Researcher Profile and Settings

Affiliation

• Faculty of Information Science and Technology　Computer Science and Information Technology　Synergetic Information Engineering

Job Title

• Professor

Degree

• Ph. D（Hokkaido University）

URL

http://autonomous.jp
http://gammon.jp/masahito

J-Global ID

• 200901088476337499

Research Interests

• Artificial Intelligence   Meta-heuristics   Arttificial Life   Complex Network   Tourism Informatics   

Research Areas

• Informatics / Human interfaces and interactions
• Informatics / Database science
• Informatics / Sensitivity (kansei) informatics
• Informatics / Soft computing
• Informatics / Biological, health, and medical informatics
• Informatics / Intelligent robotics
• Informatics / Perceptual information processing
• Informatics / Intelligent informatics

Educational Organization

•  Bachelor's degree program　School of Engineering
•  Master's degree program　Graduate School of Information Science and Technology
•  Doctoral (PhD) degree program　Graduate School of Information Science and Technology

Academic & Professional Experience

• 2020/04 - Today Center for Human Nature, Artificial Intelligence, and Neuroscience, Hokkaido University
• 2019/04 - Today Hokkaido University Graduate School of Information Science and Technology Professor
• 2018/04 - Today 公立はこだて未来大学 未来AI研究センター技術アドバイザー 兼務
• 2012/12 - 2019/03 Graduate School of Information Science and Technology, Hokkaido University Professor
• 2007/04 - 2012/11 Graduate School of Information Science and Technology, Hokkaido University Associate Professor
• 2004/04 - 2007/03 Graduate School of Information Science and Technology, Hokkaido University Associate Professor
• 2000/04 - 2004/03 Graduate School of Engineering, Hokkaido University Associate Professor
• 2000 - 2004 Associate Professor
• 2004 - Associate Professor,Graduate School of Information Science and Technology, Hokkaido University
• 1997/08 - 2000/03 Graduate School of Engineering Assistant Professor
• 1997 - 2000 Research Associate
• 1996/04 - 1997/07 Japan Society for the Promotion of Science Post Doctoral Fellow, Research Fellowship for Young Scientists
• 1996 - 1997 Postdoctoral Fellowships of Japan Society for the Promotion of Science,Post Doctoral Fellow, Japan Society for the Promotion of Science (JSPS)

Association Memberships

• 北海道地域観光学会   JAPAN SOCIETY OF MATERIAL CYCLES AND WASTE MANAGEMENT   JAPAN SOCIETY FOR FUZZY THEORY AND INTELLIGENT INFORMATICS   日本オペレーションズリサーチ学会   日本機械学会   精密工学会   観光情報学会   情報技術と旅行・観光に関する国際団体(The International Federation for IT & Travel and Tourism: IFITT)   計測自動制御学会   日本オペレーションズ・リサーチ学会   人工知能学会   電子情報通信学会   情報処理学会   The International Federation for IT & Travel and Tourism (IFITT)   

Research Activities

Published Papers

• Multi-stream Single Network: Efficient Compressed Video Action Recognition with a Single Multi-input Multi-output Network

  Hayato Terao, Wataru Noguchi, Hiroyuki Iizuka, Masahito Yamamoto

  IEEE Access 1 - 1 2024
• Acquiring Viewpoint Transformation to Reuse Self Body Image for Other on Self-Organized Internal Spatial Coordinate System

  Wataru Noguchi, Hiroyuki Iizuka, Masahito Yamamoto

  2023 IEEE International Conference on Development and Learning (ICDL) 2023/11/09
• Learning shared embedding representation of motion and text using contrastive learning

  Junpei Horie, Wataru Noguchi, Hiroyuki Iizuka, Masahito Yamamoto

  Artificial Life and Robotics 28 (1) 148 - 157 1433-5298 2023/02
• Multimodal Plastic Body and Peripersonal Space Representation Developed Through Learning of Visuo-Tactile-Proprioceptive Sensations

  Wataru Noguchi, Hiroyuki Iizuka, Masahito Yamamoto

  The 2023 Conference on Artificial Life 2023
• Compressed video ensemble based pseudo-labeling for semi-supervised action recognition

  Terao Hayato, Noguchi Wataru, Iizuka Hiroyuki, Yamamoto Masahito

  Machine Learning with Applications 9 100336 - 100336 2666-8270 2022/09 [Refereed]
  
• 視覚と運動の予測学習を通して空間認知を獲得する深層学習モデル

  野口 渉, 飯塚 博幸, 山本 雅人

  システム／制御／情報 66 (4) 139 - 144 2022/04 [Not refereed][Invited]
  
• Superposition mechanism as a neural basis for understanding others.

  Wataru Noguchi, Hiroyuki Iizuka, Masahito Yamamoto, Shigeru Taguchi

  Scientific reports 12 (1) 2859 - 2859 2022/02/21 

  Social cognition has received much attention in fields such as neuroscience, psychology, cognitive science, and philosophy. Theory-theory (TT) and simulation theory (ST) provide the dominant theoretical frameworks for research on social cognition. However, neither theory addresses the matter of how the concepts of "self" and "other" are acquired through the development of human and nonhuman agents. Here, we show that the internal representations of "self" and "other" can be developed in an artificial agent only through the simple predictive learning achieved by deep neural networks with the superposition mechanism we herein propose. That is, social cognition can be achieved without a pre-given (or innate) framework of self and other; this is not assumed (or is at least unclear) in TT and ST. We demonstrate that the agent with the proposed model can acquire basic abilities of social cognition such as shared spatial representations of self and other, perspective-taking, and mirror-neuron-like activities of the agent's neural network. The result indicates that the superposition mechanism we propose is a necessary condition for the development of the concepts of "self" and "other" and, hence, for the development of social cognition in general.
• Multi-modal shared module that enables the bottom-up formation of map representation and top-down map reading

  Wataru Noguchi, Hiroyuki Iizuka, Masahito Yamamoto

  Advanced Robotics 36 (1-2) 85 - 99 0169-1864 2022/01/02
• Bottom-up formation of number representation and top-down understanding of symbolic manipulation

  Yasuhiro Shimada, Wataru Noguchi, Hiroyuki Iizuka, Masahito Yamamoto

  The 2022 Conference on Artificial Life 2022
• Generation of Complex Patterns using Coupled Generative Adversarial Networks

  Hiroyuki Iizuka, Taiki Sasaki, Wataru Noguchi, Masahito Yamamoto

  The 2022 Conference on Artificial Life 2022
• Gradient Climbing Neural Cellular Automata

  Shuto Kuriyama, Wataru Noguchi, Hiroyuki Iizuka, Keisuke Suzuki, Masahito Yamamoto

  The 2022 Conference on Artificial Life 2022
• Automated Grooming Detection of Mouse by Three-Dimensional Convolutional Neural Network.

  Naoaki Sakamoto, Koji Kobayashi, Teruko Yamamoto, Sakura Masuko, Masahito Yamamoto, Takahisa Murata

  Frontiers in behavioral neuroscience 16 797860 - 797860 2022 

  Grooming is a common behavior for animals to care for their fur, maintain hygiene, and regulate body temperature. Since various factors, including stressors and genetic mutations, affect grooming quantitatively and qualitatively, the assessment of grooming is important to understand the status of experimental animals. However, current grooming detection methods are time-consuming, laborious, and require specialized equipment. In addition, they generally cannot discriminate grooming microstructures such as face washing and body licking. In this study, we aimed to develop an automated grooming detection method that can distinguish facial grooming from body grooming by image analysis using artificial intelligence. Mouse behavior was recorded using a standard hand camera. We carefully observed videos and labeled each time point as facial grooming, body grooming, and not grooming. We constructed a three-dimensional convolutional neural network (3D-CNN) and trained it using the labeled images. Since the output of the trained 3D-CNN included unlikely short grooming bouts and interruptions, we set posterior filters to remove them. The performance of the trained 3D-CNN and filters was evaluated using a first-look dataset that was not used for training. The sensitivity of facial and body grooming detection reached 81.3% and 91.9%, respectively. The positive predictive rates of facial and body grooming detection were 83.5% and 88.5%, respectively. The number of grooming bouts predicted by our method was highly correlated with human observations (face: r = 0.93, body: r = 0.98). These results highlight that our method has sufficient ability to distinguish facial grooming and body grooming in mice.
• I3Dを用いたツシマヤマネコの発情兆候検出

  韓 靖威, 足立 樹, 小泉 那於, 野口 渉, 飯塚 博幸, 山本 雅人

  ロボティクス・メカトロニクス講演会2021 (ROBOMECH2021) 講演論文集 2021/06 [Not refereed]
  
• カメラ画像を用いた深層学習による水族館の水透明度判定

  高 一, 佐藤 聡, 西村 究, 野口 渉, 飯塚 博幸, 山本 雅人

  ロボティクス・メカトロニクス講演会2021 (ROBOMECH2021) 講演論文集 2021/06 [Not refereed]
  
• バーチャル観光は人を満足させるのか？

  山本 雅人

  観光情報学会誌「観光と情報」 17 (1) 19 - 26 2021/05 [Not refereed][Invited]
  
• Automated detection of mouse scratching behaviour using convolutional recurrent neural network.

  Koji Kobayashi, Seiji Matsushita, Naoyuki Shimizu, Sakura Masuko, Masahito Yamamoto, Takahisa Murata

  Scientific reports 11 (1) 658 - 658 2045-2322 2021/01/12 [Refereed]
   

  Scratching is one of the most important behaviours in experimental animals because it can reflect itching and/or psychological stress. Here, we aimed to establish a novel method to detect scratching using deep neural network. Scratching was elicited by injecting a chemical pruritogen lysophosphatidic acid to the back of a mouse, and behaviour was recorded using a standard handy camera. Images showing differences between two consecutive frames in each video were generated, and each frame was manually labelled as showing scratching behaviour or not. Next, a convolutional recurrent neural network (CRNN), composed of sequential convolution, recurrent, and fully connected blocks, was constructed. The CRNN was trained using the manually labelled images and then evaluated for accuracy using a first-look dataset. Sensitivity and positive predictive rates reached 81.6% and 87.9%, respectively. The predicted number and durations of scratching events correlated with those of the human observation. The trained CRNN could also successfully detect scratching in the hapten-induced atopic dermatitis mouse model (sensitivity, 94.8%; positive predictive rate, 82.1%). In conclusion, we established a novel scratching detection method using CRNN and showed that it can be used to study disease models.
• Complexity Growth by Cooperative Interaction in Adversarial Learning

  Taiki Sasaki, Wataru Noguchi, Hiroyuki Iizuka, Masahito Yamamoto

  Proceedings of the Twenty-Sixth International Symposium on Artificial life and Robotics (AROB2021) 78 - 83 2021/01 [Refereed][Not invited]
  
• Multi-agent formation by learning communication signals using DIAL in a distributed multi-agent environment

  Hironobu Horiuchi, Wataru Noguchi, Hiroyuki Iizuka, Masahito Yamamoto

  Proceedings of the Twenty-Sixth International Symposium on Artificial life and Robotics (AROB2021) 308 - 312 2021/01 [Refereed][Not invited]
  
• Learning of Evaluation Function in Digital Curling Considering the Probability of Scores at Each End

  Kotaro Ataka, Wataru Noguchi, Hiroyuki Iizuka, Masahito Yamamoto

  Proceedings of AAAI20 Workshop, Artificial Intelligence in Team Sports 1 - 6 2020/02 [Refereed]
  
• MixMatch based semi-supervised learning for video action recognition using 3D convolutional neural networks

  Hayato Terao, Wataru Noguchi, Hiroyuki Iizuka, Masahito Yamamoto

  Proceedings of the twenty-fifth international symposium on Artificial life and Robotics 305 - 310 2020/01 [Refereed][Not invited]
  
• Effect of Reactivity Artificial Medaka on Real Medaka

  Katsuki Auchi, Wataru Noguchi, Hiroyuki Iizuka, Masahito Yamamoto

  Proceedings of the twenty-fifth international symposium on Artificial life and Robotics 86 - 89 2020/01 [Refereed][Not invited]
  
• Reinforcement Learning Method with Internal World Model Training.

  Kenji Hirata, Hiroyuki Iizuka, Masahito Yamamoto

  2020 IEEE/SICE INTERNATIONAL SYMPOSIUM ON SYSTEM INTEGRATION (SII) 201 - 204 2474-2317 2020 [Refereed]
   

  Reinforcement learning can be applied to various tasks such as developing motion controllers for humanoid or insect-like robots, playing board games and video games. However, reinforcement learning requires a large number of trials for learning appropriate behaviors in an environment that required physics simulations due to the computational costs of simulations. We propose a, model inspired by human brain simulation. The agent builds tie internal model based on the environment and trains in a simulated environment by the internal model in addition to training; in the actual environment. As a result, the agent acquires the walking movement with fewer trials.
• Analysis of Time Series Trained by Adversarial Imitation Learning in Discrete State Neural Network Model.

  Seiya Yamazaki, Hiroyuki Iizuka, Masahito Yamamoto

  2020 IEEE/SICE INTERNATIONAL SYMPOSIUM ON SYSTEM INTEGRATION (SII) 182 - 187 2474-2317 2020 [Refereed]
   

  The bird song has a grammar. It is not random nor monotonous, but complex by combining several patterns. This combination rule like a grammar can be represented as the automaton. We have a hypothesis that the adversarial imitation learning, like a dilemma, plays a major role in the evolutionary processes for developing complex songs and the emergence of grammar. In our previous studies, we modeled this learning using a neural network and showed that this learning causes the complication of the generated bird song time series. However, it is difficult to observe the emergence of the grammar-like structure in the continuous-state neural network. In this paper, to show the complication of the discrete-symbol time series, and to emerge the grammar-like structure, we extend our previous model to the discrete model. The generated sequences and song dynamics are analyzed from various points of view, and the results show that the generated sequence is chaos, and it seems that the grammar-like structure emerges.
• Semi-supervised Learning Combining 2DCNNs and Video Compression for Action Recognition.

  Hayato Terao, Wataru Noguchi, Hiroyuki Iizuka, Masahito Yamamoto

  ICVISP 2020: 4th International Conference on Vision, Image and Signal Processing(ICVISP) 14 - 6 2020 [Refereed]
  
• Complexity of bird song caused by adversarial imitation learning

  Seiya Yamazaki, Hiroyuki Iizuka, Masahito Yamamoto

  Artificial Life and Robotics 25 (1) 124 - 132 1433-5298 2020 [Refereed][Not invited]
   

  Biological evolution produces complexity through genetic variations based on randomness. In conventional communication or language simulation models, genetic variations based on randomness and fitness function rewarding task achievements play an important role in evolving communication signals to complex ones. However, it is known that not only genetic variations evolve communication but also imitative learning during developmental processes contributes to the evolution of communication. What we investigated here was to find a different principle of generating complexity which does not rely on the randomness or external environmental complexity but only on the learning processes in communication. Our hypothesis is that the contradictory learning mechanism we call the adversarial imitation learning can work to increase the complexity without relying on the random processes. To investigate our hypothesis, we implemented the adversarial imitation learning on a simulation where two agents interact with and imitate each other. Our results showed that the adversarial imitation learning causes chaotic dynamics and investigating the learning results in different types of interaction between the two; it was clarified that the adversarial imitation learning is necessary for the emergence of the chaotic time series.
• Analysis of Time Series Generated By Long Short-Term Memory Trained with Adversarial Imitation Learning

  Seiya Yamazaki, Hiroyuki Iizuka, Masahito Yamamoto

  Proceedings of the 2019 IEEE Symposium Series on Computational Intelligence (IEEE SSCI 2019) 224 - 228 2019/12 [Refereed][Not invited]
   

  Generally, birds gradually develop complicated songs by learning how to sing a song from each other. Thus, we assume that adversarial imitation learning (AIL) plays a major role in the development of complex songs and the emergence of syntax. In our previous work, we proposed an AIL using a recurrent neural network with Long Short-Term Memory to use historical information. Although the results shows that the generated time series gradually becomes complex on spatio-temporal dimensions through the AIL method, the generated time series has not been adequately analyzed. In this paper, we analyzed the generated time series with the maximum Lyapunov exponent, the zip compression and the visualization of internal state spaces. The results show that the generated time series is chaotic, which indicates syntax-like structures.
• 分割した集団の学習による役割分担の獲得

  荒木関 渉, 野口 渉, 飯塚 博幸, 山本 雅人

  情報処理北海道シンポジウム2019 2019/10 [Not refereed][Not invited]
  
• Hybrid Synthetic Approach to Animal Interaction

  Hiroyuki Iizuka, Yosuke Nakamoto, Masahito Yamamoto

  Proceedings of the Artificial Life Conference 2019 50 - 51 2019/07 [Refereed][Not invited]
  
• Spatial Representation of Self and Other by Superposition Neural Network Model

  Wataru Noguchi, Hiroyuki Iizuka, Shigeru Taguchi, Masahito Yamamoto

  Proceedings of the Artificial Life Conference 2019 531 - 532 2019/07 [Refereed][Not invited]
  
• 3次元畳み込みニューラルネットワークを用いた店舗における顧客行動の分類

  貝塚 裕, 飯塚 博幸, 山本 雅人

  ロボティクス・メカトロニクス講演会2019 （ROBOMECH2019） 1A1-M05  2019/06 [Not refereed][Not invited]
  
• UAVの空撮画像を利用した産業廃棄物最終処分場の容量推定

  賀川祐太郎, 飯塚博幸, 山本雅人

  第５１回計測自動制御学会北海道支部学術講演会論文集 27 - 30 2019/03 [Not refereed][Not invited]
  
• Developing Evaluation Function by Deep Reinforcement Learning in the Non-Deterministic Game

  安宅耕太郎, 飯塚博幸, 山本雅人

  第18回複雑系マイクロシンポジウム（CSMS2019） 62 - 65 2019/03 [Not refereed][Not invited]
  
• Feature Vector Extraction for Semi-supervised Action Recognition by LSTM Autoencoder

  寺尾颯人, 飯塚博幸, 山本雅人

  第18回複雑系マイクロシンポジウム（CSMS2019） 25 - 30 2019/03 [Not refereed][Not invited]
  
• Differentiation of communication signals using Deep Q-Network

  堀内宏信, 飯塚博幸, 山本雅人

  第18回複雑系マイクロシンポジウム（CSMS2019） 76 - 80 2019/03 [Not refereed][Not invited]
  
• Special Issue on Machine Learning for Robotics and Swarm Systems.

  Masahito Yamamoto, Takashi Kawakami, Keitaro Naruse

  J. Robotics Mechatronics 31 (4) 519 - 519 0915-3942 2019
• Navigation behavior based on self-organized spatial representation in hierarchical recurrent neural network

  Wataru Noguchi, Hiroyuki Iizuka, Masahito Yamamoto

  Advanced Robotics 33 (11) 539 - 549 0169-1864 2019 [Refereed][Not invited]
   

  A cognitive map is an internal model of the external world and contains the spatial representation of the surrounding environment. The existence of the cognitive map was first identified in rats; rats can navigate to their desired destination using cognitive maps while dealing with environmental uncertainty. We performed a mobile robot navigation experiment where obstacles were randomly placed using hierarchical recurrent neural network (HRNN) with multiple timescales. The HRNN was trained to navigate the mobile robot to the destination indicated by a snapshot image. After the training, the HRNN was able to successfully avoid the obstacles and navigate to the destination from any location in the environment. Analysis of the internal states of the HRNN showed that the module with fast timescale handles obstacle avoidance and the one with slow timescale has spatial representation corresponding to the spatial position of the destination. Moreover, in the experiment wherein the novel path appeared, the trained HRNN performed shortcut behavior. The shortcut behavior shows that the HRNN performed navigation using the self-organized spatial representation in the slow recurrent neural network. This indicates that training of goal-oriented navigation, i.e. the navigation motivated by a snapshot image of the destination results in the self-organization of cognitive map-like representation.
• Reinforcement Learning to Create Value and Policy Functions using Minimax Tree Search in Hex

  Kei Takada, Hiroyuki Iizuka, Masahito Yamamoto

  IEEE transactions on Games 12 (1) 63 - 73 2475-1502 2019 [Refereed][Not invited]
   

  Recently, the use of reinforcement-learning algorithms has been proposed to create value and policy functions, and their effectiveness has been demonstrated using Go, Chess, and Shogi. In previous studies, the policy function was trained to predict the search probabilities of each move output by Monte Carlo tree search; thus, a number of simulations were required to obtain the search probabilities. We propose a reinforcement-learning algorithm with game of self-play to create value and policy functions such that the policy function is trained directly from the game results without the search probabilities. In this study, we use Hex, a board game developed by Piet Hein, to evaluate the proposed method. We demonstrate the effectiveness of the proposed learning algorithm in terms of the policy function accuracy, and play a tournament with the proposed computer Hex algorithm DeepEZO and 2017 world-champion programs. The tournament results demonstrate that DeepEZO outperforms all programs. DeepEZO achieved a winning percentage of 79.3% against the world-champion program MoHex2.0 under the same search conditions on $13 \times 13$ board. We also show that the highly accurate policy functions can be created by training the policy functions to increase the number of moves to be searched in the loser position.
• Group Decision Making through Behavioral Interaction in Robot Swarm

  Naohiro Shibuya, Hiroyuki Iizuka, Masahito Yamamoto

  2019 IEEE/SICE International Symposium on System Integration (SII2019) 764 - 769 2474-2317 2019 [Refereed][Not invited]
   

  Social animals and insects in the natural world form swarm and show highly collective decision making and behaviors that a single entity cannot realize. In order to make decisions as a whole, such insects like honey bees communicate purely through behavioral interaction. In this paper, we simulated the group decision making process through behavioral interaction among simple robots in order to understand how the social animals and insects can make an agreement in a large group even they only have local communication. By reproducing the evolution of the decision making process, we clarify the possibilities how they make an agreement. In the simulation, the agents are required to move to a target zone that the majority of the agents prefer. The agents controlled by identical neural networks do not have communication device so that they must make an agreement through behavioral interaction. Our result shows that the agents made the correct decisions based on the majority rule through behavioral interaction. The group decision making process was differentiated into communicative and goal-directed. The analysis of the goal-directed process obtained indicates the agents solve the majority decision problem by clearly classifying behaviors by each preference.
• Establishing Mutual Interaction between Artificial and Real Medaka

  Yosuke Nakamoto, Hiroyuki Iizuka, Masahito Yamamoto

  Proceedings of the Twenty-Fourth International Symposium on Artificial Life and Robotics (AROB2019) 633 - 637 2019 [Refereed][Not invited]
  
• Mutual learning between human and machine to develop a human-machine interface to operate multi-DOF robots

  Kei Takada, Hiroyuki Iizuka, Subhransu Maji, Masahito Yamamoto

  Proceedings of the Twenty-Fourth International Symposium on Artificial Life and Robotics (AROB2019) 397 - 403 2019 [Refereed][Not invited]
  
• Modeling place and head-direction cells self-organized in different environments using recurrent neural networks

  Wataru Noguchi, Hiroyuki Iizuka, Masahito Yamamoto

  Proceedings of the Twenty-Fourth International Symposium on Artificial Life and Robotics (AROB2019) 67 - 72 2019 [Refereed][Not invited]
  
• Adversarial Imitation Learning of Bird Song Modeled with Recurrent Neural Network

  Seiya Yamazaki, Hiroyuki Iizuka, Masahito Yamamoto

  Proceedings of the Twenty-Fourth International Symposium on Artificial Life and Robotics (AROB2019) 162 - 167 2019 [Refereed][Not invited]
  
• カーリングとAI

  山本 雅人, 伊藤 毅志, 桝井 文人, 松原 仁

  情報処理学会誌「情報処理」 59 (6) 500 - 504 2018/06 [Not refereed][Invited]
  
• Reinforcement Learning for Creating Evaluation Function Using Convolutional Neural Network in Hex

  Kei Takada, Hiroyuki Iizuka, Masahito Yamamoto

  Proceedings - 2017 Conference on Technologies and Applications of Artificial Intelligence, TAAI 2017 196 - 201 2376-6816 2018/05/09 [Refereed][Not invited]
   

  An evaluation function in the board game decides the next move for computer AIs, and a high accurate evaluation function leads to a strong computer AI. Recently, the evaluation function using convolutional neural network(CNN) by supervised learning shows high evaluation accuracy. Supervised learning cannot exceed the teachers, but there must be a possibility to create a more accurate evaluation function by using reinforcement learning. In this paper, we proposed an evaluation function using CNN and reinforcement learning with games of self-play in Hex. The proposed evaluation function is tested with the previous evaluation function and world-champion program MoHex2.0. The results show that evaluation accuracy of the proposed evaluation function is higher than the previous evaluation functions, and proposed computer Hex algorithm EZO-CNN obtained a win rate of 60.0% against MoHex2.0 even though the search time of EZO-CNN is shorter than MoHex2.0.
• AI技術の最新技術と今後の展開

  山本 雅人

  環境浄化技術 2018 (5/6) 1 - 4 2018/04 [Not refereed][Invited]
  
• Self-Tuning Neuro-PID Controller for Indoor Entertainment Balloon Robot.

  Hiroya Nagata, Soichiro Yokoyama, Tomohisa Yamashita, Hiroyuki Iizuka, Masahito Yamamoto, Keiji Suzuki, Hidenori Kawamura

  J. Robotics Mechatronics 30 (3) 390 - 396 0915-3942 2018 [Refereed]
   

  Proportional-integral-derivative (PID) controllers are a classical control algorithm that are still widely used owing to their simplicity and accuracy. However, tuning the three parameters is difficult. No methods have been known to determine the exact ideal combination of the P, I, and D gains. Moreover, controlling a system that contains dynamics changes over time using fixed parameters is difficult. A self-tuning neuro-PID controller is applied to a balloon robot for indoor entertainment to enhance its accuracy in following a target trajectory. Our experiment shows the effectiveness of the neuro-PID controller over conventional hand-tuned PID controller.
• Computer Hex Algorithm Using a Move Evaluation Method Based on a Convolutional Neural Network

  Kei Takada, Hiroyuki Iizuka, Masahito Yamamoto

  Communications in Computer and Information Science 818 19 - 33 1865-0929 2018 [Refereed][Not invited]
   

  In recent years, a move evaluation model using a convolutional neural network (CNN) has been proposed for Go, and it has been shown that CNN can learn professional human moves. Hex is a two-player connection game, which is included in the Computer Olympiad. It is important to consider cell adjacency on the board for a better Hex strategy. To evaluate cell adjacency from various perspectives properly, we propose a CNN model that evaluates all candidate moves by taking as input all sets consisting of 3 mutually adjacent cells. The proposed CNN model is tested against an existing CNN model called “NeuroHex,” and the comparison results show that our CNN model is superior to NeuroHex on a 13×13 board even though our CNN model is trained on an 11×11 board. We also use the proposed model as an ordering function and test it against the world-champion Hex program “MoHex 2.0” on an 11×11 board. The results show that the proposed model can be used as a better ordering function than the ordering function created by minimax tree optimization, and we obtained a win rate of 49.0% against MoHex 2.0 (30 s/move).
• Combined Method of YOLO and IOU Tracker for Tracking and Identifying Chimpanzee

  Yuichiro Ikeda, Hiroyuki Iizuka, Masahito Yamamoto

  The 22nd Asia Pacific Symposium on Intelligent and Evolutionary Systems (IES 2018) 110 - 115 2018 [Refereed][Not invited]
  
• 手話動作分類におけるRCNNモデルの性能評価と内部状態解析

  松田 啓佑, 飯塚 博幸, 山本雅人

  2018年度 人工知能学会全国大会 2631 - 2634 2018 [Not refereed][Not invited]
  
• 畳み込みニューラルネットワークによるチンパンジーの個体識別

  池田 宥一郎, 飯塚 博幸, 山本雅人

  2018年度 人工知能学会全国大会（第32回） 93 - 95 2018 [Not refereed][Not invited]
  
• Emergence of Chaotic Time Series by Adversarial Imitation Learning

  Seiya Yamazaki, Hiroyuki Iizuka, Masahito Yamamoto

  Proceedings of the 2018 Conference on Artificial Life 659 - 664 2018 [Refereed][Not invited]
   

  Bird song is one of the phenomena that increase in complexity through evolution. A complex song is known to be advantageous for survivability and birds are known to learn how to sing a song from each other. From these facts, we have a hypothesis that adversarial imitation learning plays a major role in the evolution process of a complex song. There is a previous study that demonstrates the complexation of a bird song time series by modeling the process of adversarial imitation learning using a logistic map. However, the real bird songs have much variety and time dependencies, like grammar. Therefore, in this study, adversarial imitation learning is modeled using an artificial neural network that can approximate any function. The network learns adversarial imitation using the gradient descent method. By making such changes, the results of our study show that the generated bird songs evolve through the process of adversarial imitation learning to chaos, as seen in the previous models.
• Learning of Individual Sensorimotor Mapping to Form Swarm Behavior from Real Fish Data

  Hiroyuki Iizuka, Yosuke Namamoto, Masahito Yamamoto

  Proceedings of the 2018 Conference on Artificial Life 179 - 185 2018 [Refereed][Not invited]
   

  Swarms of birds and fish produce well-organized behaviors even though each individual only interacts with their neighbors. Previous studies attempted to derive individual interaction rules using heuristic assumptions from data on captured animals. We propose a machine learning method to obtain the sensorimotor mapping mechanism of individuals directly from captured data. Data on swarm behaviors in fish was captured, and individual positions are determined. The sensory inputs and motor outputs are estimated and used as training data. A simple feedforward neural network is trained to learn the sensorimotor mapping of individuals. The trained network is implemented in the simulated environment and resulting swarm behaviors are investigated. As a result, our trained neural network could reproduce the swarm behavior better than the Boids model. The reproduced swarm behaviors are evaluated in terms of three different measures, and the difference from the Boids model is discussed.
• Effect of behavioral complexity on development of spatial recognition

  Wataru Noguchi, Hiroyuki Iizuka, Masahito Yamamoto

  Proceedings of the 2018 Conference on Artificial Life 147 - 154 2018 [Refereed][Not invited]
   

  Animals develop spatial recognition through visuomotor integrated experiences. In nature, animals change their behavior during development and develop spatial recognition. The developmental process of spatial recognition has been previously studied. However, it is unclear how behavior during development affects the development of spatial recognition. To investigate the effect of movement pattern (behavior) on spatial recognition, we simulated the development of spatial recognition using controlled behaviors. Hierarchical recurrent neural networks (HRNNs) with multiple time scales were trained to predict visuomotor sequences of a simulated mobile agent. The spatial recognition developed with HRNNs was compared for various values of randomness of the agent's movement. The experimental results show that spatial recognition was not developed for movements with a randomness that was too small or too large but for movements with intermediate randomness.
• Deep Reinforcement Learning Method Enabling Stable Learning in Multi-Agent Environment

  Kenji Hirata, Hiroyuki Iizuka, Masahito Yamamoto

  Proceedings of the 22nd Asia Pacific Symposium on Intelligent and Evolutionary Systems (IES 2018) 163 - 168 2018 [Refereed][Not invited]
  
• Differentiation of communication signals to establish cooperation using Deep Q-Network

  Hironobu Horiuchi, Hiroyuki Iizuka, Masahito Yamamoto

  Proceedings of the 22nd Asia Pacific Symposium on Intelligent and Evolutionary Systems (IES 2018) 156 - 162 2018 [Refereed][Not invited]
  
• Evolution of communication through differentiation of communicative and goal-directed behaviors

  Naohiro Shibuya, Hiroyuki Iizuka, Masahito Yamamoto

  Artificial Life and Robotics 23 (2) 225 - 240 1433-5298 2017/12 [Refereed][Not invited]
   

  Many studies have focused on the evolution of communication in artificial life, often presupposing dedicated communication channels such as voices or pheromones. However, it is plausible that only behavior existed when communication began and that some behaviors gradually evolved as a mean of communication. A study by Quinn has shown that communication can evolve purely through the behavior for two agents in a simulated environment. We extend this study to a more complex communication using three agents. In the simulation, the agents are equipped with two wheels and eight IR sensors and are controlled by identical neural networks. This network evolved by applying a genetic algorithm to a single population. After evolution, the agents' behaviors had differentiated into communicative and goal-directed types. We analyze the differences between these two types of behavior quantitatively, and show that the evolved behaviors have communication properties such as mutuality, information flow, and invariance of the motion gain.
• Development of entertainment balloon robot system for an indoor event venue

  Hiroya Nagata, Stefan Walke, Soichiro Yokoyama, Tomohisa Yamashita, Hiroyuki Iizuka, Masahito Yamamoto, Keiji Suzuki, Hidenori Kawamura

  Artificial Life and Robotics 23 (2) 192 - 199 1433-5298 2017/12 [Refereed][Not invited]
   

  This project revolves around the combination of different state-of-the-art concepts to create balloon robots which can be used for entertainment purposes. The goal is having multiple robots perform a choreographed flight on preset paths to make use of the "dead space" over the crowd of an event, either as part of the show or displaying information and advertisements. As the balloon is flying on a defined trajectory, a tracking system for its position is needed. For this purpose, several infrared cameras monitor the position of a marker attached to the balloon. The main challenge is overcoming the instabilities of the system to ensure a smooth and precise flight, resulting from the balloons structure: the balloon is filled with helium to counteract the forces of gravity and, therefore, minimize the work needed to keep its momentum. Finding a way to achieve this optimization and the precision mentioned beforehand is the task that we will present and solve in this paper.
• カーリング研究の科学的アプローチと課題

  河村 隆, 竹川 佳成, 山本 雅人

  電気学会論文誌C 137 (9) 1137 - 1140 2017/09 [Not refereed][Invited]
  
• Cognitive map self-organization from subjective visuomotor experiences in a hierarchical recurrent neural network

  Wataru Noguchi, Hiroyuki Iizuka, Masahito Yamamoto

  ADAPTIVE BEHAVIOR 25 (3) 129 - 146 1059-7123 2017/06 [Refereed][Not invited]
   

  Animals develop and use cognitive maps, which are internal models of the external environment, to understand the spatial characteristics of their natural environment. Previous studies have shown that a hierarchical structure of recurrent neural networks contributes to the extraction of high-level concepts in sequential sensorimotor experiences. However, the previous studies did not focus on the spatial aspects of these experiences and did not acquire cognitive maps. We modified previous models and trained the proposed model with the visuomotor experiences of an agent in a simulated two-dimensional environment. The proposed model was trained to predict future visual and motion inputs even when only one modality was provided (crossmodal prediction). The proposed model correctly predicted visual images, even when the agent experienced unknown paths. Comparisons of the crossmodal predictions of the models under different conditions revealed that the crossmodal predictions related to motion resulted in self-organization of the cognitive map. Further experiments of mental simulation abilities showed that two-way crossmodal predictions (from vision and motion only) were required for consistent generation of vision and motion. These results indicated that predictive learning involving integrated vision and motion was necessary for self-organization of spatial recognition with a cognitive map.
• Attraction basin sphere estimation approach for niching CMA-ES

  Zhuoran Xu, Hiroyuki Iizuka, Masahito Yamamoto

  SOFT COMPUTING 21 (5) 1327 - 1345 1432-7643 2017/03 [Refereed][Invited]
   

  Many real-world problems are multimodal, which means algorithms should have the ability to find all or most of the multiple solutions as opposed to a single best solution. Niching is the technique that can help evolutionary algorithms to find multiple solutions. Attraction basin sphere estimation (ABSE) is a newly proposed niching method which has the power of inferring the shape of fitness landscapes by spending some extra evaluations. However, when we apply ABSE to genetic algorithms, those extra evaluations lead to an efficiency problem. However, we notice that the combination of ABSE and covariance matrix adaptation evolution strategy will not cause the efficiency problem and have a good performance. This paper implements this idea and performs experiments on a benchmark set provided by CEC 2013 niching methods competition. The algorithm is compared with the best 5 algorithms in the competition. The results show that the proposed algorithm obtains a good result. The features of the proposed algorithm are also discussed in detail.
• Hierarchical recurrent neural network model for goal-directed motion planning using self-organized cognitive map

  Wataru Noguchi, Hiroyuki Iizuka, Masahito Yamamoto

  roceedings of the Twenty-Second International Symposium on Artificial Life and Robotics 2017 (AROB 22nd 2017) 73 - 78 2017/01 [Refereed][Not invited]
  
• DCGANにおける潜在空間上の局在配置を用いた画像融合

  西村 亮, 飯塚 博幸, 山本 雅人

  精密工学会学術講演会講演論文集 公益社団法人 精密工学会 2017 27 - 28 2017 

  DCGANは画像生成モデルの学習手法として注目を集めており，画像の生成には潜在空間上のベクトルを用いる．潜在空間上には学習した画像の特徴が連続的に分布しており，潜在空間上の２点の中間点では2つの画像の特徴を併せもつような画像となる．本研究では既知の画像を潜在空間へ局在配置させる学習を行い，潜在空間と生成画像を関係づけることで異なる性質の画像の融合を試みる．
• Morphological Evolution of Soft Robots by Age-Fitness Pareto Optimization

  Ogawa Jun, Iizuka Hiroyuki, Yamamoto Masahito

  Proceedings of JSPE Semestrial Meeting 公益社団法人 精密工学会 2017 15 - 16 2017 

  Morphological evolution in evolutionary robotics is an important approach for discovering new robot systems and developmental histories of many creatures. Conventional evolutionary robotics used a rigid-bodied robot by human design in computer simulation to verify the effective robotic control systems. However, it is hard to apply the findings of the conventional evolutionary robotics approaches into the development of a real robot like a creature from the evolved robot because there is major difference between the dynamics of the virtual robot and the real robot. In this work, we propose a new method for evolving more complex and controllable soft-bodied robots without some developmental biases in order to get some innovative robotic findings by using the evolved virtual robot. This work found that the evolved soft-bodied robots have more versatility than most of conventional rigid-bodied robots and they got a lot of unintentional morphologies and behavior control systems like real creatures.
• Mobile Robot Localization from First Person View Images based on Recurrent Convolutional Neural Network

  SUGINAKA Izuho, IIZUKA Hiroyuki, YAMAMOTO Masahito

  The Proceedings of JSME annual Conference on Robotics and Mechatronics (Robomec) 一般社団法人 日本機械学会 2017 2P2 - F02 2017 

  Many robots are pervading environments of human daily life. It is crucial for those robots to estimate the current self-positions. This is called robot localization. In this paper, we propose a method using a recurrent convolutional neural network (RCNN), which is known as one of deep learning, to achieve robot localization. RCNN is a neural network model that has a convolutional architecture known as CNN with recurrent nodes. We train RCNN to estimate the current position of a robot from the view images of the first person perspectives. Our experimental results show that the estimation error decrease when the successive view images are given and it can estimate the current position accurately.

• Self-Localization and Area Search of Swarm-Robot with Self Organization

  IWADATE Kenji, SUZUKI Ikuo, WATANABE Michiko, YAMAMOTO Masahito, FURUKAWA Masashi

  The Proceedings of JSME annual Conference on Robotics and Mechatronics (Robomec) 一般社団法人 日本機械学会 2017 2A1 - G11 2017 

  This study proposed a self organizing method to localize self position and to define the final destination for area search of swarm-robot without any bird's-eye camera or landmark. Simulation results showed that robots searched an area with only ID and distance, and they covered the area uniformly.

• Robustness of Mobile Robot Localization using Recurrent Convolutional Neural Network

  Izuho Suginaka, Hiroyuki Iizuka, Masahito Yamamoto

  2017 21ST ASIA PACIFIC SYMPOSIUM ON INTELLIGENT AND EVOLUTIONARY SYSTEMS (IES) 95 - 100 2017 [Refereed]
   

  Mobile robot localization has been considered to be an important task in the field of robotics research. It is known that it is difficult to estimate the self-position in dynamic environments where the positions of objects used as landmarks change. In this paper, we propose a robust method to estimate self-position from the first person view captured by a camera on a robot using Recurrent Convolutional Neural Networks (RCNN), which is a neural network model that has a convolutional architecture known as CNN with recurrent nodes. The RCNN receives images and directly estimates the positions of the robot. Our proposed method is evaluated in simulated environments. Our experiments show that RCNN model can estimate the self position of the robot with high accuracy even if some objects move to different positions, that is, it has a robustness against objects obstructing visibility.
• Reproduction of swarm behavior by learning individual rules using neural network.

  Yosuke Nakamoto, Hiroyuki Iizuka, Masahito Yamamoto

  2017 IEEE/SICE INTERNATIONAL SYMPOSIUM ON SYSTEM INTEGRATION (SII) 847 - 852 2474-2317 2017 [Refereed]
   

  The swarm of birds and fish produces the well organized behavior even though each individual is only interacting with neighbors. In order to form the swarm, there should be some rules that each individual is following. In this paper, we examine whether the neural network can learn the individual behavioral rules and reproduce the swarm behavior. In the experiment, boids swarm and real fish swarm are used for the target of learning and reproduction. As a result, the neural network could learn and reproduce the behavior almost perfectly for the boids swarm, and partially for the real fish swarm.
• The development of spatial recognition and navigation in hierarchical recurrent neural network with convolution processing.

  Wataru Noguchi, Hiroyuki Iizuka, Masahito Yamamoto

  FOURTEENTH EUROPEAN CONFERENCE ON ARTIFICIAL LIFE (ECAL 2017) 324 - 331 2017 [Refereed]
   

  Spatial recognition is the ability to recognize the environment and generate goal-directed behaviors, such as navigation. Animals develop spatial recognition by integrating their subjective visual and motion experiences. We propose a model that consists of hierarchical recurrent neural networks with multiple time scales, fast, medium, and slow, that shows how spatial recognition can be obtained from only visual and motion experiences. For high-dimensional visual sequences, a convolutional neural network (CNN) was used to recognize and generate vision. Our model, which was applied to a simulated mobile agent, was trained to predict future visual and motion experiences and generate goal-directed sequences toward destinations that were indicated by photographs. Due to the training, our model was able to achieve spatial recognition, predict future experiences, and generate goal-directed sequences by integrating subjective visual and motion experiences. An internal state analysis showed that the internal states of slow recurrent neural networks were self-organized by the agent's position. Furthermore, such representation of the internal states was obtained efficiently as the representation was independent of the prediction and generation processes.
• Increasing Stability of Human Interaction Against Time Delay on Perceptual Crossing Experiment

  Sohtaroh Saitoh, Hiroyuki Iizuka, Masahito Yamamoto

  INTELLIGENT AND EVOLUTIONARY SYSTEMS, IES 2016 8 361 - 369 2363-6084 2017 [Refereed][Not invited]
   

  Perceptual Crossing experiment is the method for analyzing human interaction with low degrees of freedom of perception and motion. In this experiment, participants need to establish a cooperative interaction to achieve a task. In this study, we introduce time delays of participant's perception in this experiment, and evaluate the stability of human social interaction against the time delay. Our result shows that human social interactions have the stability against the time delays by changing their behaviors adaptively. We also investigate if the stability can be enhanced by modulating the participant's behavior conversely. It is shown that it is possible to increase the stability of social interaction by slowing down behaviors of participants.
• Evolution of Swarm Formation Using Homogeneous Multi-Robots

  Naohiro Shibuya, Hiroyuki Iizuka, Masahito Yamamoto

  Proceedings of The 2nd International Symposium on Swarm Behavior and Bio-Inspired Robotics 128 - 133 2017 [Refereed][Not invited]
  
• A Method of Game Tree Search in Digital Curling Including Uncertainty

  加藤修, 飯塚博幸, 山本雅人

  情報処理学会論文誌ジャーナル(Web) 57 (11) 2354‐2364 (WEB ONLY) - YM003440 1882-7764 2016/11 [Refereed][Not invited]
  
• Detecting Collapsed Buildings using Convolutional Neural Network for Estimating the Disaster Debris Amount

  利根川凜, 飯塚博幸, 山本雅人, 古川正志, 大内東

  情報処理学会論文誌ジャーナル(Web) 57 (6) 1565‐1575 (WEB ONLY) - YM003440 1882-7764 2016/06 [Refereed][Not invited]
   

  津波の被害に代表される大規模な家屋の倒壊が起こる災害時において，被災状況を把握できずに起きる復旧の遅延が問題となっている．津波により建造物の倒壊が起こり大量のがれきが発生すると，早急に輸送手段や仮置き場の位置や数の手配が必要になる．しかしながら，現状では被災地での被害状況の把握，被災がれき量の推定について短時間で行う手法は確立されていない．本研究では，震災後に撮影される被災地の空撮画像を複数用い，被災地の地図情報から家屋のある範囲を抽出し，畳み込みニューラルネットワークによる学習から，家屋倒壊判別を行う．結果として，東日本大震災で被災地となった10地域の空撮画像を利用し，約86%の正答率を得た．また，使用地域の中で，テストデータの判別正答率の悪かった地域のみをテストデータに絞った場合でも判別を行い，前実験の結果と比較して，より多くの地域，および，条件の画像データを用意すれば，判別器の正答率が向上する可能性を示した．When a massive earthquake that causes Tsunami happens, it is too difficult to get a full picture of the damages caused by the disaster and it causes the delay to recover from it. The debris generated by Tsunami or broken houses block roads and all transportation for people, rescue supply and bringing debris stop. In order to remove the debris and clear the roads, we need to decide which and how many spaces should be allocated for temporal storages immediately. However, there is no method to estimate the amount of generated debris and to get a full picture of the damage for a short time. This paper proposes a novel method that uses a convolutional neural network to classify images taken by a plane into damage or no-damage automatically. The network is trained with the images of 10 different areas stricken by the Great East Japan Earthquake. Our results shows that the trained network can correctly answer with about 86% and we found that the correct rates changes in response to the extents of the damages in different areas. The possibility to create a better network classifier is discussed in the end.
• Proposing multimodal integration model using LSTM and autoencoder

  Wataru Noguchi, Hiroyuki Iizuka, Masahito Yamamoto

  BICT 2015 - 9th EAI International Conference on Bio-Inspired Information and Communications Technologies 3 (10) e1  2016/05/24 [Refereed][Not invited]
   

  We propose an architecture of neural network that can learn and integrate sequential multimodal information using Long Short Term Memory. Our model consists of encoder and decoder LSTMs and multimodal autoencoder. For integrating sequential multimodal information, firstly, the encoder LSTM encodes a sequential input to a fixed range feature vector for each modality. Secondly, the multimodal autoencoder integrates the feature vectors from each modality and generate a fused feature vector which contains sequential multimodal information in a mixed form. The original feature vectors from each modality are re-generated from the fused feature vector in the multimodal autoencoder. The decoder LSTM decodes the sequential inputs from the regenerated feature vector. Our model is trained with the visual and motion sequences of humans and is tested by recall tasks. The experimental results show that our model can learn and remember the sequential multimodal inputs and decrease the ambiguity generated at the learning stage of LSTMs using integrated multimodal information. Our model can also recall the visual sequences from the only motion sequences and vice versa.
• Establishing interaction between machine and medaka using deep Q-Network

  Ryo Nishimura, Hiroyuki Iizuka, Masahito Yamamoto

  BICT 2015 - 9th EAI International Conference on Bio-Inspired Information and Communications Technologies 3 (9) e3 - YM003440 2016/05/24 [Refereed][Not invited]
   

  Social interaction is the basic ability for animals to survive. It is difficult for a machine to interact with human or other animals because it is not clear how the machine should interact. This paper examines whether an artificial dot controlled by a machine can interact with a medaka and induce a desired behavior. The dot is displayed on a monitor. We use deep Q network (DQN) to learn how to move the dot. As a result, the DQN could learn some basic elements to interact with the medaka and the desired behavior could be induced.
• Mutual Learning Interface using the Segmentation of Actons

  Saitoh Kentaro, Iizuka Hiroyuki, Yamamoto Masahito

  Proceedings of JSPE Semestrial Meeting 公益社団法人 精密工学会 2016 575 - 576 2016 

  ロボットの構造が複雑になるにつれて，操縦するためのインタフェースも複雑なものとなり，ユーザは複雑な操縦方法の学習を強いられる．本研究では人間の学習負荷が低い簡易なインタフェースにもかかわらず，複雑な構造のロボットを操縦できるインタフェースの作成手法を提案する．動作の分節化を利用して複数のインタフェースを切り替えて学習を行うことで，さまざまな動作を可能とするインタフェースを構築し評価する．
• Proceedings in Adaptation, Learning and Optimization.

  Sohtaroh Saitoh, Hiroyuki Iizuka, Masahito Yamamoto

  Intelligent and Evolutionary Systems - The 20th Asia Pacific Symposium(IES) 361 - 369 2016
• 巡回セールスマン問題に対する粒子群最適化の提案と性能評価

  本庄将也, 飯塚博幸, 山本雅人, 古川正志

  知能と情報(Web) 日本知能情報ファジィ学会 28 (4) 744‐755(J‐STAGE) - YM003440 1881-7203 2016 [Refereed][Not invited]
   

  In this paper, we propose a new Traveling Salesman Problem (TSP) solver based on Particle Swarm Optimization (PSO) Algorithm. PSO is one of the optimization methods classified into swarm intelligence, and consists of particles. Particles interact and move through solution space to find a better solution. PSO can find a good solution in a short time compared with Genetic Algorithm (GA) in many real-valued optimization problems. Because TSP is a combinatorial optimization problem, we change two points of the original PSO for solving TSP. The first point is that the position of each particle is represented by a tour instead of a vector. The second is that particles move by using Insertion method. Insertion method is an operation to combine a tour and sub-paths of other two tour. We analyze relation between parameters and length of an obtained tour, and indicate a guide to adjust parameters. The performance comparison result shows that the proposed method can find a better solution than Simulated Annealing (SA) and GA.
• A novel approach to quantitative evaluation of tangle formations for seaweeds in stirrer cultivation

  Jun Ogawa, Hiroyuki Iizuka, Masahito Yamamoto, Masashi Furukawa

  Journal of Robotics and Mechatronics 28 (1) 40 - 49 1883-8049 2016 [Refereed][Not invited]
   

  We discuss novel approaches to the control of seaweed tangle formations in stirrer cultivation. Cultivating seaweed is one important way to avoid such formation. Because defining such formation is difficult based on human recognition alone, there is currently no quantitative evaluation criterion for formation. We develop physical simulation for analyzing formations in a water flow field and model three factors – physical, geometric and time – for characterizing formations. Our criterion is that formations are created by using these factors as input to a nonlinear support vector machine. To show the effectiveness of our simulation and criteria, we confirm the control effects of the water flow in simulation and the real world. Results show that our simulation model is useful for avoiding such formation in the real world.
• Twist-State Classifier for Floating Marine Biomass Based on Physical Simulation

  Jun Ogawa, Hiroyuki Iizuka, Masahito Yamamoto, Masashi Furukawa

  INTELLIGENT AUTONOMOUS SYSTEMS 13 302 821 - 830 2194-5357 2016 [Refereed][Not invited]
   

  This paper describes new approaches for classifying twist of seaweeds. There are no evaluation measures of the twist formation of complicated objects quantitatively because the definition of a qualitative twist is a difficult problem. The twist of seaweeds is one of these problems. In this paper, we propose three factors (physical, geometric, and time factor of twist) for characterizing the twist state, and we develop the twist-state classifier based on these factors. Additionally, the analysis experiment verifies how the classifier shows the classification accuracy of twist state.
• Establishing Interaction between Machine and Medaka using Deep Q-Network

  Nishimura Ryo Iizika Hiroyuki, Yamamoto Masahito

  Proceeding of the 9th EAI International Conference on Bio-inspired Information and Communications Technologies (BICT 2015) 2015/12 [Refereed][Not invited]
  
• Proposing Multimodal Integration Model Using LSTM and Autoencoder

  Noguchi Wataru Iizuka Hiroyuki, Yamamoto Masahito

  Proceedings of the 9th EAI International Conference on Bio-inspired Information and Communications Technologies (BICT 2015) 2015/12 [Refereed][Not invited]
  
• Developing evaluation function of hex using board network characteristics and SVM

  Takada Kei, Honjo Masaya, Iizuka Hiroyuki, Yamamoto Masahito

  Transactions of the Japanese Society for Artificial Intelligence 30 (6) 729 - 736 1346-8030 2015/10/27 [Refereed][Not invited]
   

  The game of Hex is the board game with simple rules and is classified as a two-player, zero-sum, logical perfect information game. The game proceeds by putting their pieces in turn on empty cells of the board. A player wins if the player connects the two opposing sides of the board with their own color pieces. Our previous study clarified that it is effective to develop a computer Hex strategies with the network characteristics as the evaluation function to evaluate the board states from the global and local perspectives and showed that there is the best parameter to decide the ratio between global and local evaluation during a match. In order to go beyond the strategy, we hypothesize that the ratio must change during a match depending on the board states as human players differently evaluate the board states at the beginning, middle and final stages. First, we examine the hypothesis whether the better wining rate can be achieved by changing the ratio of global and local evaluation and propose a novel computer Hex program that can evaluate the board states while changing the global and local evaluation by recognizing the board states with SVM. Our proposed method is evaluated with the current world-champion program called MoHex.
• Proposing storage location assignment using self-organizing map on network topology

  Kenichi Minami, Hiroyuki Iizuka, Masashi Furukawa, Masahito Yamamoto

  Transactions of the Japanese Society for Artificial Intelligence 30 (6) 737 - 744 1346-8030 2015/10/27 [Refereed][Not invited]
   

  The distribution center became more important because the growth of the internet enabled us to buy various products easily on the Internet. In the distribution center, one of the main works is order picking which is to carry the products from shelves of the warehouse according to the orders received from customers. Efficient order picking reduces the large amount of work and the improvement of the order picking is necessary in a larger distribution center. It is important for order picking not only to give workers a good tour plan but also to assign products to the storage shelves in the distribution center. It is known that it is effective to consider frequency order and frequency of co-occurrence at the same time for storage location assignment. The conventional studies proposes the class-based method for frequency order and evaluation function to evaluate frequency order and co-occurrence of orders at the same time. This study proposes a novel method how to assign products to the storage using a co-occurrence network of ordered products and self-organizing map on network topology of the warehouse. Our proposed method is compared with the conventional studies and our experiments show that our proposed method can be more effective than the conventional methods.
• Time delay effect on social interaction dynamics

  Hiroyuki Iizuka, Sohtaroh Saitoh, Davide Marocco, Masahito Yamamoto

  HAI 2015 - Proceedings of the 3rd International Conference on Human-Agent Interaction 217 - 219 2015/10/21 [Refereed][Not invited]
   

  This paper investigates time-delay effects of the human social interaction to understand how human can adapt to the time delay, which will be required in software agents to establish a harmonic interaction with human. We performed the minimal experiments of social interaction called perceptual crossing experiments with time delay. Our result shows that the social interaction breaks down when the total amount of time delay is given more than about one second. However, the interaction breaks more easily when the time delay is given to both participants than to either participant.
• Time delay effect on social interaction dynamics

  Hiroyuki Iizuka, Sohtaroh Saitoh, Davide Marocco, Masahito Yamamoto

  HAI 2015 - Proceedings of the 3rd International Conference on Human-Agent Interaction 217 - 219 2015/10/21 [Refereed][Not invited]
   

  This paper investigates time-delay effects of the human social interaction to understand how human can adapt to the time delay, which will be required in software agents to establish a harmonic interaction with human. We performed the minimal experiments of social interaction called perceptual crossing experiments with time delay. Our result shows that the social interaction breaks down when the total amount of time delay is given more than about one second. However, the interaction breaks more easily when the time delay is given to both participants than to either participant.
• Water Flow Control for Inhibiting Seaweed Twist in Real Environment and Physical Simulation

  Jun Ogawa, Hiroyuki Iizuka, Masahito Yamamoto, Masashi Furukawa

  Proceedings of the Twentieth International Symposium on Artificial Life and Robotics (AROB 20th 2015) 291 - 296 2015/10 [Refereed][Not invited]
  
• Discriminating Social Behavior of Guppy Swarm by Convolutional Neural Network

  Kota Tomine, Wataru, Noguchi Hiroyuki Iizuka, Masahito Yamamoto

  Proceedings of the First International Symposium on Swarm Behavior and Bio-Inspired Robotics 414 - 417 2015/10 [Refereed][Not invited]
  
• 観光情報学と観光情報学会の取り組み

  川村 秀憲, 山本, 雅人, 鈴木, 恵二, 松原 仁

  サービソロジー 1 (4) 36 - 41 2188-5362 2015/10 [Refereed][Not invited]
  
• Application of local clustering organization to reactive job-shop scheduling

  Yasumasa Tamura, Hiroyuki Iizuka, Masahito Yamamoto, Masashi Furukawa

  SOFT COMPUTING 19 (4) 891 - 899 1432-7643 2015/04 [Refereed][Not invited]
   

  This study focuses on the reactive scheduling in manufacturing systems. In practical situations, the predetermined schedule often changes under the influence of the unpredictable or variable environment in the factory. The reactive scheduling (RS) is a methodology to modify the predetermined schedule to cope with variable situations without suspending the proceeding of the processes on the schedule. Therefore, the RS requires a method to improve the schedule with fast computational time. To obtain an effective method for the RS, this paper proposes a novel RS method using local clustering organization. Also, this paper examines its effectiveness by a numerical experiment. Our results suggest that the proposed method is more effective than the method using genetic algorithm.
• ミニマックス法に基づく報酬伝搬を用いたモンテカルロ木探索法

  三橋 允, 飯塚 博幸, 山本 雅人

  精密工学会学術講演会講演論文集 公益社団法人 精密工学会 2015 755 - 756 2015 

  ゲーム木探索の中でもランダムなシミュレーションを繰り返すことで近似的な評価値を得るモンテカルロ木探索法と呼ばれる手法が存在する。しかしランダム性故に現実にはまず起こり得ないシミュレーション結果も評価に含まれてしまうことがあるため、数手に渡り正確な読みが必要となる局面は苦手とされている。そこでシミュレーション結果（報酬）をミニマックス的に伝搬することで、末端の情報を活用し評価精度の向上を目指す。
• 畳み込みニューラルネットワークを用いた群行動の分類

  遠峰 孝太, 飯塚 博幸, 山本 雅人

  精密工学会学術講演会講演論文集 公益社団法人 精密工学会 2015 923 - 924 2015 

  群で生活する動物は蟻や魚等，数多く存在する．種により群の形態は様々であるが，同じ種の群の違いは一見するとわかりにくい．本研究では，群の全体的な振る舞いの違いが機械学習によって分類可能かどうかを検証する．分類器には，画像認識において高い成果を得ている畳み込みニューラルネットワークを動画が扱えるように拡張したものを用いて動画データから群のパターンの違いを識別することが有用であるかを検証する．
• ゲーム木探索に基づくカーリングAIの開発

  加藤 修, 飯塚 博幸, 山本 雅人

  精密工学会学術講演会講演論文集 公益社団法人 精密工学会 2015 915 - 916 2015 

  カーリングは氷上のチェスと呼ばれる戦略性の高いゲームである．また，確率的要素を持ち，取り得る手と局面が無限に存在するゲームの研究材料として注目されている．近年，カーリングシミュレータが開発され，カーリングの戦略を解析することが可能となった．本研究では，実際の試合における時間的制約を考慮したゲーム木探索に基づくカーリングAIを開発し，その有効性をシミュレーションにより検証する．
• Priority Rule-Based Construction Procedure Combined with Genetic Algorithm for Flexible Job-Shop Scheduling Problem.

  Soichiro Yokoyama, Hiroyuki Iizuka, Masahito Yamamoto

  JACIII 19 (6) 892 - 899 2015 [Refereed][Not invited]
  
• Extended Local Clustering Organization with Rule-Based Neighborhood Search for Job-shop Scheduling Problem

  Tamura Yasumasa Iizuka Hiroyuki, Yamamoto Masahito

  Proceedings of the 18th Asia Pacific Symposium on Intelligent and Evolutionary Systems 2 465 - 477 2015 [Refereed][Not invited]
   

  Job-shop scheduling problem(JSP) is one of the hardest combinatorial optimization problems. Local clustering organization (LCO) is proposed by Furukawa et al. to solve such a combinatorial optimization problems as the metaheuristic algorithm. Its effectiveness for the JSP is verified by the comparison with genetic algorithm. However, since LCO is based on the greedy search, the solution is often trapped in local minima. To improve the problem, this study proposes a novel neighborhood search method using priority rules. This paper also shows the extended LCO integrated with the search method.
• Digital Curling Strategy based on Game Tree Search

  Masahito Yamamoto, Shu Kato, Hiroyuki Iizuka

  2015 IEEE CONFERENCE ON COMPUTATIONAL INTELLIGENCE AND GAMES (CIG) 474 - 480 2325-4270 2015 [Refereed][Not invited]
   

  Strategy for digital curling based on the game tree search is demonstrated. Digital curling has been developed for simulating curling which is one of the winter sports. We present a curling playing program run on the digital curling simulator. It enable us to decide the direction and the speed of the stone to be delivered for maximizing the evaluation values of resultant game states. The novel evaluation function is constructed and the effective method for reducing the simulation trials is proposed for finding the best shot on the current game state. Our experimental results reveal that our proposed program outperforms the previous rule-based program and competes with the MonteCarlo based program.
• Applying homeostatic neural controller to multi-legged robot and adaptivity to novel disruptions

  Iizuka Hiroyuki, Nakai Hiroki, Yamamoto Masahito

  Proceedings of the European Conference on Artificial Life 2015 264 - 270 2015 [Refereed][Not invited]
   

  A robot implemented with a homeostatic neural controller can adapt to disruptions that have not been experienced before. When novel changes occur, the homeostatic neural controller autonomously detects the disruptions from their behaviors and recreates new motions to achieve desired behaviors. In previous studies, the homeostatic neural controller has been only applied to a robot with a simple structure, i.e. wheeled robots which are controlled by adjusting the outputs of wheel motors. It is not clear whether the homeostatic neural controller can work properly when it is applied to a robot with a more complex structure. Therefore, we implement the homeostatic neural controller onto the multi-legged robot and investigate adaptivity. As a result, the robot with the homeostatic neural controller recreates new motion patterns to achieve a desired behaviors after novel disruptions that break a leg.
• Developing Computer Hex Using Global and Local Evaluation Based on Board Network Characteristics

  Kei Takada, Masaya Honjo, Hiroyuki Iizuka, Masahito Yamamoto

  ADVANCES IN COMPUTER GAMES, ACG 2015 9525 235 - 246 0302-9743 2015 [Refereed][Not invited]
   

  The game of Hex was invented in the 1940s, and many studies have proposed ideas that led to the development of a computer Hex. One of the main approaches developing computer Hex is using an evaluation function of the electric circuit model. However, such a function evaluates the board states only from one perspective. Consequently, it is recently defeated by the Monte Carlo Tree Search approaches. In this paper, we therefore propose a novel evaluation function that uses network characteristics to capture features of the board states from two perspectives. Our proposed evaluation function separately evaluates the board network and the shortest path network using betweenness centrality, and combines the results of these evaluations. Furthermore, our proposed method involves changing the ratio between global and local evaluations through a support vector machine (SVM). So, it yields an improved strategy for Hex. Our method is called Ezo. It was tested against the world-champion Hex program MoHex. The results showed that our method was superior to the 2011 version of MoHex on an 11 x 11 board.
• Priority rule-based construction procedure combined with genetic algorithm for flexible job-shop scheduling problem

  Soichiro Yokoyama, Hiroyuki Iizuka, Masahito Yamamoto

  Journal of Advanced Computational Intelligence and Intelligent Informatics 19 (6) 892 - 899 1883-8014 2015 [Refereed][Not invited]
   

  The heuristic method we propose solves the flexible job-shop scheduling problem (FJSP) using a solution construction procedure with priority rules. FJSP is more complex than classical scheduling problems in that operations are processed on one of multiple candidate machines, one of which must be selected to get a feasible solution. The solution construction procedure with priority rules is implemented on top of the efficient existing method for solving the FJSP which consists of a genetic algorithm and a local search method. The performance of the proposed method is analyzed using various benchmark problems and it is confirmed that our proposed method outperforms the existing method on problems with particular conditions. The conditions are further investigated by applying the proposed method on newly created benchmark.
• Application of local clustering organization to reactive job-shop scheduling

  Yasumasa Tamura, Hiroyuki Iizuka, Masahito Yamamoto, Masashi Furukawa

  Soft Computing 19 (4) 891 - 899 1433-7479 2015 [Refereed][Invited]
   

  This study focuses on the reactive scheduling in manufacturing systems. In practical situations, the predetermined schedule often changes under the influence of the unpredictable or variable environment in the factory. The reactive scheduling (RS) is a methodology to modify the predetermined schedule to cope with variable situations without suspending the proceeding of the processes on the schedule. Therefore, the RS requires a method to improve the schedule with fast computational time. To obtain an effective method for the RS, this paper proposes a novel RS method using local clustering organization. Also, this paper examines its effectiveness by a numerical experiment. Our results suggest that the proposed method is more effective than the method using genetic algorithm.
• Attraction basin sphere estimating genetic algorithm for neuroevolution problems

  Zhuoran Xu, Hiroyuki Iizuka, Masahito Yamamoto

  Artificial Life and Robotics 19 (4) 317 - 327 1614-7456 2014/12/10 [Refereed][Not invited]
   

  In our previous work, we proposed a niching genetic algorithm: attraction basin sphere estimating genetic algorithm (ABSEGA). It can detect and recognize attraction basin spheres on a fitness landscape. Attraction basin spheres are used to improve the performance of niching. However, ABSEGA does not work well on Neuroevolution problems, because those problems are usually high dimensional and have numerous local optima. In this paper, we calculate the height of valleys to improve the niching results. The height is used to determine if an optimum is important, so we can track important optima even among hundreds of unimportant optima. We examine our method in a robotic arm problem, in which we evolve an artificial neural network to control the arm to catch balls. The results show that our method has a high ability to escape local optima and find relatively better solutions.
• Estimation of seaweed twist based on diffusion kernels in physical simulation

  Jun Ogawa, Masahito Yamamoto, Masashi Furukawa

  Journal of Advanced Computational Intelligence and Intelligent Informatics 18 (5) 823 - 829 1883-8014 2014/09/01 [Refereed][Not invited]
   

  In the optimization of seaweed cultivation now being extensively researched, a problem arises in avoiding twisting seaweed. Twisting is a complex phenomenon and difficult to formulate. Producing the optimal water flow, requires calculating the risk of twisting occurring. In this paper, we propose a method to calculate and estimate the twist state based on the results of physical simulation. We devise a seaweed model using multiple rigid bodies that mutually and physically interfere. One result of physical interference, is that the model has two internal state variables - contact time and the number of contact points between individual pieces of seaweed. We introduce an evaluation function to quantify twisting using these state variables in each time step, and propose a way to calculate twist risk based on the von Neumann and Laplacian diffusion kernels, in a dynamic network.
• Hybrid genetic algorithm with priority rule-based reconstruction for flexible job-shop scheduling

  Soichiro Yokoyama, Hiroyuki Iizuka, Masahito Yamamoto

  2014 Joint 7th International Conference on Soft Computing and Intelligent Systems, SCIS 2014 and 15th International Symposium on Advanced Intelligent Systems, ISIS 2014 749 - 754 2377-6870 2014/02/18 [Refereed][Not invited]
   

  A heuristic method for solving flexible job-shop scheduling problem (FJSP) is proposed. FJSP is more complex than classical scheduling problems in that operations are processed on one of multiple candidate machines and one of them must be selected to obtain a feasible solution. The proposed method utilizes a solution improvement procedure with priority rules. This procedure is implemented on top of the efficient existing method for the FJSP which consists of genetic algorithm and local search method. The performance of the proposed method is analyzed on various benchmark problems. As a result, it is confirmed that the proposed method outperforms the existing method on problems with particular conditions while its average performance does not match the state-of-the-art algorithm.
• FAN-14-009 Morphological Evaluation of Oropharyngeal Soft Tissues in Upper Airway MR Images for Automatic Classification of Severe Obstructive Sleep Apnea Syndrome

  MIKAMI Tsuyoshi, YONEZAWA Kazuya, KOJIMA Yohichiro, YAMAMOTO Masahito

  第24回インテリジェント・システム・シンポジウム(FAN2014)講演論文集 日本機械学会 2014 (24) 42 - 45 2014 [Refereed][Not invited]
  
• ジョブショップ問題の重み付き納期遅れ最小化に対する割付け規則を用いた近似解法の提案

  横山 想一郎, 飯塚, 博幸, 山本 雅人

  日本オペレーションズ・リサーチ学会2014年秋季研究発表会アブストラクト集 2014 68 - 69 1883-1893 2014 [Refereed][Not invited]
  
• Swarm Behavior of Simulated Flapping Birds using Kuramoto Model

  Ryota Kato, Hiroyuki Iizuka, Masahito Yamamoto

  2014 IEEE/SICE INTERNATIONAL SYMPOSIUM ON SYSTEM INTEGRATION (SII) 112 - 117 2014 [Refereed][Not invited]
   

  This paper shows the different types of swarm behaviors of simulated flapping birds obtained in our simulation. The individual birds are modeled in the physical virtual environment and flying by flapping. The evolutionary method is applied to obtain how to fly as an individual. After the evolution, the multiple birds interact with each other with Kuramoto model while flying at the same time. Our result shows the top-down regulation from the shape of formations to the individual behaviors. The regulation changes individual objectives to the globally determined objectives due to the entrainment caused by Kuramoto model.
• Insertion-based Particle Swarm Optimization with Local Interaction

  Masaya Honjo, Hiroyuki Iizuka, Masahito Yamamoto

  2014 JOINT 7TH INTERNATIONAL CONFERENCE ON SOFT COMPUTING AND INTELLIGENT SYSTEMS (SCIS) AND 15TH INTERNATIONAL SYMPOSIUM ON ADVANCED INTELLIGENT SYSTEMS (ISIS) 755 - 760 2377-6870 2014 [Refereed][Not invited]
   

  Insertion-based Particle Swarm Optimization (IPSO) is an optimization method for Traveling Salesman Problem (TSP) s. IPSO can find a better solution in a short time compared with Simulated Annealing (SA) and Genetic Algorithm (GA). In order to find a near optimal solution, we propose IPSOLB by improving IPSO. IPSOLB is based on the local version of PSO. In this method, a particle is affected by its neighbor particles instead of the whole population. As a result of this modification, agents are not converged immediately on the best solution obtained so far, and the population maintains various candidate solutions. For this reason, in comparison with IPSO, IPSOLB can be expected to search a solution while avoiding local optimum solutions. Through numerical experiments, it is shown that the proposed method can find a better solution than IPSO in reasonable time.
• Usefulness of Image Analysis on Upper Airway MRI for the Classification of Severe Obstructive Sleep Apnea Syndrome (OSAS)

  MIKAMI Tsuyoshi, YONEZAWA Kazuya, KOJIMA Yohichiro, YAMAMOTO Masahito, FURUKAWA Masashi

  Medical Imaging and Information Sciences 医用画像情報学会 31 (1) 13 - 18 0910-1543 2014 [Refereed][Not invited]
   

  This paper proposes an evaluation index for the classification of severe Obstructive Sleep Apnea Syndrome (OSAS) by the use of the tongue morphology and the cross sectional area of the narrowest upper airway evaluated by image analysis on the upper airway MRI. In general, polysomnography (PSG) is a gold standard evaluation for severe SAS, but sometimes the symptoms do not occur during PSG screening because of the first night effect. The morphology of the upper airway, on the other hand, gives much information about the severity of OSAS. So, the upper airway MRI is often used for medical diagnosis, but few evaluation indices have been reported objectively. We focused on the tongue region and considered two directions from the center to the edge of the tongue higher correlated with the severity and determined the cross sectional area in the narrowest upper airway. These features are weighted and linearly combined to predict the severity. Finally, the severe patients are detected by judging whether the prediction value is greater than or equal to 30. As a result, the true positive rate is 0.909 and the false positive rate is 0.476 for detecting the severe patients.
• Priority rule-based reconstruction for total weighted tardiness minimization of job-shop scheduling problem

  Soichiro Yokoyama, Hiroyuki Hzuka, Masahito Yamamoto

  JOURNAL OF ADVANCED MECHANICAL DESIGN SYSTEMS AND MANUFACTURING 8 (5) 8 - 5 1881-3054 2014 [Refereed][Not invited]
   

  We propose an efficient heuristic method for job-shop scheduling problems (JSP) with the objective of total weighted tardiness minimization The proposed method uses schedule reconstructions by priority rules to guide a local search towards promising solutions. Typically priority rules determine the whole schedule and thus incorporating it with local search procedure is difficult. In our proposed method, a priority rule decides a schedule within an arbitrary selected time window and the rest of the schedule is determined by the schedule obtained by a conventional local search method. The priority rule is given by a linear combination of simple priority rules. To improve a schedule efficiently, an appropriate set of time window and gains of the linear combined priority rule is required. Therefore, we optimize the set of time window and rule gains with genetic algorithm This rule-based reconstruction procedure and the conventional local search procedure are alternately applied to a current solution. In the experiments, the efficiency of rule-based reconstruction procedure is verified and the proposed method is compared with one of the most effective existing methods. The results show that the proposed method outperforms the existing method on large problems with sufficient computational time. The average performance is particularly improved due to the ability of rule-based reconstruction procedure to escape from local optima of the conventional local search procedure efficiently.
• An artificial neural network based on the architecture of the cerebellum for behavior learning

  Kenji Iwadate, Ikuo Suzuki, Michiko Watanabe, Masahito Yamamoto, Masashi Furukawa

  Advances in Intelligent Systems and Computing 270 143 - 151 2194-5357 2014 [Refereed][Not invited]
   

  In the last decade, artificial intelligence (AI) pervades every aspect of our lives. However, there is a gap between AI-based machine behavior and human in natural communication. The behavior of most AI is determined as a task list generated by engineers, but to obtain high-level intelligence, AI needs the ability to cluster tasks from circumstances and learn a strategy for achieving each task. In this study, we focus on the human brain architecture that gives it the ability to self-organize and generalize sensory information. We propose an Artificial Neural Network (ANN) model based on that architecture. We describe a cerebellum-based ANN model (C-ANN) and verify its capacity to learn from the phototaxic behavior acquisition of a simple two-wheeled robot. As a result, the controller of the robot is self-organized to be simple and able to achieve positive phototaxis. This result suggests that the proposed C-ANN model has the capability of supervised learning.
• Estimation of Twist Phenomenon in Seaweed Population based on Diffusion Kernel

  Jun Ogawa, Masahito Yamamoto, Masashi Furukawa

  Proceedings of the 14th International Symposium on Advanced Intelligent Systems (ISIS 2013) 2013/12 [Refereed][Not invited]
  
• Strategy of Computer Hex using Network Characteristics

  Kei Takada, Masaya Honjo, Masahito Yamamoto

  Proceedings of the 14th International Symposium on Advanced Intelligent Systems (ISIS 2013) 2013/11 [Refereed][Not invited]
  
• 観光情報学−情報処理技術の観光への適用

  松原 仁, 山本, 雅人, 川村, 秀憲, 鈴木 恵二

  システム／制御／情報 システム制御情報学会 57 (8) 316 - 322 0916-1600 2013/08/15 [Refereed][Not invited]
  
• Tourism Informatics : Application of Information Technology to Tourism(Where System & Information Technology Meet Tourism)

  MATSUBARA Hitoshi, YAMAMOTO Masahito, KAWAMURA Hidenori, SUZUKI Keiji

  Systems, control and information システム制御情報学会 57 (8) 316 - 322 0916-1600 2013/08/15 [Not refereed][Not invited]
  
• 複合的人工ニューラルネットワーク−教師なし学習を用いた動的制御における選択型ニューラルネットワークアンサンブル−

  大江 亮介, 鈴木, 育男, 山本, 雅人, 古川 正志

  精密工学会誌 公益社団法人 精密工学会 79 (6) 552 - 558 0912-0289 2013/06/05 [Refereed][Not invited]
   

  This paper describes a novel method of combining artificial neural networks (ANNs), the composite artificial neural network (CANN), to improve performance of evolving ANNs (EANNs) in dynamic system control problems. Methods of combining ANNs by majority voting or averaging are not effective in controlling dynamic systems by EANNs. Unsupervised learning of EANNs is mathematically described, and then it is shown that the reason for ineffectiveness depends on the mechanism of evaluating ANNs indirectly by states. To avoid this problem, the CANN selects the suitable ANN by a high-level ANN to combine some ANNs. In numerical experiments, a flapping flight model is controlled by a common EANN and the CANN. The model motion is calculated by physical engine PhysX, and a common EANN and the CANN are optimized by the particle swarm optimization (PSO) respectively. The experiments show that the average evaluation of the CANN is 6.46% higher than that of a common EANN for the same computational time.
• スワーム:群れの創発的挙動生成 人工生物の群れ行動のモデリングとその行動獲得

  古川正志, 岩館健司, 鈴木育男, 山本雅人, 渡辺美知子

  計測と制御 計測自動制御学会 52 (3) 246 - 251 0453-4662 2013/03/10 [Not refereed][Not invited]
  
• Composite Artificial Neural Network for Controlling Artificial Flying Creature

  Ryosuke Ooe, Ikuo Suzuki, Masahito Yamamoto, Masashi Furukawa

  INTELLIGENT AUTONOMOUS SYSTEMS 12 , VOL 2 194 863 - 871 2194-5357 2013 [Refereed][Not invited]
   

  This paper proposes a composite artificial neural network (CANN). The CANN is a method that contains concepts of an evolutionary artificial neural network, a neural network ensemble and subsumption architecture, and designed for efficient robot control. In the CANN, while low-level ANNs work as actual controllers for calculating outputs, a high-level work as a selector. The high-level ANN works up some optimized ANNs, which output real values, into a controller. In order to verify performance of the CANN, numerical experiments are carried out. An artificial flying creature (AFC) is controlled by the CANN for flying to a target point. Motions of the AFC is calculated by a virtual physics environment, which consists of functions of a physical engine PhysX and a simple drag force calculation. Experimental results show that performance of the CANN is higher than that of a simple ANN.
• Acquisition of Ground Behavior on the Locust Model under the Virtual Physical Environment

  Yuta Umemura, Masahito Yamamoto, Ikuo Suzuki, Masashi Furukawa

  INTELLIGENT AUTONOMOUS SYSTEMS 12 , VOL 2 194 775 - 783 2194-5357 2013 [Refereed][Not invited]
   

  We have studied about ground behavior on the locust model under the virtual physical environment. In the previous study, the locust model acquires jumping behavior by use of neuro-evolution. However, a real locust often uses the jumping and walking behavior more flexibility. In this study, we realize the jumping and walking behavior for the same locust model. Both of those behavior are trained by use of neuro-evolution which is composed of artificial neural network(ANN) and real-coded genetic algorithm(RCGA). We analyze the obtained jumping and walking behavior and show the possibility to acquire flexible behavior.
• Acquisition of Dispatching Rules for Job-Shop Scheduling Problem by Artificial Neural Networks Using PSO.

  Yasumasa Tamura, Masahito Yamamoto, Ikuo Suzuki, Masashi Furukawa

  JACIII 17 (5) 731 - 738 2013 [Refereed][Not invited]
  
• A NEW HEURISTIC FOR TRAVELING SALESMAN PROBLEM BASED ON LCO

  Soichiro Yokoyama, Ikuo Suzuki, Masahito Yamamoto, Masashi Furukawa

  PROCEEDINGS OF THE ASME/ISCIE INTERNATIONAL SYMPOSIUM ON FLEXIBLE AUTOMATION, ISFA 2012 345 - 350 2013 [Refereed][Not invited]
   

  The Traveling Salesman Problem (TSP) is one of the most well known combinatorial optimization problem and has wide range of application. Since the TSP is NP-hard, many heuristics for the TSP have been developed. This study proposes a new heuristic for the TSP based on one of these heuristics named Local Clustering Optimization (LCO). LCO is a metaheuristic proposed by Furukawa at el. to give an accurate solution for large scale problems in a reasonable time. However, conventional LCO-based heuristics for the TSP is not suited to solving asymmetric instances. The proposed method iteratively adopts tour construction heuristics such as nearest neighbor and random insertion to get an accurate solution more efficiently for the both asymmetric and symmetric TSP. The proposed method and other heuristics are applied to benchmark instances from TSPLIB and randomly generated instances. The experiment shows the proposed method is superior to conventional LCO in terms of accuracy of the solution. However; the proposed method is inefficient for instances which are not close to Euclidean due to the same property of insertion heuristic.
• LEMとDSSOMのハイブリッド可視化法におけるパラメータ調整

  川口 光, 山本, 雅人, 古川 正志

  第98回知能ベースシステム研究会 人工知能学会研究会資料SIG-KBS-B203 21 - 26 2013 [Not refereed][Not invited]
  
• The Boundary Archive Genetic Algorithm

  XU ZHUORAN SUZUKI IKUO YAMAMOTO MASAHITO FURUKAWA MASASHI

  2013年度精密工学会春季大会学術講演会講演論文集 283 - 284 2013 [Not refereed][Not invited]
  
• DYNAMIC MODELING AND SIMULATION OF MOVING MARINE PLANT POPULATION

  Jun Ogawa, Masahito Yamamoto, Masashi Furukawa

  PROCEEDINGS OF THE IADIS INTERNATIONAL CONFERENCE ON COMPUTER GRAPHICS, VISUALIZATION, COMPUTER VISION AND IMAGE PROCESSING 2013 157 - 160 2013 [Refereed][Not invited]
   

  Cultivation of marine plants is remarkable in the field of energy development. Physical simulation on computer is convenient for the analysis of the motion of marine plant populations. This is a practical approach in terms of cost in order to design the optimal cultivation system, device and environment. Our study aims to elucidate physics phenomenon in a large cultivation system of marine plants and provide new engineering insights into cultural techniques. This paper describes how to model the physical motion of marine plant populations which is cultivated under the high volume fraction. It is possible to consider the physical interference by representing the plant with rigid bodies and using physics engine. Our proposed modeling method keeps filling plant models while avoiding overlaps between the models in an interior of three-dimensional mesh structure object in order to reduce the error of physics calculation when handling many rigid bodies. A fluid environment is constructed by Lattice Boltzmann method in the virtual space. The dynamics of marine plant is approximated by applying buoyancy and drag force. Results show that the plant populations moves with fluid velocity while causing the adhesion between individuals.
• An attraction basin estimating genetic algorithm for multimodal optimization

  Zhuoran Xu, Mikko Polojärvi, Masahito Yamamoto, Masashi Furukawa

  GECCO 2013 - Proceedings of the 2013 Genetic and Evolutionary Computation Conference Companion 131 - 132 2013 [Refereed][Not invited]
   

  Radii-based niching evolutionary algorithms are criticized for the difficulty of the proper choice of the radius parameter. Detect-multimodal method enables the identification of niches without an explicit user-defined radius parameter. Although robust, the detect-multimodal method based algorithms are computationally expensive. We propose a novel algorithm called Attraction Basin Estimating Genetic Algorithm (ABE), which estimates the radius parameter based on the detect-multimodal method and uses the estimated radius to identify niches. Our experiments demonstrate that ABE has a similar ability to solve the multimodal optimization problem as Topological Species Conservation algorithm which is based on the detect-multimodal method, but much more efficiently.
• Study on Twining of Virtual Seaweed in Fluid Environment

  Jun Ogawa, Masahito Yamamoto, Ikuo Suzuki, Masashi Furukawa

  INTELLIGENT AUTONOMOUS SYSTEMS 12 , VOL 2 194 815 - + 2194-5357 2013 [Refereed][Not invited]
   

  This paper describes the twining of seaweed in fluid environment by computer simulation of virtual seaweed. The morphology of virtual seaweed is modeled by Lindenmayer system. Then, two physical properties, which are adhesiveness and tear, are artificially introduced into this model. Physics engine is adopted to realize its physical motion. A fluid environment is constructed by the Lattice Boltzmann method. The method calculates time evolution of particle distribution to simulate fluid motion. The motion of virtual seaweed is acquired by moving in the environment. In order to find the twining conditions and the way of avoiding it, the simulation is executed by altering the environment. We ascertained that the virtual seaweed behavior has the close relationship with the water flow.
• 観光情報学におけるバックグラウンドコンピューティングのすすめ〜コンピュータは控えめがいい〜

  山本 雅人

  観光情報学会誌「観光と情報」 観光情報学会 9 (1) 59 - 63 1349-919X 2013 [Refereed][Not invited]
  
• 人工生物の群れ行動のモデリングとその行動獲得

  古川 正志, 岩館, 健司, 鈴木, 育男, 山本, 雅人, 渡辺 美知子

  計測と制御 52 (3) 246 - 251 2013 [Refereed][Not invited]
  
• THE HYBRID APPROACH OF LCO AND SA TO SOLVE JOB-SHOP SCHEDULING PROBLEM

  Yasumasa Tamura, Ikuo Suzuki, Masahito Yamamoto, Masashi Furukawa

  PROCEEDINGS OF THE ASME/ISCIE INTERNATIONAL SYMPOSIUM ON FLEXIBLE AUTOMATION, ISFA 2012 26 (4) 337 - 344 2013 [Refereed][Not invited]
   

  A Job-shop Scheduling Problem (JSP) is one of the combinatorial optimization problems. JSP appears as a basic scheduling problem in many situations of a manufacturing system and many methods for JSP have been invented. This study examines two effective methods, SA and LCO, for JSP and propose a hybrid method based on them. As a result of the experiments, the proposed method can find a good solution with short computational time. And the proposed method can hold the variance of the solutions less than the fundamental methods. Summarizing this study, the proposed method can find a good solution efficiently and stably.
• JOB-SHOP SCHEDULING APPROACH TO ORDER-PICKING PROBLEM

  Yukiyasu Iwasaki, Ikuo Suzuki, Masahito Yamamoto, Masashi Furukawa

  PROCEEDINGS OF THE ASME/ISCIE INTERNATIONAL SYMPOSIUM ON FLEXIBLE AUTOMATION, ISFA 2012 26 (3) 325 - 331 2013 [Refereed][Not invited]
   

  In recent years, a large-scale logistic center plays an important role in mail-order business with Internet. In the logistic center, the efficient managing is required to deliver products to customers as soon as possible. Researches to efficiently control the logistic center have been done in the various approaches. This study proposed a new method for the order-picking problem considering worker's jamming at the same shelf in the logistic center In the proposed method, we formulate worker's scheduling in the logistic center as Job-shop Scheduling Problem and optimize this problem. Numerical experiments show the proposed method improve worker's scheduling compared with rule-based scheduling.
• Spectral Classification of Oral and Nasal Snoring Sounds Using a Support Vector Machine.

  Tsuyoshi Mikami, Yohichiro Kojima, Kazuya Yonezawa, Masahito Yamamoto, Masashi Furukawa

  JACIII 17 (4) 611 - 621 2013 [Refereed][Not invited]
  
• Study on evolution of the artificial flying creature controlled by neuro-evolution

  Ryosuke Ooe, Ikuo Suzuki, Masahito Yamamoto, Masashi Furukawa

  Artificial Life and Robotics 17 (3-4) 470 - 475 1433-5298 2013 [Refereed][Not invited]
   

  The objective of this study is to realize efficient learning for the high generalization ability of evolutionary artificial neural network (EANN). In order to achieve this objective, the evolutionary process of behavior acquisition is analyzed, and then an efficient evaluation function is led by the analysis. An artificial flying creature (AFC) is controlled to fly towards a given target point by EANN. The three-dimensional motion of the AFC is calculated by the physical engine PhysX and a numerical expression of the simple drag force. To evolve ANNs and to have the AFC flight suitably for given target points, particle swarm optimization optimizes parameters of ANNs. The results of evolutionary simulation show that generalization ability of ANNs does not always increase as evolution progresses, and it depends on given tasks of the AFC. It is also shown that diversity of input signals about target points, which the AFC goes through in flight, has positive correlation with generalization ability. © 2012 ISAROB.
• LEMとDSSMOのハイブリッド法によるネットワークの可視化

  川口 光, 山本, 雅人, 古川 正志

  第12回複雑系マイクロシンポジウム講演論文集 9 - 12 2013 [Not refereed][Not invited]
  
• 注文商品の共起ネットワークを用いた商品の最適配置

  南 賢一, 山本, 雅人, 古川 正志

  第12回複雑系マイクロシンポジウム講演論文集 13 - 18 2013 [Not refereed][Not invited]
  
• 人工生物の群行動獲得と複雑ネットワークに基づく解析

  家登 亮多, 山本, 雅人, 古川 正志

  第12回複雑系マイクロシンポジウム講演論文集 29 - 34 2013 [Not refereed][Not invited]
  
• ニコニコ動画におけるタグの階層構造を利用した検索結果の分類

  高橋 文彦, 山本, 雅人, 古川 正志

  第12回複雑系マイクロシンポジウム講演論文集 51 - 56 2013 [Not refereed][Not invited]
  
• 筋骨格モデルによる人工生命の行動獲得

  松林 涼平, 古川, 正志, 山本 雅人

  第12回複雑系マイクロシンポジウム講演論文集 77 - 82 2013 [Not refereed][Not invited]
  
• 画像解析による被災がれき量の推定に関する基礎研究

  山本 雅人, 古川, 正志, 高谷, 敏彦, 大内 東

  情報処理学会第75 回全国大会講演論文集 497 - 498 2013 [Not refereed][Not invited]
  
• 高密度状態における海藻個体群の移動シミュレーションとその力学的解析

  小川 純, 鈴木, 育男, 山本, 雅人, 古川 正志

  2013年度精密工学会春季大会学術講演会講演論文集 273 - 274 2013 [Not refereed][Not invited]
  
• JSPにおける局所クラスタリング組織化法を用いたリアクティブスケジューリング

  田村 康将, 鈴木, 育男, 山本, 雅人, 古川 正志

  2013年度精密工学会春季大会学術講演会講演論文集 275 - 276 2013 [Not refereed][Not invited]
  
• 時間遅れを考慮した情報伝播におけるトポロジーの影響について

  小松 琢也, 鈴木, 育男, 山本, 雅人, 古川 正志

  2013年度精密工学会春季大会学術講演会講演論文集 285 - 286 2013 [Not refereed][Not invited]
  
• 割り付けルールによる局所探索を用いたジョブショップスケジューリング問題の近似解放

  横山 想一郎, 鈴木, 育男, 山本, 雅人, 古川 正志

  2013年度精密工学会春季大会学術講演会講演論文集 公益社団法人 精密工学会 2013 291 - 292 2013 [Not refereed][Not invited]
   

  ジョブショップスケジューリング問題（JSP）とは，限られた資源を用いて複数の仕事を処理する際に，効率的なスケジュールを求める問題である．その近似解法として，スケジュールの近傍を定義することによる局所探索や，資源を利用する際の優先度をルールにより定める方法が考案されている．本研究では，部分的な割り付けルールの適用結果を局所探索における近傍と考え，割り付けルールによるJSPの局所探索方法を提案する．
• 巡回セールスマン問題に対する粒子群最適化法の拡張

  本庄 将也, 山本, 雅人, 古川 正志

  2013年度精密工学会春季大会学術講演会講演論文 295 - 296 2013 [Not refereed][Not invited]
  
• 電子掲示板におけるスレッドの分類指標の検証

  田中 航介, 鈴木, 育男, 山本, 雅人, 古川 正志

  2013年度精密工学会春季大会学術講演会講演論文 297 - 298 2013 [Not refereed][Not invited]
  
• 進化的ニューラルネットワークによる仮想ロボットの協調行動の獲得

  大江 亮介, 鈴木, 育男, 山本, 雅人, 古川 正志

  2013年度精密工学会春季大会学術講演会講演論文 299 - 300 2013 [Not refereed][Not invited]
  
• スワームモデルにおける群行動の学習と協調動作の獲得

  家登 亮多, 山本, 雅人, 古川 正志

  2013年度精密工学会北海道支部学術講演会講演論文集 63 - 64 2013 [Not refereed][Not invited]
  
• 筋骨格モデルを用いた人工カエルの跳躍行動制御

  松林 涼平, 山本, 雅人, 古川 正志

  2013年度精密工学会北海道支部学術講演会講演論文集 111 - 112 2013 [Not refereed][Not invited]
  
• 割り付けルールによるフレキシブルジョブショップ問題の解法

  横山 想一郎, 山本, 雅人, 古川 正志

  2013年度精密工学会秋季大会学術講演会講演論文集 2013 761 - 762 2013 [Not refereed][Not invited]
  
• ネットワークトポロジー上の自己組織化マップによる商品配置

  南 賢一, 山本, 雅人, 古川 正志

  2013年度精密工学会秋季大会学術講演会講演論文集 公益社団法人 精密工学会 2013 765 - 766 2013 [Not refereed][Not invited]
   

  物流センター内の各種作業の中でも，注文された商品を保管場所から取り出して梱包するピッキング作業が最もコストを要していることが知られている．本研究では，ピッキング作業を効率化するための商品配置に着目し，注文される商品同士の依存関係を表現した共起ネットワークを，商品を配置する棚と通路のネットワークトポロジー上に自己組織化マップを用いて写像することで商品配置を行う手法を提案する.
• 被災がれき量推定のための画像領域を利用した建造物の変化検出

  利根川, 凛, 山本, 雅人, 古川 正志

  2013年度精密工学会秋季大会学術講演会講演論文集 公益社団法人 精密工学会 2013 773 - 774 2013 [Not refereed][Not invited]
   

  災害時において，被災状況を把握できないことが問題となっている．大量のがれきが発生した場合，早急に輸送手段や仮置き場の手配をする必要がある．しかし，現状では被災地での被害状況の把握，被災がれき量の推定について短時間で行うことはほぼ不可能である．そこで本研究では，震災前後の航空写真の画像データから，家屋のある範囲を抽出・解析し，家屋倒壊の著しい地域を特定することで，被災地のがれき量を推定する．
• 選択型ニューラルネットワークアンサンブルによる仮想ロボットの複合的行動獲得

  大江 亮介, 鈴木, 育男, 古川, 正志, 山本 雅人

  2013年度精密工学会秋季大会学術講演会講演論文集 公益社団法人 精密工学会 2013 787 - 788 2013 [Not refereed][Not invited]
   

  選択型ニューラルネットワークを用いたアンサンブル学習により，複数の異なる行動を必要とする複合的行動の獲得を行う．仮想ロボットの運動は運動方程式を基に数値積分によって計算する．ニューラルネットワークのパラメータを進化計算により最適化し，目的とする行動を獲得する．一般的なニューラルネットワークを用いた行動獲得と比較し，選択型ニューラルネットワークアンサンブルの優位性について報告を行う．
• 複数情報の伝播に対する時間遅れの影響

  小松 琢也, 山本, 雅人, 古川 正志

  第10回ネットワーク生態学シンポジウム講演論文集 21  2013 [Not refereed][Not invited]
  
• 類似したネットワークデータの連続的可視化方法

  川口 光, 山本, 雅人, 古川 正志

  第10回ネットワーク生態学シンポジウム講演論文集 21  2013 [Not refereed][Not invited]
  
• 2部グラフによる電子掲示板のスレッド分類手法

  田中 航介, 鈴木, 育男, 山本, 雅人, 古川 正志

  第12回情報科学技術フォーラム講演論文集 181 - 182 2013 [Not refereed][Not invited]
  
• 時間変化を考慮したネットワーク可視化方法

  川口 光, 山本, 雅人, 古川 正志

  第12 回情報科学技術フォーラム講演論文集 193 - 194 2013 [Not refereed][Not invited]
  
• 割り付けルールによる局所探索を用いたジョブショップスケジューリング問題の近似解法

  横山 想一郎, 鈴木, 育男, 山本, 雅人, 古川 正志

  2013年度精密工学会春季大会学術講演会講演論文集 公益社団法人 精密工学会 2013 291 - 292 2013 [Refereed][Not invited]
   

  ジョブショップスケジューリング問題（JSP）とは，限られた資源を用いて複数の仕事を処理する際に，効率的なスケジュールを求める問題である．その近似解法として，スケジュールの近傍を定義することによる局所探索や，資源を利用する際の優先度をルールにより定める方法が考案されている．本研究では，部分的な割り付けルールの適用結果を局所探索における近傍と考え，割り付けルールによるJSPの局所探索方法を提案する．
• Tongue Morphology Analysis from the Upper Airway MRI for the Diagnosis of Obstructive Sleep Apnea

  Tsuyoshi Mikami Kazuya, Yonezawa Yohichiro, Kojima, Masahito Yamamoto, Masashi Furukawa

  Proceedings of the 35th Annual Conference of the IEEE Engineering in Medicine and Biology Society (EMBC) Japanese Society for Medical and Biological Engineering 51 3234 - 96-R-96 1347-443X 2013 [Refereed][Not invited]
  
• Attraction basin estimating GA: An adaptive and efficient technique for multimodal optimization

  Zhuoran Xu, Mikko Polojarvi, Masahito Yamamoto, Masashi Furukawa

  2013 IEEE Congress on Evolutionary Computation, CEC 2013 333 - 340 2013 [Refereed][Not invited]
   

  Multimodal optimization aims to discover all or most optima as opposed to only the best optimum. Evolutionary Algorithms provide a natural advantage in this field, because they are population based. However, Standard Evolutionary Algorithms tend to converge only to a single optimum. The radius-based niching evolutionary algorithms aim to solve this problem. However, they are criticized for the difficulty of the proper choice of the radius parameter. Detect-multimodal method does not necessitate using the radius parameter. It separates niches by detecting if two solutions are in same optimum. Although robust, the current detect-multimodal based niching method are computationally expensive. Inspired by the idea of combining radius-based niching method and detect-multimodal based niching method, we propose the Attraction Basin Estimating Genetic Algorithm (ABE) in this paper. It estimates the radius which is called attraction basin in this paper using detect-multimodal method, and use the estimated radius to separate species in the same way as radius-based method. We compare the proposed method with a detect-multimodal based method: Topological Species Conservation Algorithm. The experiments demonstrate that ABE has the similar ability to solve multimodal optimization problems as Topological Species Conservation, but significantly more efficiently. © 2013 IEEE.
• Study on Twining of Virtual Seaweed in Fluid Environment

  Jun Ogawa, Masahito Yamamoto, Ikuo Suzuki, Masashi Furukawa

  INTELLIGENT AUTONOMOUS SYSTEMS 12 , VOL 2 194 815 - + 2194-5357 2013 [Refereed][Not invited]
   

  This paper describes the twining of seaweed in fluid environment by computer simulation of virtual seaweed. The morphology of virtual seaweed is modeled by Lindenmayer system. Then, two physical properties, which are adhesiveness and tear, are artificially introduced into this model. Physics engine is adopted to realize its physical motion. A fluid environment is constructed by the Lattice Boltzmann method. The method calculates time evolution of particle distribution to simulate fluid motion. The motion of virtual seaweed is acquired by moving in the environment. In order to find the twining conditions and the way of avoiding it, the simulation is executed by altering the environment. We ascertained that the virtual seaweed behavior has the close relationship with the water flow.
• JOB-SHOP SCHEDULING APPROACH TO ORDER-PICKING PROBLEM

  Yukiyasu Iwasaki, Ikuo Suzuki, Masahito Yamamoto, Masashi Furukawa

  PROCEEDINGS OF THE ASME/ISCIE INTERNATIONAL SYMPOSIUM ON FLEXIBLE AUTOMATION, ISFA 2012 325 - 331 2013 [Refereed][Not invited]
   

  In recent years, a large-scale logistic center plays an important role in mail-order business with Internet. In the logistic center, the efficient managing is required to deliver products to customers as soon as possible. Researches to efficiently control the logistic center have been done in the various approaches. This study proposed a new method for the order-picking problem considering worker's jamming at the same shelf in the logistic center In the proposed method, we formulate worker's scheduling in the logistic center as Job-shop Scheduling Problem and optimize this problem. Numerical experiments show the proposed method improve worker's scheduling compared with rule-based scheduling.
• 仮想流体環境内における人工生物の形状と移動能力の関係

  中村 啓太, 鈴木, 育男, 山本, 雅人, 古川 正志

  精密工学会誌 公益社団法人 精密工学会 78 (12) 1069 - 1075 0912-0289 2012/12/05 [Refereed][Not invited]
   

  Morphology of an artificial creature plays an important role in the behavior acquisition of them because the behaviors strongly depend on its morphology. In this study, it is examined how the behavior differences appear when its morphology changes in the virtual fluid environment. We construct the approximate virtual fluid environment with low computing costs to simulate the behavior acquisition for them. Also we propose a simulation method for them in consideration of effects from the virtual fluid environment based on physics modeling. Results are discussed on a relation between its morphology and acquired behaviors.
• 時間遅れを考慮した情報伝播モデルの提案

  小松 琢也, 鈴木, 育男, 山本, 雅人, 古川 正志

  第13回 公益社団法人 計測自動制御学会 システムインテグレーション部門 講演論文集 230 - 235 2012/12 [Not refereed][Not invited]
  
• ニコニコ動画のタグによる動画関係の研究

  高橋 文彦, 鈴木, 育男, 山本, 雅人, 古川 正志

  第13回計測自動制御学会システムインテグレーション部門講演会 196 - 199 2012/12 [Not refereed][Not invited]
  
• Tourism Informatics:9. Information Propagation Network for 2012 Tohoku Earthquake and Tsunami on Twitter

  Masahito YAMAMOTO, Hiroya OGASAWARA, Ikuo SUZUKI, Masashi FURUKAWA

  IPSJ Magazine 一般社団法人情報処理学会 53 (11) 1184 - 1191 0447-8053 2012/10/15 [Not refereed][Not invited]
   

  2011年3月11日に発生した東日本大震災の際，携帯電話などの通信手段が途絶えた中で平常通り機能していたTwitterでは，災害情報や避難地情報などについての情報伝播が活発に行われた．本稿では，東日本大震災発生後のTwitterにおけるリツイートをベースとした情報伝播ネットワークを作成し，震災時のネットワークを分析することで，多くのユーザが関心をもち，より緊急性の高い話題の情報伝播の様子について分析する．そして，観光分野や災害時におけるTwitterでのリアルタイム情報発信の可能性について言及する．
• 共起ネットワークを用いた商品の注文データの解析

  南 賢一, 山本, 雅人, 古川 正志

  情報処理学会北海道シンポジウム講演論文集 39 - 40 2012/10 [Not refereed][Not invited]
  
• ニコニコ動画におけるタグ共起ネットワークを用いたコンテンツ抽出

  高橋 文彦, 鈴木, 育男, 山本, 雅人, 古川 正志

  情報処理学会北海道シンポジウム2012 5 - 6 2012/10 [Not refereed][Not invited]
  
• 群行動シミュレーションにおける振る舞いの観測

  家登 亮多, 鈴木, 育男, 山本, 雅人, 古川 正志

  情報処理学会北海道シンポジウム2012 153 - 156 2012/10 [Not refereed][Not invited]
  
• 人の生活時間による伝播遅れを考慮した情報伝播モデルにおける

  小松 琢也, 鈴木, 育男, 山本, 雅人, 古川 正志

  情報処理北海道シンポジウム2012 講演論文集 65 - 70 2012/10 [Not refereed][Not invited]
  
• オーダーピッキングにおける局所性鋭敏型ハッシュを用いた伝票割当問題の解法

  l, ??u

  情報処理学会北海道シンポジウム2012 45 - 48 2012/10 [Not refereed][Not invited]
  
• 異なる環境下における人工生物の最適行動の獲得

  松林 涼平, 山本, 雅人, 古川 正志

  情報処理学会北海道シンポジウム2012講演論文集 141 - 144 2012/10 [Not refereed][Not invited]
  
• ネットワークの大域的可視化におけるLEMとDSSOMの組み合わせ

  川口 光, 鈴木, 育男, 山本, 雅人, 古川 正志

  情報処理学会北海道シンポジウム２０１２講演論文集 41 - 44 2012/10 [Not refereed][Not invited]
  
• 流体中の運動計算のための物理シミュレーション環境―粒子群最適化によるダ・ビンチ型螺旋翼の形状決定―

  大江亮介, 鈴木育男, 山本雅人, 古川正志

  精密工学会誌 公益社団法人 精密工学会 78 (4) 348 - 353 0912-0289 2012/04/05 [Not refereed][Not invited]
   

  This paper describes a method of computing motion in fluid and an experiment using it. Motion of an object is computed by a physical simulation environment. It is constructed of a physical engine, which processes computation of rigid body dynamics. Computation of fluid dynamics is additionally implemented to the environment so that motion in fluid is simulated faster than other computational methods. The environment read easily the three dimensional mesh data, which is commonly used by CAD systems, then computes and visualizes motion immediately. The experiment is optimizing shapes of Leonardo da Vinci's spiral wings. Parameters of the spiral wing are optimized by a particle swarm optimization (PSO) or a sequential search so that the wing flies higher under two conditions. PSO usually find better parameters than a sequential search and do about sixty times as faster as a sequential search. The environment computes virtual motion for twenty seconds in real time of one second. The shapes given by an optimization are difference each other according to the given conditions, and proper from viewpoint of fluid dynamics.
• バッタモデルの目標高さに応じた跳躍動作の獲得

  梅村 裕太, 鈴木, 育男, 山本, 雅人, 古川 正志

  2012年度精密工学会秋季大会学術講演会講演論文集 公益社団法人 精密工学会 2012 447 - 448 2012 [Not refereed][Not invited]
   

  生物の地上での代表的な移動方法として跳躍動作が挙げられる．跳躍動作は主に障害物を飛び越えるために使われるが，空中，着地時での姿勢を考慮しなければならず，その制御法は未確立である．本研究では，物理エンジンPhysXを用いバッタモデルを仮想環境下に作成する．学習アルゴリズムのひとつであるニューロエボリューションを使い，バッタモデルに目標高さに応じた跳躍動作を獲得させ，その分析を行う．
• ジョブ割り付けルールの解析によるJSPベンチマーク問題の分類

  田村 康将, 鈴木, 育男, 山本, 雅人, 古川 正志

  日本機械学会北海道支部 第51回講演概要集 173 - 174 2012 [Not refereed][Not invited]
  
• ジョブショップスケジューリング問題に対する人工ニューラルネットワークを用いたジョブ割り付けルールの獲得

  田村 康将, 鈴木, 育男, 山本, 雅人, 古川 正志

  2012年度精密工学会秋季大会学術講演会講演論文集 公益社団法人 精密工学会 2012 459 - 460 2012 [Not refereed][Not invited]
   

  ジョブショップスケジューリング問題（JSP）に関して，これまで多くの研究がなされている．JSPでは，各ジョブの作業時間や作業の進行状況，機械上での待機時間など，数値的な特徴量が複数存在し，これらを基準としてジョブの割り付け順序を決定することが可能である．本研究では，このような特徴量を入力とし，ジョブ割り付けルールとして各ジョブの優先度を出力する人工ニューラルネットワークを進化計算によって獲得する．
• A Study on the Compose Method by Composite Neuroevolution on Cat Landing Problem

  XU ZHUORAN, 山本, 雅人, 古川 正志

  2012年度精密工学会北海道支部学術講演会講演論文集 87 - 88 2012 [Not refereed][Not invited]
  
• A Study on Falling Cat Landing Problem Using Composite Neuroevolution

  XU ZHUORAN, 山本, 雅人, 古川 正志

  2012年度精密工学会秋季大会学術講演会講演論文集 公益社団法人 精密工学会 2012 451 - 452 2012 [Not refereed][Not invited]
   

  Cat has ability to safely land in the free fall. In this research, we first construct a virtual cat robot by Physics Modeling. Then we use Composite Neuroevolution to optimize its controller. Composite Neuroevolution optimizes multiple Artificial Neural Networks which are integrated into a complete controller in a pre-defined way. On the contrast, common Neuroevolution algorithms, for example CMA-ES, NEAT, CNE, ESP, optimize one Artificial Neural Network. In our experiment, only Composite Neuroevolution can converge. The result shows the landing behavior is achieved by our method.
• 進化計算群を用いた仮想流体環境における人工生物の行動獲得とその比較

  中村 啓太, 鈴木, 育男, 山本, 雅人, 古川 正志

  2012年度精密工学会北海道支部学術講演会講演論文集 83 - 84 2012 [Not refereed][Not invited]
  
• 物流センターにおける商品配置を考慮したピッキング作業の最適化

  岩崎 幸安, 鈴木, 育男, 山本, 雅人, 古川 正志

  2012年度精密工学会秋季大会学術講演会講演論文集 公益社団法人 精密工学会 2012 461 - 462 2012 [Not refereed][Not invited]
   

  近年，物流センターのピッキング作業は顧客へより早く配送するための効率化が求められている．本研究では，作業時に発生する混雑を考慮して効率的なスケジュールを探索するため，ピッキング作業をジョブショップ型の生産システムとして応用し，混雑を回避するための商品配置方法や経路決定方法を提案する．実データに基づいた数値計算実験により，本方法の有効性や混雑状況への影響を検証する．
• 多自由度培養海藻モデルの接触回避のための水流制御

  小川 純, 鈴木, 育男, 山本, 雅人, 古川 正志

  2012年度精密工学会北海道支部学術講演会講演論文集 3 - 4 2012 [Not refereed][Not invited]
  
• ノードの特徴量とネットワーク構造差異の関係

  滝見 優太, 山本, 雅人, 古川 正志

  2012年度精密工学会北海道支部学術講演会論文集 93 - 94 2012 [Not refereed][Not invited]
  
• ノードの特徴量を考慮したネットワーク間類似度

  滝見 優太, 鈴木, 育男, 山本, 雅人, 古川 正志

  第11回情報科学技術フォーラム 81 - 82 2012 [Not refereed][Not invited]
  
• 局所エネルギー最小化法における近傍半径パラメータの効果

  辻本 陽平, 鈴木, 育男, 山本, 雅人, 古川 正志

  第11回情報科学技術フォーラム講演論文集 143 - 144 2012 [Not refereed][Not invited]
  
• クリティカルパスを考慮したジョブショップスケジューリング問題の近似解法

  横山 想一郎, 鈴木, 育男, 山本, 雅人, 古川 正志

  日本機械学会北海道支部第五十一回講演会講演概要集 51st 175 - 176 2012 [Not refereed][Not invited]
  
• 割り付けルールを用いたジョブショップスケジューリング問題の近似解法

  横山 想一郎, 鈴木, 育男, 山本, 雅人, 古川 正志

  2012年度精密工学秋季大会学術講演会講演論文集 2012 457 - 458 2012 [Not refereed][Not invited]
  
• ニューロエボリューションによる仮想ロボットの行動制御

  大江 亮介, 鈴木, 育男, 山本, 雅人, 古川 正志

  2012年度精密工学会秋季大会学術講演会講演論文集 公益社団法人 精密工学会 2012 449 - 450 2012 [Not refereed][Not invited]
   

  人工ニューラルネットワーク（ANN）と進化計算を組み合わせた手法であるニューロエボリューションによって仮想ロボットの行動制御を行う．仮想ロボットの運動は物理エンジンPhysXによって計算される．はじめに，様々な目的行動をそれぞれ独立にANNに学習させる．これらのANNを操縦者からの抽象的な命令を実行する制御装置とみなし，状況に応じていずれかのANNを選択して用いることで複雑な行動を生成する．
• 共起ネットワークを用いた電子掲示板からの情報抽出

  田中 航介, 鈴木, 育男, 山本, 雅人, 古川 正志

  第11回情報科学技術フォーラム(FIT2012)講演論文集 83 - 84 2012 [Not refereed][Not invited]
  
• ジョブショップスケジューリング問題に対するNeuro-evolutionの適用

  田村 康将, 鈴木, 育男, 山本, 雅人, 古川 正志

  第22回 インテリジェント・システム・シンポジウム 講演論文集 2012 [Not refereed][Not invited]
  
• ディスパッチングルールを用いたLCOによるJSPの近似解法

  横山 想一郎, 鈴木, 育男, 山本, 雅人, 古川 正志

  第22回インテリジェント・システム・シンポジウム講演概要集 22nd 2012 [Not refereed][Not invited]
  
• 動的近傍競合学習のしきい値による コミュニティ分割への影響

  小野寺, 大地, 鈴木, 育男, 山本, 雅人, 古川 正志

  ネットワークが創発する知能研究会(JWEIN’12)講演論文集 12013  2012 [Refereed][Not invited]
  
• 動的なインタラクションを考慮した人工生物の行動創発

  岩館 健司, 鈴木, 育男, 山本, 雅人, 古川 正志

  日本機械学会ロボティクス・メカトロニクス講演会2012 (Robomec 2012) 講演論文集 2012 [Not refereed][Not invited]
  
• 人工海藻モデルによる海藻培養環境に関する研究

  小川 純, 鈴木, 育男, 山本, 雅人, 古川 正志

  日本機械学会ロボティクス・メカトロニクス講演会2012 (Robomec 2012) 講演論文集 2012 [Not refereed][Not invited]
  
• 仮想物理環境におけるバッタモデルの歩行・跳躍動作

  梅村 裕太, 鈴木, 育男, 山本, 雅人, 古川 正志

  日本機械学会ロボティクス・メカトロニクス講演会2012 (Robomec 2012) 講演論文集 2012 [Not refereed][Not invited]
  
• 仮想流体環境におけるエネルギー効率を考慮した人工生物の行動獲得

  中村 啓太, 鈴木, 育男, 山本, 雅人, 古川 正志

  日本機械学会ロボティクス・メカトロニクス講演会2012 (Robomec 2012) 講演論文集 2012 [Not refereed][Not invited]
  
• 多目的最適化を用いた適応行動の多様性とその応用について

  米陀 佳祐, 鈴木, 育男, 山本, 雅人, 古川 正志

  日本機械学会ロボティクス・メカトロニクス講演会2012 (Robomec 2012) 講演論文集 2012 [Not refereed][Not invited]
  
• 行動獲得における目的タスクの多様性と汎化能力

  大江 亮介, 鈴木, 育男, 山本, 雅人, 古川 正志

  日本機械学会ロボティクス・メカトロニクス講演会2012 (Robomec 2012) 講演論文集 2012 [Not refereed][Not invited]
  
• 旭川市における公衆無線LAN環境の整備について

  山本 雅人, 平島, 淳嗣 ムリグン, 古川, 正志, 大内 東

  観光情報学会第9回全国大会発表概要集 54 - 55 2012 [Not refereed][Not invited]
  
• 局所エネルギー最小化法におけるパラメータの効果

  辻本 陽平, 鈴木, 育男, 山本, 雅人, 古川 正志

  2012年度精密工学会北海道支部学術講演会公演論文集 85 - 86 2012 [Not refereed][Not invited]
  
• 局所エネルギー最小化法における近傍半径パラメータの効果に関する検証

  辻本 陽平, 鈴木, 育男, 山本, 雅人, 古川 正志

  情報処理学会第74回全国大会講演論文集 一般社団法人情報処理学会 2012 (1) 415 - 416 2012 [Not refereed][Not invited]
   

  データをノードとエッジの組み合わせで表されるネットワークは,WWWや電力網,知人関係,神経網などを表現できる.ネットワーク構造の特徴を理解するために,ネットワーク可視化を行い,人間の高い認識能力を利用することで,新たな知的創出の手助けになることが期待されている.本研究では力学的手法を基にした,高速にレイアウトするネットワークの可視化手法である局所エネルギー最小化法(LEM)を用い,LEMにおける力の平衡状態に陥る状態を防ぎながらレイアウトすることを目的とする.この目的を達成するため,近傍半径パラメータを調整することを提案し,その効果を検証する.
• 模擬いびき音に見られるSAS固有の音響的特徴

  三上 剛, 小島, 洋一郎, 米澤, 一也, 山本, 雅人, 古川 正志

  医療機器学 日本医療機器学会 82 (2) 228 - 228 2012 [Refereed][Not invited]
  
• 類似ノードの特徴量を考慮したネットワーク間距離の提案

  滝見 優太, 鈴木, 育男, 山本, 雅人, 古川 正志

  第8回ネットワーク生態学シンポジウム予稿集 2012 [Not refereed][Not invited]
  
• 複合的人工ニューラルネットワークを用いた仮想飛翔ロボットの3次元追従行動

  大江 亮介, 鈴木, 育男, 山本, 雅人, 古川 正志

  2012年度精密工学会春季大会学術講演会講演論文集 2012 [Not refereed][Not invited]
  
• 大規模物流センターの混雑を考慮したピッキング作業の最適化

  岩崎 幸安, 鈴木, 育男, 山本, 雅人, 古川 正志

  2012年度精密工学会春季大会学術講演会講演論文集 2012 [Not refereed][Not invited]
  
• 仮想水中環境下における人工海藻の挙動の解析

  小川 純, 鈴木, 育男, 山本, 雅人, 古川 正志

  2012年度精密工学会春季大会学術講演会講演論文集 2012 [Not refereed][Not invited]
  
• 仮想物理環境におけるバッタモデルの地上動作に関する研究

  梅村 裕太, 鈴木, 育男, 山本, 雅人, 古川 正志

  2012年度精密工学会春季大会学術講演会講演論文集 2012 [Not refereed][Not invited]
  
• エネルギーを考慮した人工生物の形状と移動能力の関係

  中村 啓太, 鈴木, 育男, 山本, 雅人, 古川 正志

  2012年度精密工学会春季大会学術講演会講演論文集 2012 [Not refereed][Not invited]
  
• フラクタル図形を用いた階層型データの可視化

  田中 航介, 鈴木, 育男, 山本, 雅人, 古川 正志

  第11回複雑系マイクロシンポジウム講演論文集 81 - 86 2012 [Not refereed][Not invited]
  
• 信頼関係ネットワークにおける相反情報伝播モデルの提案

  小松 琢也, 鈴木, 育男, 山本, 雅人, 古川 正志

  第11回複雑系マイクロシンポジウム講演論文集 55 - 60 2012 [Not refereed][Not invited]
  
• 流体環境における海藻の絡み現象の解析

  小川 純, 鈴木, 育男, 山本, 雅人, 古川 正志

  第11回複雑系マイクロシンポジウム講演論文集 37 - 42 2012 [Not refereed][Not invited]
  
• 半順序先行関係を持つジョブショップスケジューリング問題の解法

  田村 康将, 鈴木, 育男, 山本, 雅人, 古川 正志

  第11回複雑系マイクロシンポジウム講演論文集 29 - 34 2012 [Not refereed][Not invited]
  
• 構築法を取り入れた局所クラスタリング組織化法によるTSPの解法

  横山 想一郎, 鈴木, 育男, 山本, 雅人, 古川 正志

  第11回複雑系マイクロシンポジウム講演論文集 21 - 26 2012 [Not refereed][Not invited]
  
• The hybrid approach of LCO and SA to solve job-shop scheduling problem

  Yasumasa Tamura, Ikuo Suzuki, Masahito Yamamoto, Masashi Furukawa

  ASME/ISCIE 2012 International Symposium on Flexible Automation, ISFA 2012 337 - 344 2012 [Refereed][Not invited]
   

  A Job-shop Scheduling Problem (JSP) is one of the combinatorial optimization problems. JSP appears as a basic scheduling problem in many situations of a manufacturing system and many methods for JSP have been invented. This study examines two effective methods, SA and LCO, for JSP and propose a hybrid method based on them. As a result of the experiments, the proposed method can find a good solution with short computational time. And the proposed method can hold the variance of the solutions less than the fundamental methods. Summarizing this study, the proposed method can find a good solution efficiently and stably. Copyright © 2012 by ASME.
• An SVM-based classification of oral and nasal snoring sounds with Kullback-Leibler kernel

  Tsuyoshi Mikami, Yohichiro Kojima, Kazuya Yonezawa, Masahito Yamamoto, Masashi Furukawa

  Proceedings of the SICE Annual Conference 1795 - 1797 2012 [Refereed][Not invited]
   

  Recently, numerous investigations have shown that loud habitual snoring is due to nasal obstruction and loud oral snoring is found in many sleep apnea patients. So, it is important to detect oral snoring in the earlier stage, but unfortunately we cannot know our own sleep condition. For such purpose, we adopt a Support Vector Machine (SVM) classifier with Kullback-Leibler (KL) kernel so as to classify oral and nasal snoring sounds based on the spectral properties, and compare it with the other kernel functions. © 2012 SICE.
• 流体中の運動計算のための物理シミュレーション環境ー粒子群最適化によるダ・ヴィンチ型螺旋翼の形状決定ー

  大江 亮介, 鈴木, 育男, 山本, 雅人, 古川 正志

  精密工学会誌 公益社団法人 精密工学会 78 (4) 348 - 353 0912-0289 2012 [Refereed][Not invited]
   

  This paper describes a method of computing motion in fluid and an experiment using it. Motion of an object is computed by a physical simulation environment. It is constructed of a physical engine, which processes computation of rigid body dynamics. Computation of fluid dynamics is additionally implemented to the environment so that motion in fluid is simulated faster than other computational methods. The environment read easily the three dimensional mesh data, which is commonly used by CAD systems, then computes and visualizes motion immediately. The experiment is optimizing shapes of Leonardo da Vinci's spiral wings. Parameters of the spiral wing are optimized by a particle swarm optimization (PSO) or a sequential search so that the wing flies higher under two conditions. PSO usually find better parameters than a sequential search and do about sixty times as faster as a sequential search. The environment computes virtual motion for twenty seconds in real time of one second. The shapes given by an optimization are difference each other according to the given conditions, and proper from viewpoint of fluid dynamics.
• Classification of oral/nasal simulated snores based on the acoustic properties

  Tsuyoshi Mikami, Yohichiro Kojima, Kazuya Yonezawa, Masahito Yamamato, Masashi Furukawa

  Journal of Biomechanical Science and Engineering 7 (4) 433 - 448 1880-9863 2012 [Refereed][Not invited]
   

  Snoring was once regarded as an indication of good sleep, but recently it has been known to be one of the symptoms which indicate sleep disordered breathing such as sleep apnea syndrome. Especially, loud snoring caused by oral breathing during sleep is often found in many apnea/hypopnea patients. Thus, it is important to detect oral snoring for medical treatment in the earlier stage, but we cannot know our own snoring. This paper describes a method to detect oral snoring by extracting the acoustic properties of snoring sounds. According to the FFT amplitude spectra, nasal snoring sounds consist of only lower frequency components less than 500Hz, whereas oral snoring sounds consist of unique intensity peaks at 1kHz and lower frequency components less than 500Hz as well. According to the bibliographical point of view, such lower frequency components indicate the palatal snoring, and the intensity peak at around 1kHz indicates the tongue base snoring. Therefore, it is obvious that nasal snoring sounds can be regarded as simple palatal snoring whereas oral snoring sounds are a mixture of palatal and tongue base snoring sounds. So, we focused on the fundamental frequency and maximum of the amplitude spectrum in a specific band. In this paper, the Harmonic Product Spectrum (HPS) method is used for estimating the fundamental frequency and the k-Nearest Neighbor method is adopted for classifying oral/nasal snoring sounds. As a result, over 89% of snoring sounds are successfully classified under the four kinds of cross validation evaluations. © 2012 by JSME.
• Automatic classification of oral/nasal snoring sounds based on the acoustic properties.

  Tsuyoshi Mikami, Yohichiro Kojima, Masahito Yamamoto, Masashi Furukawa

  Proceedings of The 37th IEEE International Conference on Acoustics Speech (and Signal Processing (ICASSP)) 609 - 612 2012 [Refereed][Not invited]
  
• Analysis of Neural Network of C.elegans by Converting into Bipartite Network.

  Keiu Harada, Ikuo Suzuki, Masahito Yamamoto, Masashi Furukawa

  IJALR 3 (1) 10 - 21 2012 [Refereed][Not invited]
  
• Conflicting Information Propagation Model in Trust Network

  Takuya Komatsu, Masahito Yamamoto, Ikuo Suzuki, Masashi Furukawa

  6TH INTERNATIONAL CONFERENCE ON SOFT COMPUTING AND INTELLIGENT SYSTEMS, AND THE 13TH INTERNATIONAL SYMPOSIUM ON ADVANCED INTELLIGENT SYSTEMS 1833 - 1838 2377-6870 2012 [Refereed][Not invited]
   

  This study proposes an information propagation simulation model, which can deal with two conflicting information (A, (A) over bar). We examine how "<(A)overbar>" can restrain from propagating conflicting information " A " on the complex network N by use of this model. Simulations show that (1) choosing a node with the high order number as a source node to disseminate the information " (A) over bar " can restrain from propagating the conflicting information " A ", (2) dispatching the information " (A) over bar " as soon as possible after propagating the conflicting information " A " can restrain from propagating the conflicting information " A ", and (3) a restraining ratio of the number of nodes that hold " (A) over bar " to the number of nodes that hold " A " after spreading the information " A " in nodes that exist father than the average shortest path converges to the certain small number.
• Control of water flow to avoid twining of artificial seaweed

  J. Ogawa, I. Suzuki, M. Yamamoto, M. Furukawa

  PROCEEDINGS OF THE SEVENTEENTH INTERNATIONAL SYMPOSIUM ON ARTIFICIAL LIFE AND ROBOTICS (AROB 17TH '12) 17 (4) 654 - 657 2012 [Refereed][Not invited]
   

  This study presents a control method for a water flow to avoid seaweed twining in a cultivation pool. The water flow in the pool is modeled by the lattice Boltzmann method (LBM). Morphology of the seaweed is determined by L-system. Physics Modeling (PM) represents its physical model. Three physical properties, gradual collision, adhesiveness, and tear phenomenon for the seaweed are artificially introduced into simulation. Motion of the seaweed is examined in the virtual underwater pool by PM simulation. A water flow pattern is realized by controlling particles distributed in lattices. We ascertained that some water flow pattern can avoid the seaweed twining phenomenon by changing the water flow pattern in the simulation.
• 模擬いびきに見られるSAS固有の音響的特徴

  三上剛, 小島洋一郎, 米澤一也, 山本雅人, 古川正志

  医療機器学 日本医療機器学会 82 (2) 228 - 228 1882-4978 2012 [Not refereed][Not invited]
  
• Study on evolution of the artificial flying creature controlled by neuro-evolution

  R. Ooe, I. Suzuki, M. Yamamoto, M. Furukawa

  PROCEEDINGS OF THE SEVENTEENTH INTERNATIONAL SYMPOSIUM ON ARTIFICIAL LIFE AND ROBOTICS (AROB 17TH '12) 838 - 841 2012 [Refereed][Not invited]
   

  In this paper a flight evolutionary simulation of an artificial flying creature (AFC) is described. The three-dimensional motion of the AFC is calculated by the physical engine PhysX and a numerical expression of the simple drag force. The AFC is controlled by an artificial neural network (ANN). The three-layered ANN which has nine input neurons and four output neurons is used for a simulation of the AFC. To evolve ANNs and to have the AFC flight suitably for given target points, a particle swarm optimization (PSO) optimizes parameters of ANNs. The results of evolutionary simulation show that the ability of generalization does not always increase as evolution progresses, and it depends on given tasks of the AFC. It is also shown that the number of situations which the AFC goes through has positive correlation with the ability of generalization.
• Control of water flow to avoid twining of artificial seaweed

  J. Ogawa, I. Suzuki, M. Yamamoto, M. Furukawa

  PROCEEDINGS OF THE SEVENTEENTH INTERNATIONAL SYMPOSIUM ON ARTIFICIAL LIFE AND ROBOTICS (AROB 17TH '12) 654 - 657 2012 [Refereed][Not invited]
   

  This study presents a control method for a water flow to avoid seaweed twining in a cultivation pool. The water flow in the pool is modeled by the lattice Boltzmann method (LBM). Morphology of the seaweed is determined by L-system. Physics Modeling (PM) represents its physical model. Three physical properties, gradual collision, adhesiveness, and tear phenomenon for the seaweed are artificially introduced into simulation. Motion of the seaweed is examined in the virtual underwater pool by PM simulation. A water flow pattern is realized by controlling particles distributed in lattices. We ascertained that some water flow pattern can avoid the seaweed twining phenomenon by changing the water flow pattern in the simulation.
• 行為者の属性・関係構造による行為の動的変化を考慮したネットワーク成長モデル

  小笠原, 寛弥, 鈴木, 育男, 山本, 雅人, 古川 正志

  情報処理学会論文誌 Information Processing Society of Japan (IPSJ) 52 (10)  - 2943 1882-7837 2011/10/15 [Refereed][Not invited]
   

  A doer's action is dominated by his attribute and relationship. This relation-ship makes some network structure. The analysis of the network is based on this fundamental idea. We propose a new growing network model, which consists of coupled oscillators with their attributes on the network. We regard each oscillator and network as the doer act and relationship, respectively. Each oscillator is defined by its own characteristic frequency and phase as its attribute. The oscillator's phase is determined by differences between it and other oscillators' phase, both of which are connected on the network. This feature resembles the doer's action. We examine the properties and dynamics of the proposed model.
• 複合型ビヘイビアによる円環構造弾性ロボットの自律行動獲得

  米陀 佳祐, 鈴木, 育男, 山本, 雅人, 古川 正志

  精密工学会誌 公益社団法人 精密工学会 77 (5) 476 - 482 0912-0289 2011/05/05 [Refereed][Not invited]
   

  A virtual elastic robot is proposed which has a body with multiple degrees of freedom. It is capable of fitting its body to the given surrounding environment. The intended robot is modeled by rigid objects connected by spring joints in a circular structure. Its control system manipulates spring actuators to realize elastic movements. This paper aims to acquire its control system for the robot to behave autonomously to adapt to various circumstances. A physical simulation is done to achieve given tasks for the elastic robot. The simulation result shows that the elastic robot achieve a simple locomotion task. Moreover, we conduct a learning experiment to adapt the robot to a complicated circumstance, in which an obstacle is placed. In order to allow the robot to adapt to there, we propose a composite behavior which consists of simple behaviors. The simulation results in forming a behavioral pattern of autonomous locomotion.
• 「観光と知能情報」宿泊施設の分類システムと自己評価

  山本雅人, 大内東

  人工知能学会誌 社団法人人工知能学会 26 (3) 272 - 279 0912-8085 2011/05/01 [Not refereed][Not invited]
  
• Hotel Classification System and Self-Evaluation(Tourism Informatics and Artificial Intelligence)

  Yamamoto Masahito, Ohuchi Azuma

  Journal of Japanese Society for Artificial Intelligence 社団法人人工知能学会 26 (3) 272 - 279 0912-8085 2011/05/01 [Not refereed][Not invited]
  
• Acquisition of swimming behavior on artificial creature in virtual water environment

  Keita Nakamura, Ikuo Suzuki, Masahito Yamamoto, Masashi Furukawa

  Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics) 5777 (1) 99 - 106 0302-9743 2011 [Refereed][Not invited]
   

  The environment greatly influences acquirement of the behavior on the artificial life creature (AC) and artifact object (AO). However, the conventional studies like Karl Sims' ones have not accurately considered in an environmental influence. Instead, these influences are considered by replacing them into a simple environment. In this study, we accurately model the under-water environmental influence. And we propose a simulation method for artificial creature swimming in consideration of buoyancy and water drags as a virtual water environment. As a result of simulation, we verify that it is possible for AC and AO to acquire swimming behavior in the under-water environment. Additionally we show the analysis of the acquired swimming behavior. © 2011 Springer-Verlag.
• Evolving amphibian behavior in complex environment

  Kenji Iwadate, Ikuo Suzuki, Masahito Yamamoto, Masashi Furukawa

  Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics) 5777 (1) 107 - 114 0302-9743 2011 [Refereed][Not invited]
   

  In this study, we aim to evolving autonomous virtual creatures which have complex shapes in a complex environment. We implement a basic physics law and fluid influences with a virtual environment and evolve artificial creatures in plural environments (on the ground, in the water). Each model, which is evolved in a different environment, obtains an effective moving behavior in each environment (looks like walking, and swimming). © 2011 Springer-Verlag.
• Acquisition of adaptive behavior for virtual modular robot using evolutionary computation

  Keisuke Yoneda, Ikuo Suzuki, Masahito Yamamoto, Masashi Furukawa

  Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics) 5777 (1) 181 - 188 0302-9743 2011 [Refereed][Not invited]
   

  In areas such as evolutionary robotics and artificial life, simulating artificial robots and organisms are significant challenges to acquire their proper behaviors that achieve given tasks. This study proposes Animated Robot ("Anibot"), which can behave by obeying physical laws in a virtual 3D environment. Especially, we aim to obtain a control system in evolution which makes it possible to behave "Anibot" autonomously. This paper focuses on a virtual modular robot with a flexible structure and simulating it for learning and controlling. The experimental results show that the modular robot can move toward a light source as its goal in different circumstances. In addition, we discuss an adaptive ability in the different circumstances and a motion mechanism of an obtained behavior. © 2011 Springer-Verlag.
• 結合振動子を用いたネットワーク成長のモデル化とその有効性の検証

  小笠原, 寛弥, 鈴木, 育男, 山本, 雅人, 古川 正志

  第43回計測自動制御学会北海道支部学術講演会論文集 19 - 22 2011 [Not refereed][Not invited]
  
• 結合振動子を用いたネットワーク成長モデルの提案とその評価

  小笠原, 寛弥, 鈴木, 育男, 山本, 雅人, 古川 正志

  2011年度精密工学会春季大会学術講演会講演論文集 2011 [Not refereed][Not invited]
  
• Twitterにおける東日本大震災時の情報伝搬に関する研究

  小笠原, 寛弥, 鈴木, 育男, 山本, 雅人, 古川 正志

  2011年度精密工学会北海道支部学術講演会講演論文集 91 - 92 2011 [Not refereed][Not invited]
  
• 仮想筋肉による人工生物の遊泳行動の解析

  福本 晃宏, 鈴木, 育男, 山本, 雅人, 古川 正志

  2011年度精密工学会北海道支部学術講演会講演論文集 43 - 44 2011 [Not refereed][Not invited]
  
• 弾性バネによって運動する人工生物の遊泳行動獲得

  福本 晃宏, 鈴木, 育男, 山本, 雅人, 古川 正志

  ロボティクス・メカトロニクス講演会’11(Robomec’11) 2011 [Not refereed][Not invited]
  
• 仮想水中環境における人工生物の遊泳行動獲得-仮想筋肉による運動制御-

  福本 晃宏, 鈴木, 育男, 山本, 雅人, 古川 正志

  2011年度精密工学会春季大会学術講演会講演論文集 623 - 624 2011 [Not refereed][Not invited]
  
• 仮想筋肉による人工生物の遊泳行動獲得

  福本 晃宏, 鈴木, 育男, 山本, 雅人, 古川 正志

  第3回日本ロボット学会北海道ロボット技術研究専門委員会学術講演会 47 - 49 2011 [Not refereed][Not invited]
  
• ウェブ上で構成される二部グラフのコミュニティ対応関係

  原田 恵雨, 鈴木, 育男, 山本, 雅人, 古川 正志

  第10回情報科学技術フォーラム講演論文集 第3分冊 771 - 772 2011 [Not refereed][Not invited]
  
• 有向グラフの二部グラフ化による二部コミュニティ対応関係の解析

  原田 恵雨, 鈴木, 育男, 山本, 雅人, 古川 正志

  第52回数理社会学会大会 第7回ネットワークが創発する知能研究会 145 - 149 2011 [Not refereed][Not invited]
  
• 仮想水中環境における海藻モデルの絡み現象の開発

  小川 純, 鈴木, 育男, 山本, 雅人 正志

  情報処理北海道シンポジウム2011講演論文集 173 - 176 2011 [Not refereed][Not invited]
  
• 仮想流体環境が人工生物の行動知能創発に及ぼす影響

  中村 啓太, 鈴木, 育男, 山本, 雅人, 古川 正志

  ロボティクス・メカトロニクス講演会’11(Robomec’11) 2011 [Not refereed][Not invited]
  
• 学習近傍を動的に制限したSOMを用いたコミュニティ分割手法

  小野寺, 大地, 鈴木, 育男, 山本, 雅人, 古川 正志

  情報処理北海道シンポジウム2011講演論文集 23 - 24 2011 [Not refereed][Not invited]
  
• 局所エネルギー最小化法におけるエッジクロス解消のための局所調整

  辻本 陽平, 鈴木, 育男, 山本, 雅人, 古川 正志

  情報処理北海道シンポジウム2011講演論文集 39 - 40 2011 [Not refereed][Not invited]
  
• 重み付有向グラフを用いたWebインタフェース設計のための操作ログ解析

  辻本 陽平, 鈴木, 育男, 山本, 雅人, 古川 正志

  第10回情報科学技術フォーラム講演論文集 第3分冊 769 - 770 2011 [Not refereed][Not invited]
  
• 巡回セールスマン問題に対する粒子群最適化法の一解法

  市瀬 光生, 鈴木, 育男, 山本, 雅人, 古川 正志

  2011年度精密工学会北海道支部学術講演会講演論文集 53 - 54 2011 [Not refereed][Not invited]
  
• 枝交換交叉を用いた粒子群最適化法によるTSPの解法

  市瀬 光生, 鈴木, 育男, 山本, 雅人, 古川 正志

  第23回自律分散システム・シンポジウム講演論文集 283 - 286 2011 [Not refereed][Not invited]
  
• 仮想物理環境におけるバッタモデルの姿勢制御を考慮した跳躍動作の獲得

  梅村 裕太, 鈴木, 育男, 山本, 雅人, 古川 正志

  2011年度精密工学会秋季大会学術講演会講演論文集 公益社団法人 精密工学会 2011 639 - 640 2011 [Not refereed][Not invited]
   

  跳躍動作は，踏切，空中，着地時でそれぞれ適切な連続する動作を必要とし，非常に複雑な動作である．その動作の検証や制御法の確立は，生物学，ロボット工学，CGアニメーションなど様々な分野で応用が可能である．本研究では，仮想物理環境下に跳躍モデルを作成し，連続する動作を学習で最適化することで，跳躍動作における制御法，十分な跳躍距離・高度，姿勢維持，着地動作を実現し，その有効性を検証する．
• 仮想物理環境における跳躍モデルの姿勢制御を考慮した連続跳躍動作の獲得

  梅村 裕太, 鈴木, 育男, 山本, 雅人, 古川 正志

  2011年度精密工学会北海道支部学術講演会講演論文集 45 - 46 2011 [Not refereed][Not invited]
  
• 仮想物理環境におけるバッタモデルの跳躍行動の獲得

  梅村 裕太, 鈴木, 育男, 山本, 雅人, 古川 正志

  ロボティクス・メカトロニクス講演会’11(Robomec’11) 2011 [Not refereed][Not invited]
  
• 仮想物理環境におけるバッタモデルの連続跳躍行動の獲得

  梅村 裕太, 鈴木, 育男, 山本, 雅人, 古川 正志

  第10回複雑系マイクロシンポジウム講演論文集 3 - 6 2011 [Not refereed][Not invited]
  
• 局所クラスタリング組織化法を応用した分割統治法による大規模TSPの解法

  石川 和典, 鈴木, 育男, 山本, 雅人, 古川 正志

  2011年度精密工学会北海道支部学術講演会講演論文集 57 - 58 2011 [Not refereed][Not invited]
  
• 局所クラスタリング組織化法を応用した大規模TSPの分割統治解法

  石川 和典, 鈴木, 育男, 山本, 雅人, 古川 正志

  2011年度精密工学会春季大会学術講演会講演論文集 2011 [Not refereed][Not invited]
  
• 状態遷移図を用いたWebインタフェース設計のための操作ログ解析

  辻本 陽平, 鈴木, 育男, 山本, 雅人, 古川 正志

  第10回複雑系マイクロシンポジウム公演論文集 39 - 42 2011 [Not refereed][Not invited]
  
• 非対称コストのTSPに対するLCOの適用

  横山 想一郎, 鈴木, 育男, 山本, 雅人, 古川 正志

  情報処理北海道シンポジウム2011講演論文集 2011 61 - 64 2011 [Not refereed][Not invited]
  
• 感染モデルを用いた情報伝播モデルの作成の実験

  小松 琢也, 鈴木, 育男, 山本, 雅人, 古川 正志

  情報処理北海道シンポジウム2011講演論文集 3 - 6 2011 [Not refereed][Not invited]
  
• 多様性のある人工生物の形態創発を目的とした進化の性質の解析

  萬谷 和之, 鈴木, 育男, 山本, 雅人, 古川 正志

  2011年度精密工学会秋季大会学術講演会講演論文集 公益社団法人 精密工学会 2011 651 - 652 2011 [Not refereed][Not invited]
   

  本研究では、計算機内での仮想三次元物理環境における自律行動獲得の進化シミュレーションを通して、得られた生命から進化の性質の解析を行うことを目的とする。安定な進化とは、環境に応じて適切な形態を獲得可能なことである。つまり、進化には生物の形態の多様性が重要である。そこで、形態の多様性を保持する進化シミュレーションを実現し、生物の進化に必要な性質及びプロセスを抽出する。
• 多様性のある人工生物の形態創発に関する研究

  萬谷 和之, 鈴木, 育男, 山本, 雅人, 古川 正志

  ロボティクス・メカトロニクス講演会2011 2011 [Not refereed][Not invited]
  
• 遺伝子型と表現型の関連性に着目した形態創発に関する研究

  萬谷 和之, 鈴木, 育男, 山本, 雅人, 古川 正志

  2010年度精密工学会春季大会学術講演会講演論文集 631 - 632 2011 [Not refereed][Not invited]
  
• 物流センターのピッキング作業へのJSPの適用

  岩崎 幸安, 鈴木, 育男, 山本, 雅人, 古川 正志

  情報処理北海道シンポジウム2011講演論文集 99 - 102 2011 [Not refereed][Not invited]
  
• 大規模物流センターにおける集配計画の研究

  岩崎 幸安, 鈴木, 育男, 山本, 雅人, 古川 正志

  日本機械学会2011年度年次大会講演論文集 2011 [Not refereed][Not invited]
  
• 蝶の飛行制御におけるANNの汎化能力に関する研究

  大江 亮介, 鈴木, 育男, 山本, 雅人, 古川 正志

  ロボティクス・メカトロニクス講演会’11(Robomec’11) 2011 [Not refereed][Not invited]
  
• ジョブの先行関係が半順序であるJSPの解法

  田村 康将, 鈴木, 育男, 山本, 雅人, 古川 正志

  情報処理北海道シンポジウム2011講演論文集 55 - 60 2011 [Not refereed][Not invited]
  
• 物流センターの集配計画へのジョブショップスケジューリング問題の適用

  岩崎 幸安, 鈴木, 育男, 山本, 雅人, 古川 正志

  第10回複雑系マイクロシンポジウム講演論文集 29 - 32 2011 [Not refereed][Not invited]
  
• 様々な形態的特徴を持つ人工生物に対する自律行動アニメーション生成

  岩館 健司, 鈴木, 育男, 山本, 雅人, 古川 正志

  ロボティクス・メカトロニクス講演会’11(Robomec’11) 2011 [Not refereed][Not invited]
  
• シェルピンスキーのギャスケットを用いた階層型データの可視化

  田中 航介, 鈴木, 育男, 山本, 雅人, 古川 正志

  情報処理北海道シンポジウム2011講演論文集 11 - 12 2011 [Not refereed][Not invited]
  
• ユーザのコミュニティ分割を用いたWebインタフェース設計のための操作ログ解析

  滝見 優太, 鈴木, 育男, 山本, 雅人, 古川 正志

  第10回情報科学技術フォーラム講演論文集 第3分冊 773 - 774 2011 [Not refereed][Not invited]
  
• リンク重みの増加・減衰を考慮した重み付きネットワークのネットワークモデルの提案

  滝見 優太, 鈴木, 育男, 山本, 雅人, 古川 正志

  情報処理北海道シンポジウム2011講演論文集 9 - 10 2011 [Not refereed][Not invited]
  
• ユーザのクラスタリングを用いたWebインタフェース設計のための操作ログ解析

  滝見 優太, 鈴木, 育男, 山本, 雅人, 古川 正志

  第10回複雑系マイクロシンポジウム講演論文集 43 - 47 2011 [Not refereed][Not invited]
  
• 複合型タスクに対する多自由度ロボットの自律移動行動の形成

  米陀 佳祐, 鈴木, 育男, 山本, 雅人, 古川 正志

  ロボティクス・メカトロニクス講演会2011 2011 [Not refereed][Not invited]
  
• 自律分散型 Behavior Composed による弾性ロボットの行動制御

  米陀 佳祐, 鈴木, 育男, 山本, 雅人, 古川 正志

  第23回自律分散システムシンポジウム 2011 [Not refereed][Not invited]
  
• Virtual Fluid Environment on Behavior Ability for Artificial Creature

  Keita Nakamura Ikuo Suzuki, Masahito Yamamoto, Masashi Furukawa

  Proceedings of the Eleventh European Conference on the Synthesis and Simulation of Living Systems 581 - 588 2011 [Refereed][Not invited]
  
• Emergence of Behavior Intelligence on Artificial Creature in Different Virtual Fluid Environments

  Keita Nakamura, Ikuo Suzuki, Masahito Yamamoto, Masashi Furukawa

  PROCEEDINGS OF THE SIXTEENTH INTERNATIONAL SYMPOSIUM ON ARTIFICIAL LIFE AND ROBOTICS (AROB 16TH '11) 617 - 620 2011 [Refereed][Not invited]
   

  This paper presents how the differences appear when the artificial creature, which has wings in right and left sides of the body, autonomously behaves in the air environment and in the water environment. We construct approximate fluid environments with low computing costs to simulate the behavior acquisition for artificial creature. Also, we propose a simulation method for the artificial creature in two environments. As a result of simulation, we verify that it is possible for the creature to acquire behaviors in two different virtual fluid environments. After evolution, the creature behaves effectively by using leverage fluid forces in each virtual environment.
• A Physics Modeling of Butterfly's Flight Control by GA and ANN and Its Over-evolution Problem

  R. Ooe, I. Suzuki, M. Yamamoto, M. Furukawa

  PROCEEDINGS OF THE SIXTEENTH INTERNATIONAL SYMPOSIUM ON ARTIFICIAL LIFE AND ROBOTICS (AROB 16TH '11) 613 - 616 2011 [Refereed][Not invited]
   

  We describe a simple physics model of a butterfly and an approach to its flight control by the genetic algorithm (GA) and the artificial neural network (ANN). A physics model consists of two kinetic equations which are led by a simplification of fluid force. A butterfly's flight is controlled by an ANN. The GA optimizes weights of the ANN for the suitable flight. This approach resulted in the flight which is obtained by maximizing the prepared fitness. However, the optimized ANN did not have a generality and a butterfly fell down in changing the initial height. A transition of fitness throughout processes of evolution showed that too much optimization tends to break the generality. We call this phenomenon "over-evolution". Changing conditions of experiments prevented the over-evolution.
• Behavioral Acquisition of Complicated Locomotion for Artificial Elastic Robot using Decentralized Behavior Composed

  Keisuke Yoneda Ikuo Suzuki, Masahito Yamamoto, Masashi Furukawa

  Proceedings of the 11th European Conference on Artificial Life 882 - 889 2011 [Refereed][Not invited]
  
• Acquisition of adaptive behavior for virtual modular robot using evolutionary computation

  Keisuke Yoneda, Ikuo Suzuki, Masahito Yamamoto, Masashi Furukawa

  Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics) 5777 (1) 181 - 188 0302-9743 2011 [Refereed][Not invited]
   

  In areas such as evolutionary robotics and artificial life, simulating artificial robots and organisms are significant challenges to acquire their proper behaviors that achieve given tasks. This study proposes Animated Robot ("Anibot"), which can behave by obeying physical laws in a virtual 3D environment. Especially, we aim to obtain a control system in evolution which makes it possible to behave "Anibot" autonomously. This paper focuses on a virtual modular robot with a flexible structure and simulating it for learning and controlling. The experimental results show that the modular robot can move toward a light source as its goal in different circumstances. In addition, we discuss an adaptive ability in the different circumstances and a motion mechanism of an obtained behavior. © 2011 Springer-Verlag.
• 宿泊施設の分類システムと自己評価

  山本 雅人, 大内

  人工知能学会誌 26 (3) 272 - 279 2011 [Refereed][Not invited]
  
• コミュニティの対応関係を考慮した二部モジュラリティによるコミュニティ分割

  原田 恵雨, 鈴木, 育男, 山本, 雅人, 古川 正志

  コンピュータソフトウェア 28 (1) 127 - 134 0289-6540 2011 [Refereed][Not invited]
  
• Acquisition of swimming behavior on artificial creature in virtual water environment

  Keita Nakamura, Ikuo Suzuki, Masahito Yamamoto, Masashi Furukawa

  Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics) 5777 (1) 99 - 106 0302-9743 2011 [Refereed][Not invited]
   

  The environment greatly influences acquirement of the behavior on the artificial life creature (AC) and artifact object (AO). However, the conventional studies like Karl Sims' ones have not accurately considered in an environmental influence. Instead, these influences are considered by replacing them into a simple environment. In this study, we accurately model the under-water environmental influence. And we propose a simulation method for artificial creature swimming in consideration of buoyancy and water drags as a virtual water environment. As a result of simulation, we verify that it is possible for AC and AO to acquire swimming behavior in the under-water environment. Additionally we show the analysis of the acquired swimming behavior. © 2011 Springer-Verlag.
• Behavior emergence of virtual creature living in complex environments

  Kenji Iwadate, Ikuo Suzuki, Masahito Yamamoto, Masashi Furukawa

  PROCEEDINGS OF THE SIXTEENTH INTERNATIONAL SYMPOSIUM ON ARTIFICIAL LIFE AND ROBOTICS (AROB 16TH '11) 16 (2) 621 - 624 2011 [Refereed][Not invited]
   

  This study aims at establishing a new computer aided animation method using the agent-based and physics modeling based animation. The specific problem we treat in this paper is to acquire an adaptive behavior of a virtual creature placed in a complex environment and to create the animation of its behavior automatically. The virtual creature is regarded as an autonomous agent who has sensors, actuators, and controllers. For controlling the virtual creature, ANN and CPG are adopted as the controllers. Optimization algorithm is introduced for learning the controllers. Numerical experiments proved that the virtual creature acquires effective motions (walking, swimming) to pursuit the destination, and to avoid the obstacle and other creatures.
• Evolving amphibian behavior in complex environment

  Kenji Iwadate, Ikuo Suzuki, Masahito Yamamoto, Masashi Furukawa

  Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics) 5777 (1) 107 - 114 0302-9743 2011 [Refereed][Not invited]
   

  In this study, we aim to evolving autonomous virtual creatures which have complex shapes in a complex environment. We implement a basic physics law and fluid influences with a virtual environment and evolve artificial creatures in plural environments (on the ground, in the water). Each model, which is evolved in a different environment, obtains an effective moving behavior in each environment (looks like walking, and swimming). © 2011 Springer-Verlag.
• "Behavior composed" for Artificial Flying Creature

  Masashi Furukawa, Makoto Morinaga, Ryosuke Ooe, Michiko Watanabe, Ikuo Suzuki, Masahito Yamamoto

  Journal of Advanced Computational Intelligence and Intelligent Informatics 15 (7) 838 - 845 1883-8014 2011 [Refereed][Not invited]
   

  This study proposes the concepts of "behavior simple" and "behavior composed." Behavior simple means primitive behavior, and behavior composed is a combination of behaviors simple. An artificial creature first learns some behaviors simple. Then, it learns behavior composed as a combination of behaviors simple, responding to the change of environment. This concept is applied to an Artificial Flying Creature (AFC). The AFC learns two types of flight independently: flapping and gliding. After that, it learns a sophisticated behavior by alternatively selecting these behaviors. Simulation results prove that adequate flight occurs by alternatively using flapping and gliding.
• "Behavior composed" for Artificial Flying Creature

  Masashi Furukawa, Makoto Morinaga, Ryosuke Ooe, Michiko Watanabe, Ikuo Suzuki, Masahito Yamamoto

  Journal of Advanced Computational Intelligence and Intelligent Informatics 15 (7) 838 - 845 1883-8014 2011 [Refereed][Not invited]
   

  This study proposes the concepts of "behavior simple" and "behavior composed." Behavior simple means primitive behavior, and behavior composed is a combination of behaviors simple. An artificial creature first learns some behaviors simple. Then, it learns behavior composed as a combination of behaviors simple, responding to the change of environment. This concept is applied to an Artificial Flying Creature (AFC). The AFC learns two types of flight independently: flapping and gliding. After that, it learns a sophisticated behavior by alternatively selecting these behaviors. Simulation results prove that adequate flight occurs by alternatively using flapping and gliding.
• ACQUISITION OF JUMPING BEHAVIOR ON THE ARTIFICIAL CREATURE UNDER VIRTUAL PHYSICAL ENVIRONMENT

  Yuta Umemura, Ikuo Suzuki, Masahito Yamamoto, Masashi Furukawa

  ECTA 2011/FCTA 2011: PROCEEDINGS OF THE INTERNATIONAL CONFERENCE ON EVOLUTIONARY COMPUTATION THEORY AND APPLICATIONS AND INTERNATIONAL CONFERENCE ON FUZZY COMPUTATION THEORY AND APPLICATIONS 311 - 314 2011 [Refereed][Not invited]
   

  Walking and jumping are very effective movement in a debris area. However, it is difficult to jump successively because it has a lot of difficulties (e.g. controlling the strong power at taking off and suppressing an impact at landing). This paper proposes how to acquire the successive jumping motion. We model an artificial creature like a locust under the physical virtual environment and control it by using Artificial Neural Network (ANN). In order to realize the successive jumping motion, this paper proposes a concept of "Behavior Simple (BS)" and "Behavior Composed (BC)". The concept of BC is that a complex behavior is composed of plural simple behaviors. We consider that the successive jumping is divided into three BSs, taking off, getting up and returning leg back motion. After three BSs are trained by using the Real-Coded Genetic Algorithm (RCGA) independently, BC is trained by using RCGA as well. Experiments verify that the efficient successive jumping can be acquired.
• Evolving amphibian behavior in complex environment

  Kenji Iwadate, Ikuo Suzuki, Masahito Yamamoto, Masashi Furukawa

  Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics) 5777 (1) 107 - 114 0302-9743 2011 [Not refereed][Not invited]
   

  In this study, we aim to evolving autonomous virtual creatures which have complex shapes in a complex environment. We implement a basic physics law and fluid influences with a virtual environment and evolve artificial creatures in plural environments (on the ground, in the water). Each model, which is evolved in a different environment, obtains an effective moving behavior in each environment (looks like walking, and swimming). © 2011 Springer-Verlag.
• Acquisition of Swimming Behavior on Artificial Creature in Virtual Water Environment

  In Advances in Artificial Life 99 - 106 2011 [Not refereed][Not invited]
  
• Realization of dynamic interaction of virtual creatures with neural controller

  Kenji Iwadate, Ikuo Suzuki, Masahito Yamamoto, Masashi Furukawa

  2011 IEEE/SICE International Symposium on System Integration, SII 2011 714 - 719 2011 [Refereed][Not invited]
   

  The objective of this study is to establish a new computer-aided animation method using agent-based and physics-modeling-based animation. The specific problem considered in this paper is the realization of the adaptive behavior of a virtual creature placed in a complex environment and the automatic animation of the creature's behavior. The virtual creature is regarded as an autonomous agent that has sensors, actuators, and controllers. For controlling the virtual creature, an artificial neural network and a central pattern generator are adopted as the controllers. An optimization algorithm is introduced for training the controllers. Numerical experiments prove that the virtual creature realizes effective motions (walking behavior) to reach the destination and to avoid obstacles and other creatures. © 2011 IEEE.
• Analysis of Neural Network of C.elegans by Converting into Bipartile Network

  Proceedings of the 15th Asia Pacific Symposium on Intelligent and Evolutionary Systems 97 - 102 2011 [Not refereed][Not invited]
  
• Acquisition of Locomotion for Modular Robot With Annular Shape Using Evolutionary Computation

  米陀佳祐, 鈴木育男, 山本雅人, 古川正志

  精密工学会誌(CD-ROM) 公益社団法人 精密工学会 76 (12) 1351 - 1357 1348-8716 2010/12/05 [Not refereed][Not invited]
   

  There are many studies on hardware and software experiments to control a modular robot. The modular robot consists of homogeneous or heterogeneous simple modules. A feature of them is that the modular robot behavior obtained by an each module movement is based on local communications between linked modules. This study focuses on a computer simulation for a virtual modular robot obeying physics laws. This simulation aims at achieving given tasks autonomously for the virtual modular robot in specific circumstances. Our goal is to acquire a control system in evolution for the virtual modular robot and to analyze and evaluate their behavior.
• 結合振動子を用いたネットワーク成長のモデル化

  小笠原, 寛弥, 鈴木, 育男, 山本, 雅人, 古川 正志

  第11回(社)計測自動制御学会システムインテグレーション部門講演会論文集 2060 - 2063 2010/12 [Not refereed][Not invited]
  
• 仮想水中環境における弾性バネを用いた人工生物の遊泳獲得

  福本 晃宏, 鈴木, 育男, 山本, 雅人, 古川 正志

  第11回(社)計測自動制御学会システムインテグレーション部門講演会論文集 2056 - 2059 2010/12 [Not refereed][Not invited]
  
• 同期的構造最適化により創発される振動子ネットワークの特徴解析

  岩根 慎司, 鈴木, 育男, 山本, 雅人, 古川 正志

  第11回(社)計測自動制御学会システムインテグレーション部門講演会論文集 2046 - 2049 2010/12 [Not refereed][Not invited]
  
• 人工生物のための形態創発に関する基礎研究

  萬谷 和之, 鈴木, 育男, 山本, 雅人, 古川 正志

  第11回(社)計測自動制御学会システムインテグレーション部門講演会論文集 2043 - 2045 2010/12 [Not refereed][Not invited]
  
• Solving for Large-Scale Traveling Salesman Problem with Divide-and-Conquer Strategy

  Kazunori Ishikawa Ikuo Suzuki, Masahito Yamamoto, Masashi Furukawa

  Proceedings of the Joint 5th International Conference on Soft Computing and Intelligent Systems and 11th International Symposium on Advanced Intelligent systems (SCIS & ISIS 2010) 1168 - 1173 2010/12 [Refereed][Not invited]
  
• Acquisition of Locomotion for Elastic Circular Robot by using Composite Behavior

  Keisuke Yoneda Ikuo Suzuki, Masahito Yamamoto, Masashi Furukawa

  Proceedings of the Joint 5th International Conference on Soft Computing and Intelligent Systems and 11th International Symposium on Advanced Intelligent systems (SCIS & ISIS 2010) 1162 - 1167 2010/12 [Refereed][Not invited]
  
• A Study on Visualization of Complex Networks Using DSSOM

  Ikuo Suzuki, Yasushi Iwata, Masahito Yamamoto, Masashi Furukawa

  Proceedings of the Joint 5th International Conference on Soft Computing and Intelligent Systems and 11th International Symposium on Advanced Intelligent systems (SCIS & ISIS 2010) 868 - 873 2010/12 [Refereed][Not invited]
  
• Behaivor Composed for Artificial Flying Creature

  Masashi Furukawa, Makoto Morinaga, Ryosuke Ooe Michiko Watanabe, Ikuo Suzuki, Masahito Yamamoto

  Proceeding of the Joint 5th International Conference on Soft Computing and Intelligent Systems and 11th International Symposium on Advanced Intelligent systems (SCIS & ISIS 2010) 861 - 867 2010/12 [Refereed][Not invited]
  
• 円環構造型モジュラーロボットの自律的移動行動の獲得

  米陀 佳祐, 鈴木, 育男, 山本, 雅人, 古川 正志

  精密工学会誌 公益社団法人 精密工学会 76 (12) 1351 - 1357 0912-0289 2010/12 [Refereed][Not invited]
   

  There are many studies on hardware and software experiments to control a modular robot. The modular robot consists of homogeneous or heterogeneous simple modules. A feature of them is that the modular robot behavior obtained by an each module movement is based on local communications between linked modules. This study focuses on a computer simulation for a virtual modular robot obeying physics laws. This simulation aims at achieving given tasks autonomously for the virtual modular robot in specific circumstances. Our goal is to acquire a control system in evolution for the virtual modular robot and to analyze and evaluate their behavior.
• Optimum Picking Navigation for Large-scale Logistic Center under Energy Minimization

  Makiko Takahashi Ikuo Suzuki, Masahito Yamamoto, Michiko Watanabe, Masashi Furukawa

  Proceedings of the 14th Asia Pacific Symposium on Intelligent and Evolutionary Systems (IES2010) 305 - 315 2010/11 [Refereed][Not invited]
  
• Autonomous Locomotion Control for Multi-legged Virtual Robot

  Masahito Yamamoto Kazuya, Ojiri Ikuo Suzuki, Masashi Furukawa

  Proceedings of the 14th Asia Pacific Symposium on Intelligent and Evolutionary Systems (IES2010) 206 - 212 2010/11 [Refereed][Not invited]
  
• Visualizing Complex Network by Use of Local Energy Minimization

  Masashi Furukawa Ryota, Shigeo Ikuo, Suzuki Masahito Yamamoto Michiko Watanabe

  Proceedings of the 14th Asia Pacific Symposium on Intelligent and Evolutionary Systems (IES2010) 13 - 22 2010/11 [Refereed][Not invited]
  
• Quantifying Plural Corresponding Community in Bipartite Graphs

  Keiu Harada Ikuo Suzuki, Masahito Yamamoto, Masahshi Furukawa

  Proceedings of the 14th Asia Pacific Symposium on Intelligent and Evolutionary Systems (IES2010) 3 - 12 2010/11 [Refereed][Not invited]
  
• Autonomous Animated Robots

  Masahito Yamamoto

  The Second Joint Workshop of Hokkaido University and Korea Maritime University International Journal of CAD/CAM 9 (1) 53 - 59 1598-1800 2010/11 [Refereed][Not invited]
  
• CGのための蝶モデルの提案−物理法則に基づくモデル化と自律的制御−

  大江 亮介, 鈴木, 育男, 山本, 雅人, 古川 正志

  情報処理北海道シンポジウム2010講演論文集 情報処理学会北海道支部 2010 159 - 166 2010/10 [Not refereed][Not invited]
  
• 弾性バネをアクチュエータとする人工生物の遊泳獲得実験

  福本 晃宏, 鈴木, 育男, 山本, 雅人, 古川 正志

  情報処理北海道シンポジウム2010講演論文集 情報処理学会北海道支部 2010 139 - 142 2010/10 [Not refereed][Not invited]
  
• 局所組み合わせ分割統治法による大規模TSPの解法

  石川 和典, 鈴木, 育男, 山本, 雅人, 古川 正志

  情報処理北海道シンポジウム2010講演論文集 情報処理学会北海道支部 2010 43 - 48 2010/10 [Not refereed][Not invited]
  
• 局面ネットワークを利用したHexゲーム戦略の提案

  本庄 将也, 鈴木, 育男, 山本, 雅人, 古川 正志

  情報処理北海道シンポジウム2010講演論文集 37 - 42 2010/10 [Not refereed][Not invited]
  
• TSPにおけるPSOとLCOのハイブリッド

  市瀬 光生, 鈴木, 育男, 山本, 雅人, 古川 正志

  情報処理北海道シンポジウム2010講演論文集 情報処理学会北海道支部 2010 33 - 36 2010/10 [Not refereed][Not invited]
  
• Behavior Emergence of Virtual Creature that can Live in Different Environments

  Kenji Iwadate, Ikuo Suzuki, Masahito Yamamoto, Masashi Furukawa

  Proceedings of International Conference on Advanced Mechatronics 2010 (ICAM 2010) 一般社団法人日本機械学会 2010 31 - 36 1348-8961 2010/10 [Refereed][Not invited]
   

  In this study, we aim at evolving autonomous virtual creatures which have complex shapes in a complex environment. We implement a basic physics law and fluid influences with a virtual environment and evolve artificial creatures in plural environments such as on the ground, and in the water. The model, which is evolved in a different environment, obtains effective different moving behaviors, walking and swimming in each environment.
• Emergence of Autonomous Behaviors on Elastic Circular Robot Consisting of Modular Units -Planning for a Task with Composite Behaviors-

  Keisuke Yoneda Ikuo Suzuki, Masahito Yamamoto, Masashi Furukawa

  Proceedings of International Conference on Advanced Mechatronics 2010 (ICAM 2010) 一般社団法人日本機械学会 2010 25 - 30 1348-8961 2010/10 [Refereed][Not invited]
   

  There are many studies on hardware and software experiments to control autonomous robots. We have focused the elastic robot which has a body with multiple degrees of freedom. The elastic robot consists of homogeneous or heterogeneous simple modules. A feature of them is that their behavior is obtained by an each module movement based on local communications between connected modules. A physical simulation on the computer is carried out to achieve tasks autonomously for a virtual elastic robot. Our goal is to acquire a control system in evolution to achieve a composite task in specific circumstances with and without a obstacle.
• Effect of Morphology to Swimming Ability for Artificial Creature in Under-water Environment

  Keita Nakamura Ikuo Suzuki, Masahito Yamamoto, Masashi Furukawa

  Proceedings of International Conference on Advanced Mechatronics 2010 (ICAM 2010) 一般社団法人日本機械学会 2010 19 - 24 1348-8961 2010/10 [Refereed][Not invited]
   

  Environment plays an important role of for behaviors acquisition in the field of Artificial Life (Alife) and evolving robotics. However, the conventional studies like K arl Sims' have not accurately considered influenced force by fluid. In this study, we approximately model the under-water environmental influence. And we propose a simulation method for artificial creature swimming in consideration of buoyancy and water drags as a virtual under-water environment based on the physics modeling. As a result of simulation, we verify that it is possible for artificial creature to swim like a real fish swimming behaviors in the under-water environment. Additionally we show the analysis of the acquired swimming behavior. Results are discussed on a relation between a shape of the artificial creature and an acquired swimming behavior.
• 自律的行動獲得に基づく仮想ロボットの開発

  山本 雅人, 岩館, 健司, 大江, 亮介, 鈴木, 育男, 古川 正志

  計測自動制御学会論文集 社団法人 計測自動制御学会 46 (1) 1 - 7 0453-4654 2010/10 [Refereed][Not invited]
   

  In this paper, we demonstrate a design of autonomous virtual robots and develop a design tool for autonomous virtual robots. A virtual robot can behave autonomously by using its own sensors and controllers on three-dimensional physically modeled environment. An approximate fluid environment model based on the drag force modeling is presented. The developed tool can simulate a physical environment at any time during the modeling process. A combinatorial use of neural network implementation for controllers and optimization method (genetic algorithm or particle swarm optimization) enables us to create autonomous behaviors of virtual robots.
• 新しい○○情報学 2)観光情報学

  川村秀憲, 鈴木恵二, 山本雅人, 松原仁

  情報処理 一般社団法人情報処理学会 51 (6) 642 - 648 0447-8053 2010/06/15 [Not refereed][Not invited]
   

  近年，観光はさまざまな分野で注目を集めている．団塊の世代が退職し余暇として観光に出かけているのはもちろん，日本の重要産業としても観光は存在感を増している．経済規模や関連産業も大きく広がっている．学術的な観点から見ると，観光の文化的側面や歴史についての研究はなされているが，工学的な研究対象としてはどこか避けられてきた感があった．しかし，インターネットやモバイルの普及が一巡し，情報技術がどうやって人々の幸せをプロデュースするかが重要な課題の1つとなっている今，観光について情報技術の観点から研究することの意義は深い．本稿では，観光情報学を概説するとともに国内外の研究動向について解説する．
• 2 Tourism Informatics(New Informatics)

  KAWAMURA Hidenori, SUZUKI Keiji, YAMAMOTO Masahito, MATSUBARA Hitoshi

  IPSJ Magazine 一般社団法人情報処理学会 51 (6) 642 - 648 0447-8053 2010/06/15 [Not refereed][Not invited]
   

  近年，観光はさまざまな分野で注目を集めている．団塊の世代が退職し余暇として観光に出かけているのはもちろん，日本の重要産業としても観光は存在感を増している．経済規模や関連産業も大きく広がっている．学術的な観点から見ると，観光の文化的側面や歴史についての研究はなされているが，工学的な研究対象としてはどこか避けられてきた感があった．しかし，インターネットやモバイルの普及が一巡し，情報技術がどうやって人々の幸せをプロデュースするかが重要な課題の1つとなっている今，観光について情報技術の観点から研究することの意義は深い．本稿では，観光情報学を概説するとともに国内外の研究動向について解説する．
• Animated Robotの研究−剛体モデリングツールの開発とその応用−

  岩館 健司, 米陀, 佳祐, 鈴木, 育男, 山本, 雅人, 古川 正志

  精密工学会誌 公益社団法人 精密工学会 76 (2) 232 - 237 1348-8716 2010/02/05 [Refereed][Not invited]
   

  In this decade, physics animation which realizes a realistic motion of the object has attracted the attention of researchers. However, the physics animation with animate beings which have autonomous intelligence is still in the research phase. This study aims at developing a new physics modeling software to generate behaviors for virtual creatures which have complex shapes. Developed software has functions to create physics models which have complex shapes on GUI, simulate them in real time, and generate an autonomous behavior with Artificial Neural Network. This paper describes architecture of the software and several examples of motion generations.
• Development of Virtual Robot Based on Autonomous Behavior Acquisition

  YAMAMOTO Masahito, IWADATE Kenji, OOE Ryosuke, SUZUKI Ikuo, FURUKAWA Masashi

  計測自動制御学会論文集 = Transactions of the Society of Instrument and Control Engineers 計測自動制御学会 46 (1) 1 - 7 0453-4654 2010/01/31 [Not refereed][Not invited]
   

  In this paper, we demonstrate a design of autonomous virtual robots and develop a design tool for autonomous virtual robots. A virtual robot can behave autonomously by using its own sensors and controllers on three-dimensional physically modeled environment. An approximate fluid environment model based on the drag force modeling is presented. The developed tool can simulate a physical environment at any time during the modeling process. A combinatorial use of neural network implementation for controllers and optimization method (genetic algorithm or particle swarm optimization) enables us to create autonomous behaviors of virtual robots.
• ノード特性とコミュニティ情報を考慮したシナジーテックなネットワーク成長モデル

  三好 栄次, 鈴木, 育男, 山本, 雅人, 古川 正志

  情報処理学会研究報告「数理モデル化と問題解決」(MPS-80) 2010 [Refereed][Not invited]
  
• 大規模物流センターの割り込みスケジューリングの研究−再スケジュールにかかる時間を考慮した構内物流スケジューリング−

  高橋 麻希子, 渡辺, 美知子, 鈴木, 育男, 山本, 雅人, 古川 正志

  2010年度精密工学会秋季大会学術講演会講演論文集 711 - 712 2010 [Not refereed][Not invited]
  
• 制約充足問題のための局所クラスタリング組織化法の適用

  猿島 悠輔, 鈴木, 育男, 山本, 雅人, 古川 正志

  2010年度精密工学会秋季大会学術講演会講演論文集 705 - 706 2010 [Not refereed][Not invited]
  
• 物理法則に基づく蝶モデルの飛行

  大江 亮介, 鈴木, 育男, 山本, 雅人, 古川 正志

  2010年度精密工学会秋季大会学術講演会講演論文集 699 - 700 2010 [Not refereed][Not invited]
  
• 人工生物のための形態創発可能な遺伝子表現型に関する研究

  萬谷 和之, 鈴木, 育男, 山本, 雅人, 古川 正志

  2010年度精密工学会秋季大会学術講演会講演論文集 695 - 696 2010 [Not refereed][Not invited]
  
• 物理シミュレーションによる多関節アームロボットのロバストな行動の獲得

  蜂谷 俊泰, 鈴木, 育男, 山本, 雅人, 古川 正志

  2010年度精密工学会秋季大会学術講演会講演論文集 689 - 690 2010 [Not refereed][Not invited]
  
• 弾性体を制御する人工生物による遊泳行動獲得

  福本 晃宏, 鈴木, 育男, 山本, 雅人, 古川 正志

  2010年度精密工学会秋季大会学術講演会講演論文集 685 - 686 2010 [Not refereed][Not invited]
  
• 物流センター内の商品配置最適化法の提案

  坂本 延寛, 鈴木, 育男, 山本, 雅人, 古川 正志

  2010年度精密工学会秋季大会学術講演会講演論文集 679 - 680 2010 [Not refereed][Not invited]
  
• Webタグの情報粒度を考慮したWebネットワーク構造の階層クラスタリング

  竹内 尚, 鈴木, 育男, 山本, 雅人, 古川 正志

  2010年度精密工学会北海道支部学術講演会講演論文集 精密工学会北海道支部 79 - 80 2010 [Not refereed][Not invited]
  
• LCOによる制約最適化問題への適用

  猿島 悠輔, 鈴木, 育男, 山本, 雅人, 古川 正志

  2010年度精密工学会北海道支部学術講演会講演論文集 75 - 76 2010 [Not refereed][Not invited]
  
• シミュレーションによる天井移動ロボットの行動の獲得と解析

  白石 直樹, 鈴木, 育男, 山本, 雅人, 古川 正志

  2010年度精密工学会北海道支部学術講演会講演論文集 73 - 74 2010 [Not refereed][Not invited]
  
• 物理シュミュレーションによる多関節アームロボットのタスク獲得

  蜂谷 俊泰, 鈴木, 育男, 山本, 雅人, 古川 正志

  2010年度精密工学会北海道支部学術講演会講演論文集 精密工学会北海道支部 61 - 62 2010 [Not refereed][Not invited]
  
• 抗力による蝶モデルの羽ばたき飛行解析

  大江 亮介, 鈴木, 育男, 山本, 雅人, 古川 正志

  2010年度精密工学会北海道支部学術講演会講演論文集 精密工学会北海道支部 23 - 24 2010 [Not refereed][Not invited]
  
• 風影響下におけるトンボモデルの飛翔学習

  徐 拓, 鈴木, 育男, 山本, 雅人, 古川 正志

  2010年度精密工学会北海道支部学術講演会講演論文集 精密工学会北海道支部 21 - 22 2010 [Not refereed][Not invited]
  
• 大規模TSPの局所組み合わせ部分問題最適化による大域的最適化法

  石川 和典, 鈴木, 育男, 山本, 雅人, 古川 正志

  第20回インテリジェント・システム・シンポジウム(FAN2010)講演論文集 2010 [Not refereed][Not invited]
  
• PSOとLCOのハイブリッドによるTSPの解法

  市瀬 光生, 鈴木, 育男, 山本, 雅人, 古川 正志

  第20回インテリジェント・システム・シンポジウム(FAN2010)講演論文集 2010 [Not refereed][Not invited]
  
• Webページの情報粒度を考慮したタグを利用した階層クラスタリングの生成

  竹内 尚, 鈴木, 育男, 山本, 雅人, 古川 正志

  第20回インテリジェント・システム・シンポジウム(FAN2010)講演論文集 2010 [Not refereed][Not invited]
  
• 複雑ネットワークの特徴量に基づくHexゲーム戦略の解析

  本庄 将也, 鈴木, 育男, 山本, 雅人, 古川 正志

  第9回情報技術フォーラム(FIT2010)講演論文集 429 - 430 2010 [Not refereed][Not invited]
  
• Hexゲームの局面ネットワークの解析

  本庄 将也, 鈴木, 育男, 山本, 雅人, 古川 正志

  ネットワークが創発する知能研究会(JWEIN10)講演論文集 2010 [Refereed][Not invited]
  
• 同期的ネットワーク構造最適化により創発されるネットワークの特徴解析

  岩根 慎司, 鈴木, 育男, 山本, 雅人, 古川 正志

  ネットワークが創発する知能研究会(JWEIN10)講演論文集 2010 [Refereed][Not invited]
  
• 行為者の属性・関係構造を考慮した ネットワーク成長モデルとそのダイナミクス

  小笠原, 寛弥, 鈴木, 育男, 山本, 雅人, 古川 正志

  ネットワークが創発する知能研究会(JWEIN10)講演論文集 2010 [Refereed][Not invited]
  
• 弾性体を用いた人工生物の遊泳行動獲得

  福本 晃宏, 鈴木, 育男, 山本, 雅人, 古川 正志

  ロボティクス・メカトロニクス講演会2010 (Robomec 2010) 一般社団法人日本機械学会 2010 "2P1 - G14(1)"-"2P1-G14(4)" 2010 [Not refereed][Not invited]
   

  There are many studies to control the torque of the joint about the behavior of the artificial creature. But the real creature acts by the control of the muscle. In this study, I account elastic spring as a muscle and assume it to be the actuator of the artificial creature. And I let an artificial creature get a swimming behavior in virtual underwater environment.
• 仮想水中環境下における人工生物の形状と遊泳能力の関係

  中村 啓太, 鈴木, 育男, 山本, 雅人, 古川 正志

  ロボティクス・メカトロニクス講演会2010 (Robomec 2010) 2010 [Not refereed][Not invited]
  
• 結合振動子を用いたネットワーク成長モデルとそのダイナミクス

  小笠原, 寛弥, 鈴木, 育男, 山本, 雅人, 古川 正志

  ロボティクス・メカトロニクス講演会2010 (Robomec 2010) 一般社団法人日本機械学会 2010 "2P1 - G04(1)"-"2P1-G04(4)" 2010 [Not refereed][Not invited]
   

  A new growing network model, which consists of coupled oscillators, is proposed. The network is growing up depending on two parameters, namely the coupling strength and network degree of oscillator. The criteria represented by H. Hong and M. Y. Choi is introduced into the model to make the network grow. The network feature and its growing dynamics are examined from a viewpoint of two parameters through numerical experiments. Obtained results show that the proposed model realizes some networks observed in a real world.
• 人工生物のための遺伝子表現型に関する研究

  萬谷 和之, 鈴木, 育男, 山本, 雅人, 古川 正志

  ロボティクス・メカトロニクス講演会2010 (Robomec 2010) 一般社団法人日本機械学会 2010 "2P1 - F29(1)"-"2P1-F29(4)" 2010 [Not refereed][Not invited]
   

  In this paper, we aim at the generation of the complex and diverse artificial creatures, we propose the genotype of the morphology of the artificial creature and the generating method based on that genotype. The results of our experiments show our method has the diversity and the availability.
• 仮想環境内における飛行生物の羽ばたき飛行実験

  大江 亮介, 鈴木, 育男, 山本, 雅人, 古川 正志

  ロボティクス・メカトロニクス講演会2010 (Robomec 2010) 一般社団法人日本機械学会 2010 "2P1 - F27(1)"-"2P1-F27(4)" 2010 [Not refereed][Not invited]
   

  In this paper, a virtual flying creature is modeled and its flight is simulated in a virtual environment. The virtual flying creature consists of a head, a body, a tail and two wings. It mainly flaps its wings for flying, and additionally tilts its wings for changing angles of elevation. The former motion is called flapping and the latter is called feathering. The virtual environment is made up of a physical engine library, which processes the motion and collision of rigid bodies, and a drag force expressing the force from fluid. Numerical experiments show the followings; (1) A virtual flying creature can fly by the flapping, and (2) The feathering changes the way to fly.
• 振動子ネットワークの構造変化における振動子の挙動の解析

  岩根 慎司, 鈴木, 育男, 山本, 雅人, 古川 正志

  ロボティクス・メカトロニクス講演会2010 (Robomec 2010) 一般社団法人日本機械学会 2010 "2P1 - F26(1)"-"2P1-F26(4)" 2010 [Not refereed][Not invited]
   

  This paper investigates a synchronizing phenomenon of oscillators, coupled together in the form of the evolving complex network. The change in the network structure in the oscillator network considered changed of the network characteristics and distribution of natural frequency. The influence that the change in the network structure gave to the behavior of the oscillator in that case was investigated by the numerical experiments.
• 評価値基準によるLCOを用いた二次割当問題への適用

  古川 正志, 山本, 雅人, 鈴木, 育男, 猿島 悠輔

  ロボティクス・メカトロニクス講演会2010 (Robomec 2010) 一般社団法人日本機械学会 2010 "2A2 - G08(1)"-"2A2-G08(2)" 2010 [Not refereed][Not invited]
   

  Quadratic Assignment problem (QAP) is Combinatorial optimization in NP-hard. Many methods have been applied to QAP, such as a branch and bound method, genetic algorithm, simulated annealing and taboo search and local clustering organization (LCO). In these Algorithms LCO can solved QAP faster than other methods. In this study we propose new method to solve QAP using LCO and proved that it can solve QAP more the effectiveness of the proposed method.
• 分割統治型LCOによる大規模TSPの解法

  石川 和典, 鈴木, 育男, 山本, 雅人, 古川 正志

  ロボティクス・メカトロニクス講演会2010 (Robomec 2010) 一般社団法人日本機械学会 2010 "2A2 - G06(1)"-"2A2-G06(4)" 2010 [Not refereed][Not invited]
   

  The smaller the electroinc device becomes, the more the printed board becomes complex. Such a printed board requests for an NC boring machine to drill a fiw hundred thousand of holes. In order to efficiently drill holes, a drilling path must be as short as possible. This path planning is regarded as a large-scale TSP. This study proposed a new solution, which adopts LCO using "a divide and conquer strategy", for the large-scale TSP. Numerical experiments proves that the proposed method is capable of solving the large-scale TSP with practical computation time and accuracy, comparing with conventional LCO.
• 物流センターにおける集配ナビゲーション手法の提案

  坂本 延寛, 鈴木, 育男, 山本, 雅人, 古川 正志

  ロボティクス・メカトロニクス講演会2010 (Robomec 2010) 一般社団法人日本機械学会 2010 "2A2 - G03(1)"-"2A2-G03(2)" 2010 [Not refereed][Not invited]
   

  This study aims to propose the order picking navigation method in distribution center. For this purpose, we propose new solutions for two main problems, an item placement and an order batching. The objective of these problems is minimizing the order picking time. Therefore, our proposed methods optimize the item placement and order batching by using the order picking time as the fitness function. Numerical experiments using the data of the existent distribution center prove that our proposed methods improve the efficiently of order picking time.
• 大規模物流センターの割り込み再スケジュール

  高橋 麻希子, 渡辺, 美知子, 鈴木, 育男, 山本, 雅人, 古川 正志

  ロボティクス・メカトロニクス講演会2010 (Robomec 2010) 一般社団法人日本機械学会 2010 "2A2 - F28(1)"-"2A2-F28(4)" 2010 [Not refereed][Not invited]
   

  The large-scale logistic center has played an important role in the mail order and Internet dealing system. In order to ship products based on customer order papers within due days, it is requested to control the logistic center effectively. This study focuses on the order-picking problem, one of problems efficiently to control the logistic center. A new criterion "Energy Minimization" is introduced into this problem. Then, LCO (Local Clustering Optimization) is applied to solve the problems. Based on above, this study is extended to the re-scheduling when urgent interrupt orders are requested. A re-scheduling method is proposed how the urgent interrupt orders are assigned and mixed into pre-determined schedule the proposed method based on LCO as well. The influence by the urgent interrupt is examined by simulation experiments, and we prove the effectiveness of the proposed method.
• 物理モデリングによる多脚型天井移動ロボットの制御獲得

  白石 直樹, 鈴木, 育男, 山本, 雅人, 古川 正志

  ロボティクス・メカトロニクス講演会2010 (Robomec 2010) 一般社団法人日本機械学会 2010 "2A2 - F21(1)"-"2A2-F21(2)" 2010 [Not refereed][Not invited]
   

  We have studied an acquisition of ceiling control of multi-legged robot by simulation using physics modeling. In this study, we propose hanging robot model, and simulate an hanging control on some ceiling with difference projection. As a result, we present the proposed model can hang on some type ceiling.
• TSPにおけるLCOのハイブリッドに関する研究

  市瀬 光生, 鈴木, 育男, 山本, 雅人, 古川 正志

  ロボティクス・メカトロニクス講演会2010 (Robomec 2010) 一般社団法人日本機械学会 2010 "2A2 - F19(1)"-"2A2-F19(4)" 2010 [Not refereed][Not invited]
   

  In this paper, we propose LCO Hybrid solutions for TSP. LCO is fine method for TSP, but once fall in local optimal solutions, LCO cannot escape from local optimal solutions. The results of our experiments show LCO Hybrids obtain more fine solutions than original LCO.
• 物理シミュレーションによる多関節ロボットアームの手の平タスク獲得

  蜂谷 俊泰, 鈴木, 育男, 山本, 雅人, 古川 正志

  ロボティクス・メカトロニクス講演会2010 (Robomec 2010) 一般社団法人日本機械学会 2010 "2A2 - F17(1)"-"2A2-F17(4)" 2010 [Not refereed][Not invited]
   

  This study aims at an acquisition of behaviors of a multi jointed arm under the virtual physics environment. The arm is controlled by a neural network. For this purpose, weights of the neural network are optimized by genetic algorithm. We give the task that is to continue bouncing a ball on a palm to this arm, and simulate how to control this arm under the virtual physics environment. It is verified that the arm obtains a proper behaviors through the simulation.
• 円環構造型弾性ロボットの進化計算によるロコモーション形成について

  米陀 佳祐, 鈴木, 育男, 山本, 雅人, 古川 正志

  ロボティクス・メカトロニクス講演会2010 (Robomec 2010) 一般社団法人日本機械学会 2010 "2A1 - F26(1)"-"2A1-F26(4)" 2010 [Not refereed][Not invited]
   

  There are many studies on hardware and software experiments to control autonomous robots. This study has focused the elastic robot which has a body with multiple degrees of freedom. The elastic robots consist of homogeneous or heterogeneous simple modules. A feature of them is that their behavior is obtained by an each module movement based on local communications between linked modules. A physical simulation on the computer is carried out to achieve given tasks autonomously for a virtual elastic robot. Our goal is to acquire a control system in evolution and to analyze a motion mechanism for the obtained behavior.
• 1A2-F25 Is there chaos in snoring sounds?

  MIKAMI Tsuyoshi, KOJIMA Yohichiro, YAMAMOTO Masahito, FURUKAWA Masashi

  The Proceedings of JSME annual Conference on Robotics and Mechatronics (Robomec) 一般社団法人 日本機械学会 2010 (0) _1A2 - F25_1-_1A2-F25_4 2010 [Not refereed][Not invited]
   

  This paper investigates chaotic properties of snoring sounds by a correlation dimension analysis, which is generally used to verify the existence of chaos in a time series. The ultimate goal of this study is to extract useful information from the nonlinear properties of snores so as to diagnose obstructive sleep apnea. For such purpose, many researchers have examined snoring sounds by linear frequency analysis such as Fourier Transform or Linear Predictive Coding, but the chaotic properties of snores have not been clarified so far and the existence of chaos has not yet been proved also. The authors adopt Grassberger-Procaccia method to determine the correlation dimension of snore attractors quantitatively.
• Webタグの階層的クラスタリング手法の提案

  竹内 尚, 鈴木, 育男, 山本, 雅人, 古川 正志

  情報処理学会創立50周年記念(第72回)全国大会講演論文集 2 75 - 76 2010 [Not refereed][Not invited]
  
• コミニュティ構造の影響を考慮したネットワーク成長モデルの提案

  三好 栄次, 鈴木, 育男, 山本, 雅人, 古川 正志

  情報処理学会創立50周年記念(第72回)全国大会講演論文集 1 269 - 270 2010 [Not refereed][Not invited]
  
• 振動子ネットワークからみた同期現象におけるネットワーク構造の変化

  岩根 慎司, 鈴木, 育男, 山本, 雅人, 古川 正志

  情報処理学会創立50周年記念(第72回)全国大会講演論文集 1 267 - 268 2010 [Not refereed][Not invited]
  
• 局所エネルギー最小可視化によるネットワークの大域的可視化

  茂尾 亮太, 鈴木, 育男, 山本, 雅人, 古川 正志

  情報処理学会創立50周年記念(第72回)全国大会講演論文集 1 265 - 266 2010 [Not refereed][Not invited]
  
• 二次割り当て問題における局所クラスタリング組織化法の適用

  猿島 悠輔, 鈴木, 育男, 山本, 雅人, 古川 正志

  2010年度精密工学会春季大会学術講演会講演論文集 341 - 342 2010 [Not refereed][Not invited]
  
• 仮想環境内における飛行生物の行動に関する研究

  大江 亮介, 鈴木, 育男, 山本, 雅人, 古川 正志

  2010年度精密工学会春季大会学術講演会講演論文集 337 - 338 2010 [Not refereed][Not invited]
  
• 物理モデリングによる天井移動体の行動獲得

  白石 直樹, 鈴木, 育男, 山本, 雅人, 古川 正志

  2010年度精密工学会春季大会学術講演会講演論文集 331 - 332 2010 [Not refereed][Not invited]
  
• 多様な形状の人工生物の遊泳行動知能創発

  中村 啓太, 鈴木, 育男, 山本, 雅人, 古川 正志

  2010年度精密工学会春季大会学術講演会講演論文集 327 - 328 2010 [Not refereed][Not invited]
  
• 人工トンボモデルの飛翔行動の獲得

  拓 徐, 鈴木, 育男, 山本, 雅人, 古川 正志

  2010年度精密工学会春季大会学術講演会講演論文集 323 - 324 2010 [Not refereed][Not invited]
  
• 物流センターにおける商品配置を考慮した伝票割当手法の提案

  坂本 延寛, 渡辺, 美知子, 鈴木, 育男, 山本, 雅人, 古川 正志

  2010年度精密工学会春季大会学術講演会講演論文集 319 - 320 2010 [Not refereed][Not invited]
  
• 大規模物流センターの割り込みスケジューリングの研究−割り込み時刻とオーダー数に応じたリアクティブスケジューリング−

  高橋 麻希子, 鈴木, 育男, 山本, 雅人, 渡辺, 美知子, 古川 正志

  2010年度精密工学会春季大会学術講演会講演論文集 315 - 316 2010 [Not refereed][Not invited]
  
• 仮想物理環境における多関節ロボットアームのタスク獲得

  蜂谷 俊泰, 鈴木, 育男, 山本, 雅人, 古川 正志

  2010年度精密工学会春季大会学術講演会講演論文集 311 - 312 2010 [Not refereed][Not invited]
  
• Central pattern generatorによる人工生物のアニメーション生成

  岩館 健司, 鈴木, 育男, 山本, 雅人, 古川 正志

  2010年度精密工学会春季大会学術講演会講演論文集 公益社団法人 精密工学会 2010 93 - 94 2010 [Not refereed][Not invited]
   

  動物の歩行や遊泳にみられるリズムパターンを生成するモデルとしてCentral pattern generatorがロボティクス，AIの分野で注目を集めている．本研究ではCentral pattern generatorを人工生物のコントローラとして導入し，仮想物理環境内に置いた人工生物に歩行，遊泳などの様々な行動を獲得させ，この結果をアニメーションとして検証した．
• 円環構造型モジュラーロボットの移動行動獲得とモジュール拡張性に関する考察

  米陀 佳祐, 鈴木, 育男, 山本, 雅人, 古川 正志

  2010年度精密工学会春季大会学術講演会講演論文集 87 - 88 2010 [Not refereed][Not invited]
  
• 人工ニューラルネットワークによる人工生物の自律行動生成

  岩館 健司, 鈴木, 育男, 山本, 雅人, 古川 正志

  日本ロボット学会北海道ロボット技術研究専門委員会(RSJ-HRT)学術講演会講演論文集 29 - 30 2010 [Not refereed][Not invited]
  
• 仮想流体環境の提案と飛行生物のモデル化

  大江 亮介, 鈴木, 育男, 山本, 雅人, 古川 正志

  日本ロボット学会北海道ロボット技術研究専門委員会(RSJ-HRT)学術講演会講演論文集 7 - 11 2010 [Not refereed][Not invited]
  
• 円環構造型モジュラーロボットの自律行動獲得

  米陀 佳祐, 鈴木, 育男, 山本, 雅人, 古川 正志

  日本ロボット学会北海道ロボット技術研究専門委員会(RSJ-HRT)学術講演会講演論文集 5 - 6 2010 [Not refereed][Not invited]
  
• Artificial Flying Creature by Flapping

  Masashi Furukawa, Makoto Morinaga, Michiko Watanbe, Ikuo Suzuki, Masahito Yamamoto

  2010 IEEE INTERNATIONAL CONFERENCE ON SYSTEMS, MAN AND CYBERNETICS (SMC 2010) 624 - 629 1062-922X 2010 [Refereed][Not invited]
   

  This paper proposes an artificial flying creature by flapping in a virtual air environment obeying physics law. For this purpose, a concise air drag computation method is introduced. The air drag plays the role of the environment force against the creature. The motion of the creature is automatically computed by use of the physics modeling software system and visualized as an animation movie. Results show that the creature with several pair of wings can fly by flapping as "a life as it could be".
• Community Extraction by Bipartite Modularity Using Communities Correspondence

  Keiu Harada Ikuo Suzuki, Masahito Yamamoto, Masashi Furukawa

  Proceedings of SWWS10 (The 2010 International Conference on Semantic Web and Web Services) 147 - 151 2010 [Refereed][Not invited]
  
• Optimization of Vehicle Routing Problem by use of New Meta-Heuristics

  Nobuhiro Sakamoto, Michiko Watanabe Ikuo Suzuki, Masahito Yamamoto, Masashi Furukawa

  Proceedings of 2010 International Symposium on Flexible Automation (ISFA) 2010 [Refereed][Not invited]
  
• 観光情報学

  川村 秀憲, 鈴木, 恵二, 山本, 雅人, 松原 仁

  会誌「情報処理」 特集：新しい◯◯情報学 51 (6) 642 - 648 0447-8053 2010 [Refereed][Not invited]
  
• Artificial Flying Creature by Flapping

  Masashi Furukawa, Makoto Morinaga, Michiko Watanbe, Ikuo Suzuki, Masahito Yamamoto

  2010 IEEE INTERNATIONAL CONFERENCE ON SYSTEMS, MAN AND CYBERNETICS (SMC 2010) 624 - 629 1062-922X 2010 [Refereed][Not invited]
   

  This paper proposes an artificial flying creature by flapping in a virtual air environment obeying physics law. For this purpose, a concise air drag computation method is introduced. The air drag plays the role of the environment force against the creature. The motion of the creature is automatically computed by use of the physics modeling software system and visualized as an animation movie. Results show that the creature with several pair of wings can fly by flapping as "a life as it could be".
• A Study on Visualization of Complex Networks Using DSSOM

  Yasushi Iwata, Ikuo Suzuki, Masahito Yamamoto, Masashi Furukawa

  IPSJ Journal 一般社団法人情報処理学会 50 (11) 2752 - 2759 1882-7764 2009/11/15 [Not refereed][Not invited]
   

  Visualizing complex networks is a useful technology to acquire new knowledge since it allows us to overlook a whole network characteristic at a glance. In this paper, Self-Organizing Map (SOM) is adopted for visualizing the network. A conventional visualization method named Inversed-SOM (ISOM) brings us a great benefit for visualization, but it has disadvantages to distort the network unnaturally. We improve ISOM to get rid of this disadvantage and propose a new visualization method named DSSOM (Dynamically-Signaling Self-Organizing Map). Numerical experiments prove that DSSOM overcomes network distortion in visualization and that it is free from a scale size of visualization.
• A Study on Order Picking Navigation in a Large-scale Logistic Center

  三添朗宏, 古川正志, 宮脇恵理, 渡辺美知子, 鈴木育男, 山本雅人

  精密工学会誌(CD-ROM) 公益社団法人 精密工学会 75 (10) 1260 - 1264 1348-8716 2009/10/05 [Not refereed][Not invited]
   

  This study developed an efficient order picking scheduling method in a large-scale logistic center. The proposed method consists of two solutions, one focuses on the picking tour navigation problem and another focuses on the order batch generation problem. The local clustering organization (LCO) algorithm is applied to determine the picking tour navigation. Then, the heuristic batch generation algorithm is introduced based on the product order similarity. Numerical experiments proved that the proposed method improved almost 16% of the order picking efficiency, comparing with the conventional method.
• A Study on Autonomous Animated Robots: Anibots

  Masahito Yamamoto, Kenji Iwadate, Ryosuke Ooe, Ikuo Suzuki, Masashi Furukawa

  2009 11TH IEEE INTERNATIONAL CONFERENCE ON COMPUTER-AIDED DESIGN AND COMPUTER GRAPHICS, PROCEEDINGS 404 - 409 2009 [Refereed][Not invited]
   

  In this paper, we demonstrate a design of autonomous virtual creatures (called animated robots: Anibots in this paper) and develop a design tool for animated robots. An animated robot can behave autonomously by using its own sensors and controllers on three-dimensional physically modeled environment. The developed tool can enable us to execute the simulation of anibots on physical environment at any time during the modeling process. In order to simulate more realistic world, an approximate fluid environment model with low computational costs is presented. It is shown that a combinatorial use of neural network implementation for controllers and the genetic algorithm (GA) or the particle swarm optimization (PSO) is effective for emerging more realistic autonomous behaviours of animated robots.
• 観光情報学会誌にみる国内研究動向

  山本 雅人, 鈴木 育男, 古川 正志

  観光と情報 観光情報学会 5 (1) 97 - 100 1349-919X 2009 [Not refereed][Not invited]
  
• A New Solution for Vehicle Routing Problem using Local Clustering Organization

  Proceeings of the 20th National Conference of Australian Society for Operations Research & the 5th International Intelligent Logistics System Conference 83.1-83.14  2009 [Not refereed][Not invited]
  
• TIPS：その構想と開発

  精密工学会北海道支部発足50周年記念集 41 - 46 2009 [Not refereed][Not invited]
  
• A Study on Order Picking Navigation in a Large-scale Logistic Center

  MIZOE Akihiro, FURUKAWA Masashi, MIYAWAKI Eri, WATANABE Michiko, SUZUKI Ikuo, YAMAMOTO Masahito

  Journal of the Japan Society for Precision Engineering 公益社団法人 精密工学会 75 (10) 1260 - 1264 0912-0289 2009 [Not refereed][Not invited]
   

  This study developed an efficient order picking scheduling method in a large-scale logistic center. The proposed method consists of two solutions, one focuses on the picking tour navigation problem and another focuses on the order batch generation problem. The local clustering organization (LCO) algorithm is applied to determine the picking tour navigation. Then, the heuristic batch generation algorithm is introduced based on the product order similarity. Numerical experiments proved that the proposed method improved almost 16% of the order picking efficiency, comparing with the conventional method.
• Autonomous Animated Robots

  Yamamoto Masahito, Iwadate Kenji, Ooe Ryosuke, Suzuki Ikuo, Furukawa Masashi

  International Journal of CAD/CAM International Journal of CAD/CAM 9 (1) Online - 91 1598-1800 2009 [Not refereed][Not invited]
  
• Simulation and implement and verification for indoor balloon robot

  Toshihiko Takaya, Hidenori Kawamura, Masahito Yamamoto, Azuma Ohuchi

  IEEJ Transactions on Electronics, Information and Systems 一般社団法人 電気学会 129 (1) 24 - 188 1348-8155 2009 [Not refereed][Not invited]
   

  We report on cooperative control of multiple neural networks for indoor balloon robot. In our laboratory, the indoor balloon has been studied to achieve various applications. Our objective of this paper is to propose a robust controller that can adapt to mechanical accidents such as breakdown of propellers. In our proposal method, each propeller thrust is independently calculated by each small network. We confirm effectiveness of the proposed method compared to the method of calculating thrusts by a single neural network on the simulator. © 2009 The Institute of Electrical Engineers of Japan.
• Large-scale DNA memory based on the nested PCR

  Masahito Yamamoto, Satoshi Kashiwamura, Azuma Ohuchi, Masashi Furukawa

  Natural Computing 7 (3) 335 - 346 1567-7818 2008/09 [Refereed][Not invited]
   

  A DNA Memory with over 10 million (16.8 M) addresses was achieved. The data embedded into a unique address was correctly extracted through an addressing processes based on nested PCR. The limitation of the scaling-up of the proposed DNA memory is discussed by using a theoretical model based on combinatorial optimization with some experimental restrictions. The results reveal that the size of the address space of the DNA memory presented here may be close to the theoretical limit. The high-capacity DNA memory can be also used in cryptography (steganography) or DNA ink. In decoding process, multiple data with different addresses can be also simultaneously accessed by using the mixture of some address primers. © Springer Science+Business Media B.V. 2008.
• Unravel four hairpins!

  Atsushi Kameda, Masahito Yamamoto, Azuma Ohuchi, Satsuki Yaegashi, Masami Hagiya

  Natural Computing 7 (2) 287 - 298 1567-7818 2008/06 [Refereed][Not invited]
   

  DNA machines consisting of consecutive hairpins, which we have previously described, have various potential applications in DNA computation. In the present study, a 288-base DNA machine containing four consecutive hairpins was successfully constructed by ligation and PCR. PAGE and fluorescence spectroscopy experiments verified that all four hairpins were successfully opened by four opener oligomers, and that hairpin opening was dependent on the proper openers added in the correct order. Quantitative analysis of the final results by fluorescence spectroscopy indicated that all four hairpins were open in about 1/4 to 1/3 of the DNA machines. © Springer Science+Business Media B.V. 2007.
• Studies on Modeling Environment for Physics Modeling

  Keita Nakamura, Makoto Morinaga, Kenji Iwadate, Keisuke Yoneda, Ikuo Suzuki, Masahito Yamamoto, Masashi Furukawa

  Conference Abstracts of Fourth International Symposium on Adaptive Motion of Animals and Machines (AMAM2008) 2008/06 [Refereed][Not invited]
  
• Capacity Analysis of DNA Memory Based on Mathematical Model

  YAMAMOTO MASAHITO, KASHIWAMURA SATOSHI, OHUCHI AZUMA

  情報処理学会論文誌数理モデル化と応用（TOM） 一般社団法人情報処理学会 49 (4) 36 - 44 0387-5806 2008/03/15 [Not refereed][Not invited]
   

  We have developed a DNA Memory called NPMM with over 10 million (16.8M) addresses. The data embedded into a unique address was correctly extracted through addressing processes based on the nested PCR. In this paper, the addressing process of NPMM was modeled by using the combinatorial optimization problem in order to discuss the limitation of the scaling-up problem of NPMM.
• 5C-1 Network Smallworldness quantifying relations similarity between nodes

  Morioka Jun, Furukawa Masashi, Yamamoto Masahito, Suzuki Ikuo

  全国大会講演論文集 一般社団法人情報処理学会 70 (2) "2 - 27"-"2-28" 2008/03/13 [Not refereed][Not invited]
  
• Development of the Research Platform of Small Autonomous Blimp Robot

  Toshihiko Takaya, Hidenori Kawamura, Masahito Yamamoto, Azuma Ohuchi

  ELECTRONICS AND COMMUNICATIONS IN JAPAN 91 (2) 1 - 13 1942-9533 2008/02 [Refereed][Not invited]
   

  Blimp robots are an attractive form of small flight robot. because they are maintained aloft by buoyancy, are safe, require little energy and have relatively long flight times. The development of a general-purpose blimp robot research platform allowing modular installation of a variety of hardware and software components will lower the barrier to the creation of new research projects and increase project efficiency. This paper describes the development of such a general-purpose platform and the testing of its suitability for research use. Experiments performed on the platform included: (I) testing of position maintenance capabilities, and changeover from a PID control software module to a learning control module; (2) testing of the ease and effectiveness of exchanging one hardware module (a microphone) for another (a camera); (3) installation of a new hardware module (a microphone) along with an existing module (a camera); (4) testing of addition of functions and performance of a topologic map generation experiment with addition of an ultrasonic sensor. The effectiveness of information fusion combined with a layered software structure was demonstrated in the experiments, indicating that the newly developed platform will be effective in promoting research on blimp robots. (C) 2008 Wiley Periodicals, Inc. Electron Comm Jpn, 91(2): 1-13 2008; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/ecj.10025
• DNA memory with 16.8M addresses

  Masahito Yamamoto, Satoshi Kashiwamura, Azuma Ohuchi

  DNA COMPUTING 4848 99 - + 0302-9743 2008 [Refereed][Not invited]
   

  A DNA Memory with over 10 million (16.8M) addresses was achieved. The data embedded into a unique address was correctly extracted through addressing processes based on the nested PCR. The limitation of the scaling-up of the proposed DNA memory is discussed by using a theoretical model based on combinatorial optimization with some experimental restrictions. The results reveal that the size of the address space of the DNA memory presented here may be close to the theoretical limit. The high-capacity DNA memory can be also used in cryptography (steganography) or DNA ink.
• Combining randomness and a high-capacity DNA memory

  Atsushi Kameda, Satoshi Kashiwamura, Masahito Yamamoto, Azuma Ohuchi, Masami Hagiya

  DNA COMPUTING 4848 109 - + 0302-9743 2008 [Refereed][Not invited]
   

  In molecular computing, it has long been a central focus to realize robust computational processes by suppressing the randomness of molecular reactions. To this end, several methods have been developed to control hybridization reactions of DNA molecules by optimizing DNA sequences and reaction parameters. However, another direction in the field is to take advantage of molecular randomness rather than avoid it. In this paper, we show that randomness can be useful in combination with a huge-capacity molecular memory, and demonstrate its application to an existing technology - DNA ink.
• Sequence design support system for 4x4 DNA tiles

  Naoki Iimura, Masahito Yamamoto, Fumiaki Tanaka, Azuma Ohuchi

  DNA COMPUTING Springer 4848 140 - + 0302-9743 2008 [Refereed][Not invited]
   

  A DNA computation model by DNA tiles needs sequence design in order to correctly form tile structure and self-assembly. We design sequence, demonstrate biochemical experiments by a trial and error approach, and, repeatedly analyze tiles. Because no integrated sequence design system computes data that indicates properties of sequences, we must analyze designed sequences by hand and many types of software. In this paper, we develop a sequence design support system for 4 x 4 DNA tiles that analyzes and optimizes tile sequences to support sequence design. The most remarkable feature of this system is optimization based on free energy. The optimization strategy is developed so that the energy of perfect tile is the stablest.
• Control of indoor balloon robot with time constraints

  Toshihiko Takaya, Hidenori Kawamura, Masahito Yamamoto, Azuma Ohuchi

  IEEJ Transactions on Electronics, Information and Systems 128 (9) 8 - 1461 1348-8155 2008 [Refereed][Not invited]
   

  Recent studies have been mainly engaged with movements by 2 or more autonomous robots. Especially, the development of autonomous robots utilized by the industrial manufacture has been advancing. However, the extent of these researches was limited to robots moving in 3 dimensional autonomous robots, such as airplanes or helicopters. On the other hand, regarding studies on small size indoor 3 dimensional blimp robots, characteristics of entertainment robots, indoor surveillance robots, object searching robots in disaster building have been subject to investigation. However, previous studies drew the attention to the difficulties arising when the cooperative behavior of 2 or more autonomous blimp robots is strongly presented depending on changes in the experimental environment, denoting the weak points of these systems. In this paper, 2 small size autonomous blimp robots were used, and basic experiments with time constraints of behavior control were conducted, examining possible coordinated movements of 2 small size autonomous blimp robots, for the purpose of high application achievement of utility. © 2008 The Institute of Electrical Engineers of Japan.
• Learning landing control of an indoor blimp robot for self-energy recharging

  Hidenori Kawamura, Masahito Yamamoto, Toshihiko Takaya, Azuma Ohuchi

  Artificial Life and Robotics 12 (1-2) 116 - 121 1433-5298 2008 [Refereed][Not invited]
   

  We report on learning landing control for the self-energy recharging of indoor blimp robots. Indoor blimp robots have potential applications in monitoring, surveillance, and entertainment. It might be necessary for blimp robots to fly for a long time to achieve these tasks. Since blimp robots cannot have a heavy battery, it is difficult to fly for long time. Therefore, we solved this problem by developing self-energy recharging control, i.e., docking to an energy charging station. We call it landing control. We introduce a way to learn landing control to tackle an unstable flying condition. The results of experiments show the effectiveness of the landing control. © 2008 International Symposium on Artificial Life and Robotics (ISAROB).
• Sequence design support system for 4x4 DNA tiles

  Naoki Iimura, Masahito Yamamoto, Fumiaki Tanaka, Azuma Ohuchi

  DNA COMPUTING 4848 (4848) 140 - + 0302-9743 2008 [Not refereed][Not invited]
   

  A DNA computation model by DNA tiles needs sequence design in order to correctly form tile structure and self-assembly. We design sequence, demonstrate biochemical experiments by a trial and error approach, and, repeatedly analyze tiles. Because no integrated sequence design system computes data that indicates properties of sequences, we must analyze designed sequences by hand and many types of software. In this paper, we develop a sequence design support system for 4 x 4 DNA tiles that analyzes and optimizes tile sequences to support sequence design. The most remarkable feature of this system is optimization based on free energy. The optimization strategy is developed so that the energy of perfect tile is the stablest.
• DNA memory with 16.8M addresses

  Masahito Yamamoto, Satoshi Kashiwamura, Azuma Ohuchi

  DNA COMPUTING 4848 (4848) 99 - + 0302-9743 2008 [Not refereed][Not invited]
   

  A DNA Memory with over 10 million (16.8M) addresses was achieved. The data embedded into a unique address was correctly extracted through addressing processes based on the nested PCR. The limitation of the scaling-up of the proposed DNA memory is discussed by using a theoretical model based on combinatorial optimization with some experimental restrictions. The results reveal that the size of the address space of the DNA memory presented here may be close to the theoretical limit. The high-capacity DNA memory can be also used in cryptography (steganography) or DNA ink.
• Combining randomness and a high-capacity DNA memory

  Atsushi Kameda, Satoshi Kashiwamura, Masahito Yamamoto, Azuma Ohuchi, Masami Hagiya

  DNA COMPUTING 4848 (4848) 109 - + 0302-9743 2008 [Not refereed][Not invited]
   

  In molecular computing, it has long been a central focus to realize robust computational processes by suppressing the randomness of molecular reactions. To this end, several methods have been developed to control hybridization reactions of DNA molecules by optimizing DNA sequences and reaction parameters. However, another direction in the field is to take advantage of molecular randomness rather than avoid it. In this paper, we show that randomness can be useful in combination with a huge-capacity molecular memory, and demonstrate its application to an existing technology - DNA ink.
• 大規模物流センターにおけるピッキングナビゲーション法の提案

  第7回複雑系マイクロシンポジウム 27 - 30 2008 [Not refereed][Not invited]
  
• Development of Modeling Tools for Animated Robot

  Conference Abstracts of Fourth International Symposium on Adaptive Motion of Animals and Machines (AMAM2008) 165 - 166 2008 [Not refereed][Not invited]
  
• Evaluation of AGV Path Topology using Small Worlds' Characteristics

  Proceedings of Joint 4th International Conference on Soft Computing and Intelligent Systems and 9th International Symposium on advanced Intelligent Systems (SCIS & ISIS) 1870 - 1875 2008 [Not refereed][Not invited]
  
• Synchronization Effects on Clustering Coefficient Characteristics in Scale-Free Networks

  Proceedings of Joint 4th International Conference on Soft Computing and Intelligent Systems and 9th International Symposium on advanced Intelligent Systems (SCIS & ISIS) 1882 - 1887 2008 [Not refereed][Not invited]
  
• Self-Organizing Stock Assignment for Large-scale Logistic Center

  Masashi Furukawa, Yoshinobu Kajiura, Akihiro Mizoe, Michiko Watanabe, Ikuo Suzuki, Masahito Yamamoto

  IAS-10: INTELLIGENT AUTONOMOUS SYSTEMS 10 164 - 172 2008 [Not refereed][Not invited]
   

  This Study focuses on efficient management for a large-scale logistic center and proposes a new method how to assign stocked products to racks in a warehouse so as to minimize a round-up time (the maximum make-span time) to fetch ordered products. Self-organizing map (SOM), one of artificial neural networks, is employed to determine stocked products' allocation to the racks. In applying SOM, a number of order forms for rounding up the products are treated as a set of input signals and rack positions are regarded as SOM topology. Numerical simulation proves that the proposed method allow us to determine an efficient assignment of the stocked products to the racks.
• Complex Networks and Robotics

  FURUKAWA Masashi, YAMAMOTO Masato, SUZUKI Ikuo

  Journal of the Robotics Society of Japan 一般社団法人 日本ロボット学会 26 (1) 2 - 5 0289-1824 2007/12/30 [Not refereed][Not invited]
  
• Erratum: PID landing orbit motion controller for an indoor blimp robot (Artificial Life and Robotics (2006) vol. 10 (177-184) 10.1007/s10015-006-0385-9)

  Toshihiko Takaya, Hidenori Kawamura, Yoshihiro Minagawa, Masahito Yamamoto, Azuma Ohuchi

  Artificial Life and Robotics 11 (2) 227  1433-5298 2007/07 [Refereed][Not invited]
  
• Survey and comparison of European hotel classification systems

  KATALIN C.

  観光情報学会誌 「観光と情報」 観光情報学会 3 (1) 36 - 44 1349-919X 2007 [Not refereed][Not invited]
  
• Sequence Design Support System for 4x4 DNA Tiles

  Preliminary Proceedings of the 13th International Meeting on DNA Computing 270 - 278 2007 [Not refereed][Not invited]
  
• DNA Memorty with 16.8M addresses

  Preliminary Proceedings of the 13th International Meeting on DNA Computing 19 - 29 2007 [Not refereed][Not invited]
  
• A study on evaluation method in hotel classification system

  大柳 幸彦, 川村 秀憲, 山本 雅人

  観光と情報 観光情報学会 3 (1) 29 - 35 1349-919X 2007 [Not refereed][Not invited]
  
• Survey and comparison of European hotel classification systems

  KATALIN C

  観光と情報 観光情報学会 3 (1) 36 - 44 1349-919X 2007 [Not refereed][Not invited]
  
• Development of the research platform of small autonomous blimp robot

  Toshihiko Takaya, Hidenori Kawamura, Masahito Yamamoto, Azuma Ohuchi

  IEEJ Transactions on Electronics, Information and Systems 一般社団法人 電気学会 127 (9) 18 - 1429 1348-8155 2007 [Not refereed][Not invited]
   

  A blimp robot is attractive as an small flight robot and can float in the air by buoyancy and realize safe to the crash small flight with low energy and can movement for a long time compared with other flight robots with low energy and can movement for a long time compared with other flight robots. However, control of an airplane robot is difficult for the nonlinear characteristic exposed to inertia by the air flow in response to influence. Therefore, the applied research which carried out the maximum use of such in recent years a blimp robot's feature is prosperous. In this paper, we realized development of blimp robot for research which can be used general-purpose by carrying out clue division of the blimp robot body at a unit, and constituting and building for research of blimp robot, and application development. On the other hand, by developing a general-purpose blimp robot research platform, improvement in the research efficiency of many researchers can be attained, and further, research start of blimp robot becomes easy and contributes to development of research. We performed the experiments for the above-mentioned proof. 1. Checked basic keeping position performance and that various orbital operation was possible. And the unit exchange ease of software unit was checked by the experiment which exchanges the control layer of software for learning control from PID control, and carries out comparison of operation. 2. In order to check the exchange ease of hardware unit, the sensor was exchanged for the microphon from the camera, and control of operation was checked. 3. For the unit addition ease, the microphon which carries out sound detection with the picture detection with a camera was added, and control of operation was verified. 4. The unit exchange was carried out for the check of a function addition and the topological map generation experiment by addition of an ultrasonic sensor was conducted. Developed blimp robot for research mounted the exchange ease and the additional ease of a unit in hardware using an analog and digital I/F fomenting realized in the combination of the software module of a layered structure in software was performed. Consequently, an addition and exchange of a function were able to become easy and were able to realize the research platform of blimp robot.
• PID landing orbit motion controller for an indoor blimp robot

  Toshihiko Takaya, Hidenori Kawamura, Yoshihiro Minagawa, Masahito Yamamoto, Azuma Ohuchi

  Artificial Life and Robotics 10 (2) 177 - 184 1433-5298 2006/11 [Refereed][Not invited]
   

  Blimp robots are attractive as indoor flying robots because they can float in the air, land safely with low energy, and stay in motion for a long time compared with other flying robots. However, controlling blimp robots is difficult because they have nonlinear characteristics, are influenced by air streams, and can easily be influenced by inertia. Therefore, a robust and adaptive control system is needed for blimp robots. The applied research that has studied the features of indoor flying robots in recent years has prospered. Operating an indoor blimp robot for a long time is difficult because the payload is small, multiple batteries cannot be stacked, and the design of a thruster that gives freedom to the entire blimp robot is difficult. Therefore, an autonomous charge that allows operation for a long time is needed. We have developed a method of landing with orbital control of the charge point that gives autonomy to a blimp robot. The possibility of landing with orbital control is shown. © ISAROB 2006.
• Specificity of hybridization between DNA sequences based on free energy

  F Tanaka, A Kameda, M Yamamoto, A Ohuchi

  DNA COMPUTING 3892 371 - 379 0302-9743 2006 [Refereed][Not invited]
   

  We investigated the specificity of hybridization based on a minimum free energy (Delta G(min)) through gel electrophoresis analysis. The analysis, using 94 pairs of sequences with length 20, showed that sequences that hybridize each other can be separated using the constraint Delta G(min) < -14.0, but cannot be separated using the number of base pairs (BP) in the range from 9 to 18. This demonstrates that the Delta G(min) is superior to the BP in terms of the capability to separate specific from non-specific sequences. Furthermore, the comparison between sequence design based on Delta G(min) and that based on the BP, done through a computer simulation, showed that the former outperformed the latter in terms of the number of sequences designed successfully as well as the ratio of successfully designed sequences to the total number of sequences checked.
• Automatic Classification of Websites based on Keyword Extraction of Nouns.

  Takatomo Honda, Masahito Yamamoto, Azuma Ohuchi

  Information and Communication Technologies in Tourism, ENTER 2006, Proceedings of the International Conference in Lausanne, Switzerland, 2006 Springer 263 - 272 2006 [Refereed][Not invited]
  
• Analysis of Circular Tour Activity Based on GPS Log.

  Mitsuyoshi Nagao, Hidenori Kawamura, Masahito Yamamoto, Azuma Ohuchi

  Information and Communication Technologies in Tourism, ENTER 2006, Proceedings of the International Conference in Lausanne, Switzerland, 2006 Springer 87 - 98 2006 [Refereed][Not invited]
  
• Development of DNA relational database and data manipulation experiments

  Masahito Yamamoto, Yutaka Kita, Satoshi Kashiwamura, Atsushi Kameda, Azuma Ohuchi

  DNA COMPUTING 4287 418 - + 0302-9743 2006 [Refereed][Not invited]
   

  An enormous amount of data such as genomic data can be stored into DNA molecules as base sequences. DNA database is important for organizing and maintaining these data, because extracted data from DNA database can be directly manipulated by chemical reactions. In this paper, we develop a DNA relational database with a simple data model and realize a computational model (relational algebra) of data manipulation as a sequence of chemical experiments. By using the developed database, it is shown that we can execute query operations based on the contents of data (the values of attributes). Furthermore, we propose a conversion scheme of query input to a series of experiment operations.
• Sequence design for stable DNA tiles

  Naoki Iimura, Masahito Yamamoto, Fumiaki Tanaka, Atsushi Kameda, Azuma Ohuchi

  DNA COMPUTING 4287 172 - + 0302-9743 2006 [Refereed][Not invited]
   

  DNA tile nanostructures have lately attracted a lot of attention as a new calculation technique and material on the nanometer scale. In forming DNA tiles, sequences need to bond in tile conformation. Conventional work can design sequences using overlapping subsequence. In this paper, we design tile sequences based on free energy. As a result of optimization, we show that we can design tile sequences as stable as conventional tiles. Moreover, we illustrate that the tile designed by the proposed method is perhaps more stable than conventional one. This method will be useful to design many tiles when forming large scale and complex DNA nanostructures.
• Unravel four hairpins!

  Atsushi Kameda, Masahito Yamamoto, Azuma Ohuchi, Satsuki Yaegashi, Masami Hagiya

  DNA Computing 4287 381 - 392 0302-9743 2006 [Refereed][Not invited]
   

  DNA machines consisting of consecutive hairpins, which we have previously described, have various potential applications in DNA computation. In the present study, a 288-base DNA machine containing four consecutive hairpins was successfully constructed by ligation and PCR. PAGE and fluorescence spectroscopy experiments verified that all four hairpins were successfully opened by four opener oligomers, and that hairpin opening was dependent on the proper openers added in the correct order. Quantitative analysis of the final results by fluorescence spectroscopy indicated that all four hairpins were open in about 1/4 to 1/3 of the DNA machines.
• Motion control in three dimensional round system of blimp robot

  Toshihiko Takaya, Hidenori Kawamura, Yoshihiro Minagawa, Masahito Yamamoto, Azuma Ouchi

  2006 SICE-ICASE International Joint Conference 1291 - 1294 2006 [Refereed][Not invited]
   

  Blimp robots are attractive as indoor flying robots because they can float in the air, land safely with low energy, and stay in motion for a long time compared with other flying robots. However, controlling of blimp robots is difficult, because they have nonlinear characteristics, are influenced by air streams, and is easy to be influenced of inertia. Therefore a robust and adaptive control system is needed for blimp robots. The applied research that paid its attention to the feature of indoor flying robot in recent years has prospered. Operating an indoor blimp robot for a long time is difficult for the payload is small, many batteries cannot be stacked. and the design of a thruster that has freedom and the entire blimp robot. Therefore, an autonomous charge that enables operation for a long time is needed. We developed a round orbit control to the Surveillance point for an autonomous of a blimp robot. The possibility of round surveillance three dimensional orbit controls was shown. © 2006 ICASE.
• 観光インターネットディレクトリ構築に向けたWebサイトの自動分類

  本田 崇智, 山本 雅人, 大内 東

  観光と情報 観光情報学会 2 (1) 49 - 57 1349-919X 2006 [Not refereed][Not invited]
  
• DNA polymerase programmed with a hairpin DNA incorporates a multiple-instruction architecture into molecular computing

  K Komiya, K Sakamoto, A Kameda, M Yamamoto, A Ohuchi, D Kiga, S Yokoyama, M Hagiya

  BIOSYSTEMS 83 (1) 18 - 25 0303-2647 2006/01 [Refereed][Not invited]
   

  Parallelism is one of the major advantages of molecular computation. A large number of data encoded in DNA molecules can be processed simultaneously by molecular biology techniques, although only a single set of instructions has been implemented in a solution. We have developed a computing machine, called the "whiplash" machine, which is made of DNA polymerase and a hairpin DNA. This machine simulates a finite state machine, executing its own instructions encoded in the DNA moiety, and would thus be applicable to multiple-instruction operation in a solution. In the present study, we explored the feasibility of this novel type of parallelism by applying the whiplash machine in a computation of the directed Hamiltonian path problem. The possible paths in a given graph were represented with different instruction sets, which were then implemented separately by whiplash machines in a test tube. After an autonomous operation of the machines, only the machine that implemented the instruction set corresponding to the Hamiltonian path was recovered from the tube. On the basis of the efficiency of machine operation, which was experimentally determined, 10(10) different instruction sets could be implemented simultaneously in a 1-ml solution. (C) 2005 Elsevier Ireland Ltd. All rights reserved.
• Hairpin-based state machine and conformational addressing: Design and experiment

  Atsushi Kameda, Masahito Yamamoto, Hiroki Uejima, Masami Hagiya, Kensaku Sakamoto, Azuma Ohuchi

  Natural Computing 4 (2) 103 - 126 1567-7818 2005/06 [Refereed][Not invited]
   

  In this paper, we propose a new architecture for a multi-state DNA machine whose conformation of repeated hairpin structures changes sequentially in response to input oligomers. As an application of the machine, we also propose molecular memory in which the machine is used as a memory unit. Addressing in the memory is realized through state transitions of the machine. We then describe a method for designing DNA sequences of the machine, which exhaustively checks conformational changes of the machine by dividing its secondary structure into hairpin units. The method is based on the minimum free energy of the structure, the structure transition paths, and the total frequency of optimal and suboptimal structures. DNA sequences designed by the method were tested in a chemical experiment in which a machine consisting of two hairpins was actually constructed. As a result, we verified that the multi-state DNA machine realized the expected changes in its secondary structure. © Springer 2005.
• Development of an Entertainment Indoor Blimp Robot Based On Hovering Control

  KAWAMURA Hidenori, KADOTA Hisao, YAMAMOTO Masahito, TAKAYA Toshihiko, OHUCHI Azuma

  Journal of Japan Society for Fuzzy Theory and Intelligent Informatics 日本知能情報ファジィ学会 17 (2) 203 - 211 1347-7986 2005/04/15 [Not refereed][Not invited]
   

  In this paper, we report the development of the entertainment blimp robot which can make several reactive behaviors for user's appeal. The blimp robot has a wireless CCD camera and wireless microphone at the bottom of body, and rotates or goes upward/downward by trigger of user's handclap. To make variety reactions of the blimp robot, a sequence of robot behavior is generated based on the nondeterministic finite state machine. In addition, the stable flying behavior is achieved by the proposed hovering control based on grounded red circle landmarks. Throughout an experiment, we confirm that the blimp robot can fly long-term with user-interaction.
• Potential for enlarging DNA memory: the validity of experimental operations of scaled-up nested primer molecular memory

  S Kashiwamura, M Yamamoto, A Kameda, T Shiba, A Ohuchi

  BIOSYSTEMS 80 (1) 99 - 112 0303-2647 2005/04 [Refereed][Not invited]
   

  DNA is an attractive memory unit because of its immense information density. Here, we describe a memory model made of DNA, called Nested Primer Molecular Memory (NPMM). NPMM consists of many DNA strands, and each DNA strand consists of two areas: a data area and a data address area. When the address of target data is specified, only the target data can be extracted from NPMM. In this paper, we evaluate the validity of the basic operations of NPMM and then discuss the feasibility of scaled-up NPMM through some laboratory experiments. In the latter, we deal with scaled-up NPMM simulated by the Concentration Scaling method. (c) 2004 Elsevier Ireland Ltd. All rights reserved.
• Aqueous computing with DNA hairpin-based RAM

  N Takahashi, A Kameda, M Yamamoto, A Ohuchi

  DNA COMPUTING 3384 355 - 364 0302-9743 2005 [Refereed][Not invited]
   

  DNA RAM can eliminate the computational overhead of sequence design because the same RAM can be used for various computations once it is made. In this paper, we report a new method to construct RAM by using the hairpin structure of DNA, and the 4-bit RAM that we actually constructed with this method. We conducted an experiment to distinguish all 16 states of the 4-bit RAM; and another to verify our achievement of a successive writing operation. Finally, we performed aqueous computing with this 4-bit RAM.
• GPS log mining method for tourism activity analysis

  M Nagao, H Kawamura, M Yamamoto, A Ohuchi

  Soft Computing as Transdisciplinary Science and Technology 285 - 294 1615-3871 2005 [Refereed][Not invited]
   

  Recently, tourism activity analysis has been required in order to construct effective tourism policy and strategy for personal tour which became the mainstream Of Japan. In conventional tourism activity analysis, the information for analysis, i.e., tourism activity information, is collected on each tourist by using questionnaire, and then the analysis is carried out on the basis of it. However, it is difficult to realize effective tourism activity analysis in conventional method because the difficulty in collecting accurate questionnaire-based information collection has and detailed tourism activity information. In this paper, we propose a GPS log mining method in order to implement effective tourism activity analysis. GPS can automatically and continuously collect the position information where the GPS receiver exists. It is likely that an effective tourism activity analysis can be realized by extracting accurate tourism activity information from the information which is collected by GPS. We confirm the effectiveness of the proposed method through the experiments using the GPS log data collected from actual tourists in Hokkaido.
• Hidenori Kawamura, Hisao Kadota, Masahito Yamamoto, Toshihiko Takaya and Azuma Ohuchi： Motion Design for Indoor Blimp Robot with PID Controller, Journal of Robotics and Mechatronics, Vol. 17, No. 5, pp. 500-508 (2005)*

  2005 [Not refereed][Not invited]
  
• GPSログマイニングに基づく観光動態情報の獲得

  長尾 光悦, 川村 秀憲, 山本 雅人

  観光と情報 観光情報学会 1 (1) 38 - 46 1349-919X 2005 [Not refereed][Not invited]
  
• Potential for enlarging DNA memory: The validity of experimental operations of scaled-up nested primer molecular memory

  Satoshi Kashiwamura, Masahito Yamamoto, Atsushi Kameda, Toshikazu Shiba, Azuma Ohuchi

  BioSystems 80 (1) 99 - 112 0303-2647 2005 [Not refereed][Not invited]
   

  DNA is an attractive memory unit because of its immense information density. Here, we describe a memory model made of DNA, called Nested Primer Molecular Memory (NPMM). NPMM consists of many DNA strands, and each DNA strand consists of two areas: a data area and a data address area. When the address of target data is specified, only the target data can be extracted from NPMM. In this paper, we evaluate the validity of the basic operations of NPMM and then discuss the feasibility of scaled-up NPMM through some laboratory experiments. In the latter, we deal with scaled-up NPMM simulated by the Concentration Scaling method. © 2004 Elsevier Ireland Ltd. All rights reserved.
• Hisao Kadota, Hidenori Kawamura, Masahito Yamamoto, Toshihiko Takaya, and Azuma Ohuchi: PID Orbit Motion Controller for Indoor Blimp Robot, Proceedings of The 10th International Symposium on Artificial Life and Robotics, CD-ROM (2005)*

  2005 [Not refereed][Not invited]
  
• Fumiaki Tanaka, Atsushi Kameda, Masahito Yamamoto and Azuma Ohuchi： Specificity of Hybridization between DNA Sequences Based on Free Energy, Proceedings of The 11th International Meeting on DNA Computing, pp. 366-375 (2005)*

  2005 [Not refereed][Not invited]
  
• Satoshi Kashiwamura, Masahito Yamamoto, Atsushi Kameda and Azuma Ohuchi： Experimental Challenge of Scaled-up Hierarchical DNA Memory, Proceedings of The 11th International Meeting on DNA Computing, pp. 396 (2005)*

  2005 [Not refereed][Not invited]
  
• Masahito Yamamoto, Hidenori Kawamura and Azuma Ohuchi： A Location-based Search Engine for Official Web-sites, IFORS2005 (17th Triennial Conference of the International Federation of Operations Research Societies), pp. 46 (2005)*

  2005 [Not refereed][Not invited]
  
• Development of an Entertainment Indoor Blimp Robot Based On Hovering Control

  KAWAMURA Hidenori, KADOTA Hisao, YAMAMOTO Masahito, TAKAYA Toshihiko, OHUCHI Azuma

  Journal of Japan Society for Fuzzy Theory and Intelligent Informatics 日本知能情報ファジィ学会 Vol. 17 (No. 2) 203 - 211 1347-7986 2005 [Not refereed][Not invited]
   

  In this paper, we report the development of the entertainment blimp robot which can make several reactive behaviors for user's appeal. The blimp robot has a wireless CCD camera and wireless microphone at the bottom of body, and rotates or goes upward/downward by trigger of user's handclap. To make variety reactions of the blimp robot, a sequence of robot behavior is generated based on the nondeterministic finite state machine. In addition, the stable flying behavior is achieved by the proposed hovering control based on grounded red circle landmarks. Throughout an experiment, we confirm that the blimp robot can fly long-term with user-interaction.
• Fumiaki Tanaka, Atsushi Kameda, Masahito Yamamoto and Azuma Ohuchi: Design of nucleic acid sequences for DNA computing based on a thermodynamic approach, Nucleic Acids Research, Vol. 33, No. 3, pp. 903-911 (2005)*

  2005 [Not refereed][Not invited]
  
• Mitsuyoshi Nagao, Hidenori Kawamura, Masahito Yamamoto and Azuma Ohuchi： GPS Log Mining Method for Tourism Activity Analysis, Proceedings of the 4th IEEE International Workshop WSTST'05, pp. 285-294 (2005)*

  2005 [Not refereed][Not invited]
  
• 顧客主導型予約調整メカニズムによる新電子予約システムの開発

  佐藤 博信, 村上 仁, 川村 秀憲

  観光情報学会誌 観光情報学会 Vol. 1 (No. 1) 64 - 70 1349-919X 2005 [Not refereed][Not invited]
  
• Yutaka Kita, Atsushi Kameda, Masahito Yamamoto, and Azuma Ohuchi: Design of Soccer-ball-shape DNA Molecules and Preliminary Experiments in Vitro, Proceedings of The 10th International Symposium on Artificial Life and Robotics, CD-ROM (2005)*

  2005 [Not refereed][Not invited]
  
• Hidenori Kawamura, Masahito Yamamoto and Azuma Ohuchi： Multiagent Simulation of Customer-driven Reservation Adjustment Mechanism, Proceedings of the 9th Japan and Australia Joint Workshop on Intelligent and Evolutionary Systems 2005, CD-ROM (2005)*

  2005 [Not refereed][Not invited]
  
• Mitsuyoshi Nagao, Hidenori Kawamura, Masahito Yamamoto and Azuma Ohuchi： Development of Tourism Activity Analysis System Based on GPS Log Data, IFORS2005 (17th Triennial Conference of the International Federation of Operations Research Societies), pp. ・・・

  2005 [Not refereed][Not invited]
   

  Mitsuyoshi Nagao, Hidenori Kawamura, Masahito Yamamoto and Azuma Ohuchi：
  Development of Tourism Activity Analysis System Based on GPS Log Data,
  IFORS2005 (17th Triennial Conference of the International Federation of Operations Research Societies), pp. 46 (2005)*
• Koji Nishikawa, Hidenori Kawamura, Masahito Yamamoto and Azuma Ohuchi: Qualititative Analysis of Self-organizing Multiagent Interaction with Entropy and Mutual Information, Proceedings of The 10th International Symposium on Artificial Life and Robot・・・

  2005 [Not refereed][Not invited]
   

  Koji Nishikawa, Hidenori Kawamura, Masahito Yamamoto and Azuma Ohuchi:
  Qualititative Analysis of Self-organizing Multiagent Interaction with Entropy and Mutual Information,
  Proceedings of The 10th International Symposium on Artificial Life and Robotics, CD-ROM (2005)*
• Design of nucleic acid sequences for DNA computing based on a thermodynamic approach

  F Tanaka, A Kameda, M Yamamoto, A Ohuchi

  NUCLEIC ACIDS RESEARCH 33 (3) 903 - 911 0305-1048 2005 [Refereed][Not invited]
   

  We have developed an algorithm for designing multiple sequences of nucleic acids that have a uniform melting temperature between the sequence and its complement and that do not hybridize non-specifically with each other based on the minimum free energy (DeltaG (min)). Sequences that satisfy these constraints can be utilized in computations, various engineering applications such as microarrays, and nano-fabrications. Our algorithm is a random generate-and-test algorithm: it generates a candidate sequence randomly and tests whether the sequence satisfies the constraints. The novelty of our algorithm is that the filtering method uses a greedy search to calculate DeltaG (min). This effectively excludes inappropriate sequences before DeltaG (min) is calculated, thereby reducing computation time drastically when compared with an algorithm without the filtering. Experimental results in silico showed the superiority of the greedy search over the traditional approach based on the hamming distance. In addition, experimental results in vitro demonstrated that the experimental free energy (DeltaG (exp)) of 126 sequences correlated well with DeltaG (min) (\R\ = 0.90) than with the hamming distance (\R\ = 0.80). These results validate the rationality of a thermodynamic approach. We implemented our algorithm in a graphic user interface-based program written in Java.
• Motion Design for Indoor Blimp Robot with PID Controller.

  Hidenori Kawamura, Hisao Kadota, Masahito Yamamoto, Toshihiko Takaya, Azuma Ohuchi

  JRM 17 (5) 500 - 508 2005 [Refereed][Not invited]
  
• Development, evaluation and benchmarking of simulation software for biomolecule-based computing

  Derrel Blain, Max Garzon, Soo-Yong Shin, Byoung-Tak Zhang, Satoshi Kashiwamura, Masahito Yamamoto, Atsushi Kameda, Azuma Ohuchi

  Natural Computing 3 (4) 427 - 442 1567-7818 2004/12 [Refereed][Not invited]
   

  Simulators for biomolecular computing, (both in vitro and in silico), have come to play an important role in experimentation, analysis, and evaluation of the efficiency and scalability of DNA and biomolecule based computing. Simulation in silico of DNA computing is useful to support DNA-Computing algorithm design and to reduce the cost and effort of lab experiments. Although many simulations have now been developed, there exists no standard for simulation software in this area. Reliability, performance benchmarks, user interfaces, and accessibility are arguably the most important criteria for development and wide spread use of simulation software for BMC. The requirements and evaluation of such software packages for DNA computing software are discussed, particularly questions about software development, appropriate user environments, standardization of benchmark data sets, and centrally available common repositories for software and/or data. © 2004 Kluwer Academic Publishers.
• Development of Autonomous Balloon Robot System with Vision Camera and PD Position Controller

  角田久雄, 川村秀憲, 山本雅人, 高谷敏彦, 大内東

  情報処理学会論文誌 45 (6) 1715 - 1724 0387-5806 2004/06/15 [Not refereed][Not invited]
  
• Development of Autonomous Balloon Robot System with Vision Camera and PD Position Controller(Application Systems)

  KADOTA HISAO, KAWAMURA HIDENORI, YAMAMOTO MASAHITO, TAKAYA TOSHIHIKO, OHUCHI AZUMA

  IPSJ Journal 一般社団法人情報処理学会 45 (6) 1715 - 1724 0387-5806 2004/06/15 [Not refereed][Not invited]
   

  Balloon robots have attracted attention as new type indoor robots for various applications, e.g., observation, guidance, and amusement flying. A balloon robot can float and move long time in 3-dimensional space by low energy. However, it is difficult to control positioning of a balloon robot because it has great inertia and is easily effected by a little air stream of a conditioner. Positioning control under usual indoor environment is key technology to realize an autonomous balloon robot. In this paper, we develop the indoor-type balloon robot system with a light wireless vision camera. The balloon robot is controlled to keep at the target position based on simple vision processing and PD-controller. Vision processing is realized by perceiving a red circle on the floor as a landmark. In the experiments, several PD settings are investigated for positioning control, and we conclude the paper by that P-controller is suitable to keep at the target position and PD-controller successfully works to go in the direction of target from far position.
• Two-step search for DNA sequence design

  S Kashiwamura, A Kameda, M Yamamoto, A Ohuchi

  IEICE TRANSACTIONS ON FUNDAMENTALS OF ELECTRONICS COMMUNICATIONS AND COMPUTER SCIENCES E87A (6) 1446 - 1453 0916-8508 2004/06 [Refereed][Not invited]
   

  DNA Sequence Design Problem is a crucial problem in information-based biotechnology such as DNA computing. In this paper, we introduce a powerful design strategy for DNA sequences by refining Random Generator. Random Generator is one of the design strategies and offers great advantages, but it is not a good algorithm for generating a large set of DNA sequences. We propose a Two-Step Search algorithm, then show that TSS can generate a larger set of DNA sequences than Random Generator by computer simulation.
• Thermodynamic parameters based on a nearest-neighbor model for DNA sequences with a single-bulge loop

  F Tanaka, A Kameda, M Yamamoto, A Ohuchi

  BIOCHEMISTRY 43 (22) 7143 - 7150 0006-2960 2004/06 [Refereed][Not invited]
   

  All 64 possible thermodynamic parameters for a single-bulge loop in the middle of a sequence were derived from optical melting studies. The relative stability of a single bulge depended on both the type of bulged base and its flanking base pairs. The contribution of the single bulge to helix stability ranged from 3.69 kcal/mol for a TAT bulge to - 1.05 kcal/mol for an ACC bulge. Thermodynamics for 10 sequences with a GTG bulge were determined to test the applicability of the nearest-neighbor model to a single-bulge loop. Thermodynamic parameters for the GTG bulge and Watson-Crick base pairs predict DeltaG(37)degrees, DeltaHdegrees DeltaSdegrees and T-M(50muM) values with average deviations of 3.0%, 4.3%, 4.7%, and 0.9 degreesC, respectively. The prediction accuracy was within the limits of what can be expected for a nearestneighbor model. This certified that the thermodynamics for single-bulge loops can be estimated adequately using a nearest-neighbor model.
• DNAコンピューティングと最適化

  山本雅人, 大内東

  電気学会全国大会講演論文集 2004 (4) 4.S19(13)-4.S19(16) - 16 2004/03/17 [Not refereed][Not invited]
  
• Conformational addressing using the hairpin structure of single-strand DNA

  A Kameda, M Yamamoto, H Uejima, M Hagiya, K Sakamoto, A Ohuchi

  DNA COMPUTING 2943 219 - 224 0302-9743 2004 [Refereed][Not invited]
   

  In this paper, we demonstrate through a chemistry experiment that conformational addressing can be achieved using the hairpin structure of a DNA molecule. The hairpin structure made by single-strand DNA (ssDNA) self-hybridization is made into the address part of conformational addressing, and it is assumed that; the memory is read by opening this hairpin. The hairpin is continuously arranged in order to divide the address by class. Reading a sub-address requires an appropriate input oligomer to be added, when the preceding hairpin has been opened. We investigated, through the chemistry experiment, whether it would be possible to open the hairpin by the addition of an input oligomer into a solution that contained a hairpin-formed ssDNA.
• Nearest-neighbor thermodynamics of DNA sequences with single bulge loop

  F Tanaka, A Kameda, M Yamamoto, A Ohuchi

  DNA COMPUTING 2943 170 - 179 0302-9743 2004 [Refereed][Not invited]
   

  Forty thermodynamic parameters were estimated for DNA duplexes with a single bulge loop. In DNA computing, sequences need to form wanted structures, not unwanted structures. To achieve this, we should design sequences with low free energy (Delta(37)(degrees)) in wanted structures and high free energy in unwanted structures. Conventional sequence design strategies have not prevented the formation of bulge loop structures completely. Estimation of the DeltaG(37)(degrees) of the bulge loop with the loop length from the chemical experimental data has not been enough to predict the DeltaG(37)(degrees) of the bulge loop structure. To investigate the effect of the type of bulged base and its flanking base pairs, we applied the nearest-neighbor model to DNA sequences with a single bulge loop. We also estimated the effect of loop position on the stability of a single bulge loop.
• Vision-Based Motion Control of Indoor Blimp Robot(Featured Robot 1,Session: TP1-B)

  Kadota Hisao, Kawamura Hidenori, Yamamoto Masahito, Takaya Toshihiko, Ohuchi Azuma

  The Abstracts of the international conference on advanced mechatronics : toward evolutionary fusion of IT and mechatronics : ICAM 一般社団法人日本機械学会 2004 47 - 47 1348-8961 2004
• An Automatically Generated Portal Site of Official Accommodation Websites.

  Masahito Yamamoto, Kohichiro Takagi, Masashi Nakatsugawa, Hidenori Kawamura, Azuma Ohuchi

  Information and Communication Technologies in Tourism(ENTER) 317 - 325 2004
• Design of Action-value Function in Motion Planning for Autonomous Blimp Robots

  Keiko Motoyama, Hidenori Kawamura, Masahito Yamamoto, Azuma Ohuchi

  IEEJ Transactions on Electronics, Information and Systems 124 (10) 1930 - 1937 1348-8155 2004 [Refereed][Not invited]
   

  The final goal of this study is to achieve an autonomous indoor blimp robot. While blimp robots are attractive entities moving safely in three dimensional space, they are hard to control autonomously as they are subjected to strong inertial forces and air resistance, and have many nonlinear characteristics. As blimp robots are used not only in vast halls but also in complex buildings with obstacles such as pillars and walls, they need to plan suitable motion for avoiding them. Furthermore, robots need to conserve energy with restricted power supply because they are unable to carry heavy batteries. We have to design an action-value function for planning motion in a blimp robot, considering constraints imposed by these characteristics of an actual robot. In this paper, we designed an action-value function for motion planning based on the potential field method, and evaluated its effectiveness in a simulated environment. © 2004, The Institute of Electrical Engineers of Japan. All rights reserved.
• Masahito Yamamoto, Kohichiro Takagi, Masashi Nakatsugawa, Hidenori Kawamura and Azuma Ohuchi: An Automatically Generated Portal Site of Official Accommodation Web Sites, Infomation and Communitcation Technologies in Tourism 2004, Springer-Verlag (ISBN ・・・

  2004 [Not refereed][Not invited]
   

  Masahito Yamamoto, Kohichiro Takagi, Masashi Nakatsugawa, Hidenori Kawamura and Azuma Ohuchi:
  An Automatically Generated Portal Site of Official Accommodation Web Sites,
  Infomation and Communitcation Technologies in Tourism 2004,
  Springer-Verlag (ISBN 3-211-20669-8), pp. 317-325 (2004)*
• Hisao Kadota, Hidenori Kawamura, Masahito Yamamoto, Toshiaki Takaya and Azuma Ohuchi: Design of Vision-Based Motion Control System for Balloon Robot, Proceedings of the Ninth International Symposium on Artificial Life and Robotics (AROB 9th), pp. 325-3・・・

  2004 [Not refereed][Not invited]
   

  Hisao Kadota, Hidenori Kawamura, Masahito Yamamoto, Toshiaki Takaya and Azuma Ohuchi:
  Design of Vision-Based Motion Control System for Balloon Robot,
  Proceedings of the Ninth International Symposium on Artificial Life and Robotics (AROB 9th), pp. 325-328 (2004)*
• Masahito Yamamoto, Hidenori Kawamura, and Azuma Ohuchi: Efficient Collection Method of Official Websites by Robot Program, Proceedings of the Fifth Asia-Pacific Industrial Engineering and Management Systems Conference, CD-ROM (2004)*

  2004 [Not refereed][Not invited]
  
• Hisao Kadota, Hidenori Kawamura, Masahito Yamamoto, Toshihiko Takaya, and Azuma Ohuchi: Vision-Based Motion Control of Indoor Blimp Robot, Proceedings of The 4th International Conference on Advanced Mechatronics -Toward Evolutionary Fusion of I・・・

  2004 [Not refereed][Not invited]
   

  Hisao Kadota, Hidenori Kawamura, Masahito Yamamoto, Toshihiko Takaya, and Azuma Ohuchi:
  Vision-Based Motion Control of Indoor Blimp Robot,
  Proceedings of The 4th International Conference on Advanced Mechatronics -Toward Evolutionary
  Fusion of IT and Mechatronics- (ICAM'04), CD-ROM (2004)*
• Fumiaki Tanaka, Atsushi Kameda, Masahito Yamamoto and Azuma Ohuchi: Thermodynamic Parameters Based on a Nearest-Neighbor Model for DNA Sequences with a Single-Bulge Loop,Biochemistry, Vol. 43, No. 22, pp. 7143-7150 (2004)*

  2004 [Not refereed][Not invited]
  
• Naoto Takahashi, Atsushi Kameda, Masahito Yamamoto, and Azuma Ohuchi: Aqueous Computing with DNA Hairpin-based RAM, Preliminary Proceedings of the Tenth International Meeting on DNA Based Computers (DNA10), pp. 50-59 (2004)*

  2004 [Not refereed][Not invited]
  
• Naoto Takahashi, Atsushi Kameda, Masahito Yamamoto and Azuma Ohuchi: Construction and Verfication of DNA Hairpin-based RAM, Proceedings of the Ninth International Symposium on Artificial Life and Robotics (AROB 9th), pp. 388-328 (2004)*

  2004 [Not refereed][Not invited]
  
• Hajime Saito, Masashi Nakatsugawa, Masahito Yamamoto, Hidenori Kawamura, Saburo Nakano, Nobuo Hashimoto, and Azuma Ohuchi: A Study on Digital Archive For Field (Outdoor) Sculpture on Constructing Hokkaido Sculpture Web, Proceedings of the Fifth ・・・

  2004 [Not refereed][Not invited]
   

  Hajime Saito, Masashi Nakatsugawa, Masahito Yamamoto, Hidenori Kawamura, Saburo Nakano,
  Nobuo Hashimoto, and Azuma Ohuchi:
  A Study on Digital Archive For Field (Outdoor) Sculpture on Constructing Hokkaido Sculpture Web,
  Proceedings of the Fifth Asia-Pacific Industrial Engineering and Management Systems Conference, CD-ROM (2004)*
• Atsushi Kameda, Keisuke Hashimoto, Masahito Yamamoto, and Azuma Ohuchi: Probabilistic State Transition Model based on PCR, Preliminary Proceedings of the Tenth International Meeting on DNA Based Computers (DNA10), p. 448 (2004)*

  2004 [Not refereed][Not invited]
  
• Kadota H., Kawamura H., Yamamoto M., Takaya T. and Ohuchi A.: "Design of Vision-Based Motion Control System for Balloon Robot", Proceedings of the Ninth International Symposium on Artificial Life and Robotics (AROB 9th '04), 1:325-328(2004)*

  2004 [Not refereed][Not invited]
  
• Tanaka F., Kameda A., Yamamoto M. and Ohuchi A.: "Nearest-Neighbor Thermodynamics of DNA Sequences with Single Bulge Loop", Lecture Notes in Computer Science, 2943:170-179(2004)*

  2004 [Not refereed][Not invited]
  
• Fumiaki Tanaka, Atsushi Kameda, Masahito Yamamoto and Azuma Ohuchi: Nearest-Neighbor Thermodynamics of DNA Sequences with Single Bulge Loop, Lecture Notes in Computer Science (ISBN 3-540-20930-1), Vol.2943, pp. 170-179 (2004)*

  2004 [Not refereed][Not invited]
  
• Keiko Motoyama, Hidenori Kawamura, Masahito Yamamoto and Azuma Ohuchi: Design of Action-value Function in Motion Planning for Autonomous Blimp Robot, IEEJ Transactions on Electronics, Information and Systems, Vol. 10, No. 124, pp. 1930-1937 (2004)*

  2004 [Not refereed][Not invited]
  
• Satoshi Kashiwamura Atsushi Kameda, Masahito Yamamoto and Azuma Ohuchi: General Protocol for Evaluating the Gegree of Occurence of Mis-Hybridization, Proceedings of the Ninth International Symposium on Artificial Life and Robotics (AROB 9th), pp. 303-・・・

  2004 [Not refereed][Not invited]
   

  Satoshi Kashiwamura Atsushi Kameda, Masahito Yamamoto and Azuma Ohuchi:
  General Protocol for Evaluating the Gegree of Occurence of Mis-Hybridization,
  Proceedings of the Ninth International Symposium on Artificial Life and Robotics (AROB 9th), pp. 303-308 (2004)*
• Hidenori Kawamura, Masahito Yamamoto, and Azuma Ohuchi: Mutliagent Analysis of Customer-Driven Reservation System, Proceedings of the Fifth Asia-Pacific Industrial Engineering and Management Systems Conference, CD-ROM (2004)*

  2004 [Not refereed][Not invited]
  
• Satoshi Kashiwamura, Atsushi Kameda, Masahito Yamamoto and Azuma Ohuchi: Two-Step Search for DNA Sequence Design, IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences Vol. E87-A, No. 6, pp. 1446-1453 (2004)*

  2004 [Not refereed][Not invited]
  
• Derrel Blain, Max Garzon, Soo-Yong Shin, Byoung-Tak Zhang, Satoshi Kashiwamura, Masahito Yamamoto, Atsushi Kameda and Azuma Ohuchi: Development, Evaluation and Benchmarking of Simulation Software for Biomolecule-based Computing, Natural Computin・・・

  2004 [Not refereed][Not invited]
   

  Derrel Blain, Max Garzon, Soo-Yong Shin, Byoung-Tak Zhang, Satoshi Kashiwamura,
  Masahito Yamamoto, Atsushi Kameda and Azuma Ohuchi:
  Development, Evaluation and Benchmarking of Simulation Software for Biomolecule-based Computing,
  Natural Computing, Vol.3, No.4, pp. 427-442 (2004)*
• Hisao Kadota, Hidenori Kawamura, Masahito Yamamoto, Toshihiko Takaya, and Azuma Ohuchi: Vision-based Positioning System for Indoor Blimp Robot, Proceedings of 5th IFAC/EURON Symposium on Intelligent Autonomous Vehicles (IAV2004), CD-ROM (2004)*

  2004 [Not refereed][Not invited]
  
• Mitsuyoshi Nagao, Hidenori Kawamura, Masahito Yamamoto, and Azuma Ohuchi: Acquisition of Personal Tourism Activity Information Based on GPS Log Mining Method, Proceedings of the Fifth Asia-Pacific Industrial Engineering and Management Systems Conf・・・

  2004 [Not refereed][Not invited]
   

  Mitsuyoshi Nagao, Hidenori Kawamura, Masahito Yamamoto, and Azuma Ohuchi:
  Acquisition of Personal Tourism Activity Information Based on GPS Log Mining Method,
  Proceedings of the Fifth Asia-Pacific Industrial Engineering and Management Systems Conference, CD-ROM (2004)*
• Atsushi Kameda, Masahito Yamamoto, Hiroki Uejima, Masami Hagiya, Kensaku Sakamoto and Azuma Ohuchi: Conformational Addressing Using the Hairpin Structure of Single-Strand DNA, Lecture Note of Computer Science 2943, DNA9, pp. 219-224 (2004)*

  2004 [Not refereed][Not invited]
  
• Takahashi N., Kameda A., Yamamoto M. and Ohuchi A.: "Construction and Verification of DNA Hairpin-based RAM", Proceedings of the Ninth International Symposium on Artificial Life and Robotics (AROB 9th '04), 2:388-391(2004)*

  2004 [Not refereed][Not invited]
  
• Kashiwamura S., Kameda A., Yamamoto M. and Ohuchi A.: "General Protocol for Evaluating the Degree of Occurrence of Mis-Hybridization", Proceedings of the Ninth International Symposium on Artificial Life and Robotics (AROB 9th '04), 1:303-308(2004)*

  2004 [Not refereed][Not invited]
  
• Hierarchical DNA memory based on nested PCR

  S Kashiwamura, M Yamamoto, A Kameda, T Shiba, A Ohuchi

  DNA COMPUTING 2568 112 - 123 0302-9743 2003 [Refereed][Not invited]
   

  This paper presents a hierarchical DNA memory based on nested PCR. Each DNA strand in memory consists of address blocks and a data block. In order to access specific data, we specify the order of the address primers, and nested PCR are performed by using these primers. Our laboratory experiments are also presented to demonstrate the feasibility of the proposed memory.
• The effect of the bulge loop upon the hybridization process in DNA computing

  F Tanaka, A Kameda, M Yamamoto, A Ohuchi

  EVOLVABLE SYSTEMS: FROM BIOLOGY TO HARDWARE, PROCEEDINGS 2606 446 - 456 0302-9743 2003 [Refereed][Not invited]
   

  To improve the efficiency of DNA computing, we need to prevent hybridization errors. In this paper, we focus on the bulge loop structures, which cannot be prevented by current sequence design methods. To estimate the formation of bulge loop structure, we measured the melting temperature (Tm) and the binding intensity of sequences with a single bulge loop in some simple experiments. Based on the experimental results, we mainly discuss the effect of the base type and the position of the loops. We also discuss the possibilities for modeling the formation of bulge loops based on these experimental results.
• Kashiwamura S., Kameda A., Yamamoto M. and Ohuchi A.: "Evaluation and Benchmarking", Proceedings of Workshop on Simulation Tools for Biomolecular Computing in 2003 Congress on Evolutionary Computation (CEC2003), 22-26(2003)*

  2003 [Not refereed][Not invited]
  
• Takagi K., Yamamoto M., Nakatsugawa M., Kawamura H. and Ohuchi A.: "An Automatic Collection System for Official Accommodation Websites", Proceedings of 7th International Meeting On DNA Based Computers, 人工知能学会研究会資料 (SIG-KBS-A301), 99-104(2003)*

  2003 [Not refereed][Not invited]
  
• Takahashi N., Kameda A., Yamamoto M. and Ohuchi A.: "Construction of DNA Hairpin-based RAM", Proceedings of the 2003 International Technical Conference on Circuits/Systems, Computers and Communications (ITC-CSCC 2003), [(CD-ROM)](2003)*

  2003 [Not refereed][Not invited]
  
• Kashiwamura S., Kameda A., Yamamoto M. and Ohuchi A.: "Two-Step Search for DNA Sequence Design", Proceedings of the 2003 International Technical Conference on Circuits/Systems, Computers and Communications (ITC-CSCC 2003), [(CD-ROM)](2003)*

  2003 [Not refereed][Not invited]
  
• Atsushi Kameda, Masahito Yamamoto, Hiroki Uejima, Masami Hagiya, Kensaku Sakamoto and Azuma Ohuchi: Conformational Addressing using the Hairpin Structure of Single-strand DNA, Proceedings of 9th International Meetings on DNA Based Computers (DNA9), pp.・・・

  2003 [Not refereed][Not invited]
   

  Atsushi Kameda, Masahito Yamamoto, Hiroki Uejima, Masami Hagiya, Kensaku Sakamoto and Azuma Ohuchi: Conformational Addressing using the Hairpin Structure of Single-strand DNA, Proceedings of 9th International Meetings on DNA Based Computers (DNA9), pp. 197-201 (2003)*
• Fumiaki Tanaka, Atsushi Kameda, Masahito Yamamoto and Azuma Ohuchi: The Effect of the Bulge Loop upon the Hybridization Process in DNA Computing, Evolvable Systems: From Biology to Hardware, 5th International Conference (ICES 2003), LNCS 2606, pp. 446-・・・

  2003 [Not refereed][Not invited]
   

  Fumiaki Tanaka, Atsushi Kameda, Masahito Yamamoto and Azuma Ohuchi: The Effect of the Bulge Loop upon the Hybridization Process in DNA Computing, Evolvable Systems: From Biology to Hardware, 5th International Conference (ICES 2003), LNCS 2606, pp. 446-456 (2003)*
• Keiko Motoyama, Hidenori Kawamura, Masahito Yamamoto and Azuma Ohuchi: Development of Autonomous Blimp Robot with Intelligent Control, Entertainment Computing - Technologies and Applications, pp. 191-198 (2003)*

  2003 [Not refereed][Not invited]
  
• Kadota H., Kawamura H., Yamamoto M., Takaya T. and Ohuchi A.: "Vision-based Control of Autonomous Flying Airship Robot", Proceedings of the 2003 International Technical Conference on Circuits/Systems, Computers and Communications (ITC-CSCC 2003), [(CD-・・・

  2003 [Not refereed][Not invited]
   

  Kadota H., Kawamura H., Yamamoto M., Takaya T. and Ohuchi A.:
  "Vision-based Control of Autonomous Flying Airship Robot",
  Proceedings of the 2003 International Technical Conference on Circuits/Systems, Computers and Communications (ITC-CSCC 2003), [(CD-ROM)](2003)*
• Satoshi Kashiwamura, Masahito Yamamoto, Atsushi Kameda, Toshikazu Shiba and Azuma Ohuchi: Hierarchical DNA Memory Based on Nested PCR, DNA Computing, 8th International Workshop on DNA-based Computers, LNCS 2568, Springer-Verlag, pp. 112-123 (2003) *

  2003 [Not refereed][Not invited]
  
• Motoyama K., Kawamura H., Yamamoto M. and Ohuchi A.: "Design of Action-value Function in Motion Planning for Autonomous Balloon Robot", Proceedings of 2003 Asia Pacific Symposium on Intelligent and Evolutionary Systems: Technology and Applications, 190・・・

  2003 [Not refereed][Not invited]
   

  Motoyama K., Kawamura H., Yamamoto M. and Ohuchi A.:
  "Design of Action-value Function in Motion Planning for Autonomous Balloon Robot",
  Proceedings of 2003 Asia Pacific Symposium on Intelligent and Evolutionary Systems: Technology and Applications, 190-195(2003)*
• Tanaka F., Kameda A., Yamamoto M. and Ohuchi A.: "The Effect on a Bonding Strength by the Freedom of Movement of a DNA Strand on a Solid Support in DNA Computing", Proceedings of the 2003 International Technical Conference on Circuits/Systems, Computer・・・

  2003 [Not refereed][Not invited]
   

  Tanaka F., Kameda A., Yamamoto M. and Ohuchi A.:
  "The Effect on a Bonding Strength by the Freedom of Movement of a DNA Strand on a Solid Support in DNA Computing",
  Proceedings of the 2003 International Technical Conference on Circuits/Systems, Computers and Communications (ITC-CSCC 2003), [(CD-ROM)](2003)*
• Hashimoto K., Kameda A., Yamamoto M. and Ohuchi A.: "State Transition Model Based on DNA Polymerization", Proceedings of the 2003 International Technical Conference on Circuits/Systems, Computers and Communications (ITC-CSCC 2003), [(CD-ROM)](2003)*

  2003 [Not refereed][Not invited]
  
• Fumiaki Tanaka, Atsushi Kameda, Masahito Yamamoto and Azuma Ohuchi: Nearest-Neighbor Thermodynamics of DNA Sequences with Single Bulge Loop, Proceedings of 9th International Meetings on DNA Based Computers (DNA9), pp. 150-159 (2003)*

  2003 [Not refereed][Not invited]
  
• Nakatsugawa M., Yamamoto M. and Ohuchi A.: "Study of the Efficient Parameter Setting based on Mahalanobis-Taguchi Strategy", Proceedings of the 2003 International Technical Conference on Circuits/Systems, Computers and Communications (ITC-CSCC 2003), [・・・

  2003 [Not refereed][Not invited]
   

  Nakatsugawa M., Yamamoto M. and Ohuchi A.:
  "Study of the Efficient Parameter Setting based on Mahalanobis-Taguchi Strategy",
  Proceedings of the 2003 International Technical Conference on Circuits/Systems, Computers and Communications (ITC-CSCC 2003), [(CD-ROM)](2003)*
• Onodera M., Kawamura H., Yamamoto M., Kurumatani K. and Ohuchi A.: "Design of Adaptive Trading Strategy for Trading Agent Competition", Proceedings of the 2003 International Technical Conference on Circuits/Systems, Computers and Communications (ITC-CS・・・

  2003 [Not refereed][Not invited]
   

  Onodera M., Kawamura H., Yamamoto M., Kurumatani K. and Ohuchi A.:
  "Design of Adaptive Trading Strategy for Trading Agent Competition",
  Proceedings of the 2003 International Technical Conference on Circuits/Systems, Computers and Communications (ITC-CSCC 2003), [(CD-ROM)](2003)*
• Ayako Nishimura, Hidenori Kawamura, Masahito Yamamoto and Azuma Ohuchi: Learning control of autonomous airship for three-dimensional pursuit problem, Proceedings of Artificial Life And Robotics 8th (AROB 8th '03), pp. 194-197 (2003)*

  2003 [Not refereed][Not invited]
  
• Yamamoto M., Takagi T., Nakatsugawa M., Kawamura H. and Ohuchi A.: "An Automatically Generated Portal Site of Official Accommodation Web Sites", Information and Communitcation Technologies in Tourism 2004, Springer-Verlag, 317-325(2004)*

  2003 [Not refereed][Not invited]
  
• Kameda A., Yamamoto M., Uejima H., Hagiya M., Sakamoto K. and Ohuchi A.: "Conformational Addressing Using the Hairpin Structure of Single-Strand DNA", Lecture Notes in Computer Science, 2943:219-224(2004)*

  2003 [Not refereed][Not invited]
  
• DNA Computing Paradign : Principle and Applications

  YAMAMOTO Masahito, SHIBA Toshikazu, OHUCHI Azuma

  Systems, control and information システム制御情報学会 46 (5) 260 - 268 0916-1600 2002/05/15 [Not refereed][Not invited]
  
• DNA Computing. 2. DNA Computing with Concentration Control.

  山本 雅人, 大内 東

  The Journal of the Institute of Electrical Engineers of Japan 社団法人 電気学会 122 (3) 152 - 155 2002/03/01 [Not refereed][Not invited]
  
• Indexing of Utilizing Information Technology in Prefectural Medical Associations

  OHUCHI Azuma, KURIHARA Masahito, MITAMURA Tamotsu, YAMAMOTO Masahito, MIYAKOSHI Akio, NAKAGAWA Toshio, NAGASAWA Kunio

  医療情報学 = Japan journal of medical informatics 一般社団法人 日本医療情報学会 21 (6) 397 - 405 0289-8055 2002/02/01 [Not refereed][Not invited]
   

   In this paper, we propose a method to index for present condition of utilizing information technology of prefectural medical associations. Additionally, we report, as a case study, the results of the application of the proposed method to survey and analysis of Hokkaido Medical Associations and indexing them.

   The method involves surveying the present situation of each medical association in terms of the three points of view, i.e., infrastractures (I), skill (S) and mind (M). We propose four indices to verify the present situation of medical associations, i.e., ISM index, ISM±index, l-u index and l-u ratio index.

   The proposed method was applied to carry out survey of Hokkaido Medical Associations. The result reveals wide applicabilty of the method.

• An analysis of computational efficiency of DNA computing

  A Kameda, N Matsuura, M Yamamoto, A Ohuchi

  UNCONVENTIONAL MODELS IN COMPUTATION, PROCEEDINGS 2509 191 - 198 0302-9743 2002 [Refereed][Not invited]
   

  In this paper, we investigate the relation between an experimental condition and computational (reaction) efficiency of a simple model in DNA computing. A DNA computing algorithm needs many chemical and enzyme reactions in its solution process. An experimental condition for DNA computing is generally based on a molecular biology protocol. However, the purpose of an experiment is different in DNA computing and molecular biology. Therefore, we verified the relation between an experimental condition, reaction time, and reaction efficiency specifically from the viewpoint of DNA computing.
• Development of autonomous blimp robot with intelligent control.

  Keiko Motoyama, Hidenori Kawamura, Masahito Yamamoto, Azuma Ohuchi

  Entertainment Computing: Technologies and Applications, IFIP First International Workshop on Entertainment Computing (IWEC 2002), May 14-17, 2002, Makuhari, Japan Kluwer 191 - 198 2002 [Refereed][Not invited]
  
• A security system for personal genome information at DNA level

  Y Kawazoe, T Shiba, M Yamamoto, A Ohuchi

  CSB2002: IEEE COMPUTER SOCIETY BIOINFORMATICS CONFERENCE 1 314 - 320 1555-3930 2002 [Refereed][Not invited]
   

  The personal information encoded in genomic DNAshould not be made available to the public. With the increasing discoveries of new genes, it has become necessary to establish a security system for personal genome information. Although many security systems that are applied for electrical information in computers have been developed and established, there is no security system for information at DNA level. In this paper, we describe a new security system for information encoded within DNA. The original genomic DNA was mixed with many kinds of dummy DNAs (mixtures of natural and/or artificial DNAs) resulting in the masking of the original information. Using these dummy molecules, we succeeded to completely 'lock' the original genome information. If this information must be 'unlocked', it can be extracted and analyzed by a removal of dummy DNAs using molecular tagging techniques or by selective amplification using key primers.
• A separation method for DNA computing based on concentration control

  M Yamamoto, A Kameda, N Matsuura, T Shiba, Y Kawazoe, A Ohuchi

  NEW GENERATION COMPUTING 20 (3) 251 - 261 0288-3635 2002 [Refereed][Not invited]
   

  A separation method for DNA computing based on concentration control is presented. The concentration control method was earlier developed and has enabled us to use DNA concentrations as input data and as filters to extract target DNA. We have also applied the method to the shortest path problems, and have shown the potential of concentration control to solve large-scale combinatorial optimization problems. However, it is still quite difficult to separate different DNA with the same length and to quantify individual DNA concentrations. To overcome these difficulties, we use DGGE and CDGE in this paper. We demonstrate that the proposed method enables us to separate different DNA with the same length efficiently, and we actually solve an instance of the shortest path problems.
• Improved Multiple Ant Colonies System for Traveling Salesman Problems

  Hidenori Kawamura, Masahito Yamamoto, Azuma Ohuchi

  "Operations Research/Management Science at Work" in the International Series in Operations Research & Management Science 43 41 - 52 2002 [Refereed]
  
• Design of a PCR protocol for improving reliability of PCR in DNA computing

  Masashi Nakatsugawa, Masahito Yamamoto, Toshikazu Shiba, Azuma Ohuchi

  Proceedings of the 2002 Congress on Evolutionary Computation, CEC 2002 1 91 - 96 2002 [Refereed][Not invited]
   

  Polymerase chain reaction (PCR) is the most useful experimental technique in DNA computing. We improve the reliability of PCR by adjusting the PCR protocol. Quality engineering makes efficient adjustment possible. We especially try to design a common protocol for improving the reliability of PCR in various reaction mixtures. © 2002 IEEE.
• Towards a general-purpose sequence design system in DNA computing

  F Tanaka, M Nakatsugawa, M Yamamoto, T Shiba, A Ohuchi

  CEC'02: PROCEEDINGS OF THE 2002 CONGRESS ON EVOLUTIONARY COMPUTATION, VOLS 1 AND 2 73 - 78 2002 [Refereed][Not invited]
   

  Sequence design has turned out to be a crucial factor in successful DNA computing. In this paper, we present a support system for sequence design in DNA computing. Our system can fit various requirements for sequence design. The beta-version of this software is available for download.(1).
• A study on behavioral structure of artificial market based on adaptive game

  T Hamada, H Kawamura, M Yamamoto, A Ohuchi

  CEC'02: PROCEEDINGS OF THE 2002 CONGRESS ON EVOLUTIONARY COMPUTATION, VOLS 1 AND 2 2011 - 2016 2002 [Refereed][Not invited]
   

  We analyze the behavior of players in the situation where they recognize an identical situation as a simple market-like place differently. In our. model a player considers the others as a representative player. We examine the player's behavior when with and without fluidity of players.
• Simulation analysis of hybridization process for DNA computing with concentration control

  M Yamamoto, A Kameda, N Matsuura, T Shiba, A Ohuchi

  CEC'02: PROCEEDINGS OF THE 2002 CONGRESS ON EVOLUTIONARY COMPUTATION, VOLS 1 AND 2 85 - 90 2002 [Refereed][Not invited]
   

  In this paper, the results of analysis of the hybridization process in DNA computing by using a simulation model are presented. The simulation model has some parameters that influence the results of computation. The,relations between these parameters and the results of simulations and laboratory experiments are therefore discussed.
• Nakatsugawa, M., Kashiwamura, S., Yamamoto, M., Shiba, T. and Ohuchi, A.: "Towards a High Reliability of the PCR Amplification Process in DNA Computing", The International Journal of Computational Intelligence and Applications (IJCIA), 2(4):423-432 (20・・・

  2002 [Not refereed][Not invited]
   

  Nakatsugawa, M., Kashiwamura, S., Yamamoto, M., Shiba, T. and Ohuchi, A.: "Towards a High Reliability of the PCR Amplification Process in DNA Computing", The International Journal of Computational Intelligence and Applications (IJCIA), 2(4):423-432 (2002)*
• Tanaka, F., Nakatsugawa, M., Yamamoto, M., Shiba, T. and Ohuchi, A.: "Towards a General-Purpose Sequence Design System in DNA Computing", Proceedings of 2002 Congress on Evolutionary Computation (CEC2002), 73-78 (2002)*

  2002 [Not refereed][Not invited]
  
• Nakatsugawa, M., Yamamoto, M., Shiba, T. and Ohuchi, A.: "Design of a PCR Protocol for Improving Reliability of PCR in DNA Computing", Proceedings of 2002 Congress on Evolutionary Computation (CEC2002), 91-96 (2002)*

  2002 [Not refereed][Not invited]
  
• Nakatsugawa, M., Yamamoto, M., Shiba, T. and Ohuchi, A.: "Improvement of the Reliability of Experiments in DNA Computing", Preliminary Proceedings of Eighth International Meeting on DNA Based Computers (DNA8), 333 (2002)*

  2002 [Not refereed][Not invited]
  
• Yamamoto, M., Kameda, A., Matsuura, N., Shiba, T., Kawazoe, Y. and Ohuchi, A.: "Local Search by Concentration Controlled DNA Computing", The International Journal of Computational Intelligence and Applications (IJCIA), 2(4):447-456 (2002)*

  2002 [Not refereed][Not invited]
  
• Yamamoto, M., Kameda, A., Matsuura, N., Shiba, T., Kawazoe, Y. and Ohuchi, A.: "A Separation Method for DNA Computing Based on Concentration Control", New Generation Computing, 20:249-259 (2002)*

  2002 [Not refereed][Not invited]
  
• Hamada, T., Kawamura, H. Yamamoto, M. and Ohuchi, A.: "A Study on Behavioral Structure of Artificial Market Based on Adaptive Game", Proceedings of 2002 Congress on Evolutionary Computation (CEC2002), 2011-2016 (2002)*

  2002 [Not refereed][Not invited]
  
• Jan, A.，Yamamoto, M. and Ohuchi, A.: "Search Algorithms For Nurse Scheduling With Genetic Algorithms，Operations Research/Management Science at Work", the International Series in Operations Research & Management Science, 43, Kluwer Academic Publishers (・・・

  2002 [Not refereed][Not invited]
   

  Jan, A.，Yamamoto, M. and Ohuchi, A.: "Search Algorithms For Nurse Scheduling With Genetic Algorithms，Operations Research/Management Science at Work", the International Series in Operations Research & Management Science, 43, Kluwer Academic Publishers (ISBN 0-7923-7588-2), 149-161 (2002)*
• Kameda, A., Matsuura, N., Yamamoto, M. and Ohuchi, A.: "An Analysis of Computational Efficiency on DNA Computing", Proceedings of 3rd International Conference on Unconventional Models of Computation (UMC' 02), 191-198 (2002)*

  2002 [Not refereed][Not invited]
  
• Kawazoe, Y., Shiba, T., Yamamoto, M. and Ohuchi, A.: "Constructions of Security System for Information Encoded by DNA", Preliminary Proceedings of Eighth International Meeting on DNA Based Computers (DNA8), 337 (2002)*

  2002 [Not refereed][Not invited]
  
• Yamamoto, M., Kameda, A., Matsuura, N., Shiba, T. and Ohuchi, A.: "Simulation Analysis of Hybridization Process for DNA Computing with Concentration Control", Proceedings of 2002 Congress on Evolutionary Computation (CEC2002), 85-90 (2002)*

  2002 [Not refereed][Not invited]
  
• Matsuura, M., Yamamoto, M., Kameda, A., Shiba, T. and Ohuchi, A.: "The Efficiency of Computation by using DNA Concentration", Proceedings of The Seventh International Symposium on Artificial Life and Robotics, 2:681-684 (2002)*

  2002 [Not refereed][Not invited]
  
• Motoyama, K., Suzuki, K., Kawamura, H., Yamamoto, M. and Ohuchi, A.: "Design of Adaptive Self Navigated Airship in Simulated Environment", Operations Research/Management Science at Work, the International Series in Operations Research & Management Scie・・・

  2002 [Not refereed][Not invited]
   

  Motoyama, K., Suzuki, K., Kawamura, H., Yamamoto, M. and Ohuchi, A.: "Design of Adaptive Self Navigated Airship in Simulated Environment", Operations Research/Management Science at Work, the International Series in Operations Research & Management Science, 43, Kluwer Academic Publishers (ISBN 0-7923-7588-2), 205-213 (2002)*
• Kawazoe, Y., Shiba, T., Yamamoto, M. and Ohuchi, A.: "A Security System for Personal Genome Information at DNA level", Proceedings of IEEE Computer Society Bioinformatics Conference, 314-320 (2002)*

  2002 [Not refereed][Not invited]
  
• Kashiwamura, S., Yamamoto, M., Kameda, A., Shiba, T. and Ohuchi, A.: "Hierarchical DNA Memory based on Nested PCR", Preliminary Proceedings of Eighth International Meeting on DNA Based Computers (DNA8), 231-240 (2002)*

  2002 [Not refereed][Not invited]
  
• Kawamura, H., Yamamoto, M. and Ohuchi, A.: "Improved Multiple Ant Colonies System for Traveling Salesman Problems", Operations Research/Management Science at Work, the International Series in Operations Research & Management Science, 43, Kluwer Academi・・・

  2002 [Not refereed][Not invited]
   

  Kawamura, H., Yamamoto, M. and Ohuchi, A.: "Improved Multiple Ant Colonies System for Traveling Salesman Problems", Operations Research/Management Science at Work, the International Series in Operations Research & Management Science, 43, Kluwer Academic Publishers (ISBN 0-7923-7588-2), 41-52 (2002)*
• A genetic algorithm for the optimal sequential partitioning problem

  Hajime Araki, Taichi Kaji, Masahito Yamamoto, Keiji Suzuki, Azuma Ohuchi

  Electrical Engineering in Japan (English translation of Denki Gakkai Ronbunshi) 135 (4) 43 - 51 0424-7760 2001/06 [Refereed][Not invited]
   

  The optimal sequential problem is defined as the problem of finding the minimum cost partition of the nodes of a directed acyclic graph into subsets of a given size, subject to the constraint that the precedence relationships among the elements are satisfied. A heuristic algorithm based on tabu search has been proposed for this problem [2]. However, there is a tendency for the solutions obtained by tabu search to become trapped in bad local optima in parallel graphs with random edge costs. In this paper we present a genetic algorithm for the optimal sequential partitioning problem. We develop an effective two-point partial order crossover satisfying sequential conditions, which preserve better blocks that have a larger sum of edge costs. In this crossover we introduce the roulette selection method to escape local optima. We also assess the effectiveness of the algorithm. The results show that this proposed algorithm outperforms any other algorithm using tabu search in terms of solution quality.
• Investigation of Evolutionary Pheromone Communication Based on External Measurement and Emergence of Swarm Intelligence

  KAWAMURA Hidenori, YAMAMOTO Masahito, OHUCHI Azuma

  計測自動制御学会論文集 計測自動制御学会 37 (5) 455 - 464 0453-4654 2001/05/31 [Not refereed][Not invited]
   

  In this paper, we focus on the emergence phenomenon related with artificial pheromone communication and swarm intelligence among many agents in Ants War environment, in which two colonies of artificial ant agents compete for the limited number of food items in order to survive in evolutionary process. The purpose of this research is to clarify the emerging process of communication and the relationship between communication and swarm intelligence. For investigation of communication, we introduce Shannon's entropy and the amount of information to externally measure "the effectivity of communication signals for decision-making of agents" and "the specialty of environmental situation in sending communication signals". In computer simulations, we confirm that the amounts of information of pheromone sensory inputs and selecting of sending pheromone signal are increased with correlation according to the progress of evolution. These experimental results derive that evolutionary communication is incrementally formed by the interaction among agents with self-organization and the self-reinforcement in communication-loop of repeated sending and receiving signals. In addition, we confirm the level of swarm intelligence with evolved pheromone communications by measurement of the correlation between the size of swarm and the performance in Ants War. In investigation, we find that the size of swarm and emergence of swarm intelligence are strongly related. The results introduced in this research will be a base for investigation of multi-agent communications.
• Developing Support System for Sequence Design in DNA Computing.

  Fumiaki Tanaka, Masashi Nakatsugawa, Masahito Yamamoto, Toshikazu Shiba, Azuma Ohuchi

  DNA Computing, 7th International Workshop on DNA-Based Computers, DNA7, Tampa, Florida, USA, June 10-13, 2001, Revised Papers Springer 129 - 137 2001 [Refereed][Not invited]
  
• Towards Optimization of PCR Protocol in DNA Computing.

  Satoshi Kashiwamura, Masashi Nakatsugawa, Masahito Yamamoto, Toshikazu Shiba, Azuma Ohuchi

  DNA Computing, 7th International Workshop on DNA-Based Computers, DNA7, Tampa, Florida, USA, June 10-13, 2001, Revised Papers Springer 14 - 22 2001 [Refereed][Not invited]
  
• Local search by concentration controlled DNA computing

  M Yamamoto, N Matsuura, T Shiba, Y Kawazoe, A Ohuchi

  ICCIMA 2001: FOURTH INTERNATIONAL CONFERENCE ON COMPUTATIONAL INTELLIGENCE AND MULTIMEDIA APPLICATIONS, PROCEEDINGS 2 (4) 167 - 171 2001 [Refereed][Not invited]
   

  Concentration controlled DNA computing are presented for realizing a local search for the solution of a shortest path problem. In this method, the concentrations of DNAs representing edges are determined according to the costs on the edges, and then the hybridization process is performed. Since the concentrations of hopeless candidate solutions tend to be small in the result of the hybridization process, we can realize a local search by the concentration controlled DNA computing. In order to discuss about the relation between given costs on edges in the graph and concentrations of generated DNA paths, the simulation model of the hybridization process is used, and the result of laboratory experiment is shown.
• Towards a high reliability of the PCR amplification process in DNA computing

  M Nakatsugawa, S Kashiwamura, M Yamamoto, T Shiba, A Ohuchi

  ICCIMA 2001: FOURTH INTERNATIONAL CONFERENCE ON COMPUTATIONAL INTELLIGENCE AND MULTIMEDIA APPLICATIONS, PROCEEDINGS 2 (4) 158 - 162 2001 [Refereed][Not invited]
   

  Polymerase Chain Reaction (PCR) is thc most important process in DNA computing. When a concentration of DNA sequence is too little to investigate, PCR could amplify the sequence by a polymerase. PCR is frequently applied to obtain a result in DIVA computing, because the result is generally shown by a little amount of DNA sequence. Therefore, a reliability of PCR must be assured for DNA computing. In this paper, we define a reproducibility of PCR as the reliability. Similarly, a reaction time is defined as a reaction cost, and other parameters are defined as control factors in quality engineering. By adjusting the factors, we improve a PCR performance shown by the reproducibility and reaction cost.
• Solutions of Shortest Path Problems by Concentration Control.

  Masahito Yamamoto, Nobuo Matsuura, Toshikazu Shiba, Yumi Kawazoe, Azuma Ohuchi

  DNA Computing, 7th International Workshop on DNA-Based Computers, DNA7, Tampa, Florida, USA, June 10-13, 2001, Revised Papers Springer 203 - 212 2001 [Refereed][Not invited]
  
• Analysis of Norms Game with Mutual Choice.

  Tomohisa Yamashita, Hidenori Kawamura, Masahito Yamamoto, Azuma Ohuchi

  New Frontiers in Artificial Intelligence, Joint JSAI 2001 Workshop Post-Proceedings Springer 174 - 184 2001 [Refereed][Not invited]
  
• An Acquisition of Evaluation Function for Shogi by Learning Self-Play

  Masahito Yamamoto, Keiji Suzuki, Azuma Ohuchi

  International Transactions in Operational Research 8 (3) 305 - 315 1475-3995 2001 [Refereed][Not invited]
   

  Since Deep Blue, which is a chess program, beat the world human chess champion, recent interest in computer games has been directed to shogi. However, the search space for shogi is larger than that of chess and a captured piece is available again in shogi. To overcome these difficulties, we propose a reinforcement learning method by self-play, in order to obtain a static evaluation function, which is a map from any positions in shogi to real values. Our proposed method is based on temporal difference learning, developed by R. Sutton and applied to backgammon by G. Tesauro. In our method, the neural network, which takes the board description of shogi positions and outputs the winning percentage from the position, is trained by only self-play without any knowledge of shogi. In order to show the effectiveness of obtained evaluation function, some computational experiments will be presented. International Federation of Operational Research Societies 2001.
• A face identification system based on the Mahalanobis–Taguchi system

  Mitsuyoshi Nagao, Masahito Yamamoto, Keiji Suzuki, Azuma Ohuchi

  International Transactions in Operational Research 8 (1) 31 - 45 1475-3995 2001 [Refereed][Not invited]
   

  In this paper, we propose a face identification system based on the Mahalanobis–Taguchi System (MTS). The MTS is one of the pattern recognition methods frequently used in quality engineering, and can perform robust pattern recognition by using training data, including noise. It is likely that this advantage will allow the effective implementation of a robust face identification system against lighting and face position fluctuations. Moreover, the MTS can optimize the number of attributes required for identification by using the orthogonal array and the signal/noise (SN) ratio. The face identification system has to deal with many users and the amount of data in a facial image is large. Therefore, the time required for identification can be decreased and the amount of data in the facial image database can be reduced by performing the optimization. We confirmed the effectiveness of the proposed system through practical experiments. The experimental results revealed that the MTS was an effective method for robust face identification, and could effectively reduce the number of attributes required for identification. International Federation of Operational Research Societies 2001.
• Effects of propotion of metanorm players on establishment of norm

  T Yamashita, H Kawamura, M Yamamoto, A Ohuchi

  ICCIMA 2001: FOURTH INTERNATIONAL CONFERENCE ON COMPUTATIONAL INTELLIGENCE AND MULTIMEDIA APPLICATIONS, PROCEEDINGS 195 - 199 2001 [Refereed][Not invited]
   

  In this paper We introduce mutual choice mechanism into the norms game instead of direct penal regulation and reformulate the norms game with mutual choice. In order to examine how the proportion of metanorm players to all players influences on the establishment of norm in the metanorms game with mutual choice, we perform simulation under several proportions of metanorm players. We exclude the game theoretic assumption of uniformity as the metanorm player and observe thf frequency of the establishment of the norm. As a result, we confirm the robustness of mutual choice against insufficiency of the metanorm players.
• Yamamoto M., Suzuki K. and Ohuchi A.: "An Acquisition of Evaluation Function for Shogi by Learning Self-play", International Transactions in Operational Research, 8, 3, 305-315 (2001)*

  2001 [Not refereed][Not invited]
  
• Nakatsugawa M., Kashiwamura S., Yamamoto M., Shiba T. and Ohuchi A.: "Towards a High Reliability of the PCR Amplification Process in DNA Computing", Proceedings of Fourth International Conference on Computational Intelligence and Multimedia Applicati・・・

  2001 [Not refereed][Not invited]
   

  Nakatsugawa M., Kashiwamura S., Yamamoto M., Shiba T. and Ohuchi A.:
  "Towards a High Reliability of the PCR Amplification Process in DNA Computing",
  Proceedings of Fourth International Conference on Computational Intelligence and Multimedia Applications (ICCIMA'01), 158-162 (2001)*
• Tanaka F., Nakatsugawa M., Yamamoto M., Shiba T. and Ohuchi A.: "Developing Support System for Sequence Design in DNA Computing", Proceedings of 7th International Meeting On DNA Based Computers, 340-349 (2001)*

  2001 [Not refereed][Not invited]
  
• Matsuura N., Yamamoto M., Shiba T., Kawazoe Y. and Ohuchi A.: "Solutions of Shortest Path Problems by Concentration Control", Proceedings of 7th International Meeting On DNA Based Computers, 231-240 (2001)*

  2001 [Not refereed][Not invited]
  
• Kashiwamura S., Nakatsugawa M., Yamamoto M., Shiba T. and Ohuchi A.: "Towards Optimization of PCR Protocol in DNA Computing", Proceedings of 7th International Meeting On DNA Based Computers, 283-292 (2001)*

  2001 [Not refereed][Not invited]
  
• Yamamoto M., Matsuura N., Shiba T., Kawazoe Y. and Ohuchi A.: "Local Search by Concentration Controlled DNA Computing", Proceedings of Fourth International Conference on Computational Intelligence and Multimedia Applications (ICCIMA'01), 167-171 (2001)*

  2001 [Not refereed][Not invited]
  
• Yamashita T., Kawamura H., Yamamoto M. and Ohuchi A.: "Effects of Proportion of Metanorm Players on Establishment of Norm", Proceedings of Fourth International Conference on Computational Intelligence and Multimedia Applications (ICCIMA'01), 195－199 ・・・

  2001 [Not refereed][Not invited]
   

  Yamashita T., Kawamura H., Yamamoto M. and Ohuchi A.:
  "Effects of Proportion of Metanorm Players on Establishment of Norm",
  Proceedings of Fourth International Conference on Computational Intelligence and Multimedia Applications (ICCIMA'01), 195－199 (2001)*
• Yamashita T., Kawamura H., Yamamoto M. and Ohuchi A.: "Analysis of Norms Game with Mutual Choice", Proceedings of JSAI 2001 Internal Workshop on Agent-based Approaches in Economic and Social Complex Systems (AESCS 2001), 123-130 (2001)*

  2001 [Not refereed][Not invited]
  
• Analysis of Mahalanobis distance in MTS. The calculation process and equation.

  中津川雅史, 山本雅人, 大内東

  品質工学 8 (5) 547 - 554 2000/10/01 [Not refereed][Not invited]
  
• Application of the MTS Method for Facial Expression Recognition

  NAGAO Mitsuyoshi, YAMAMOTO Masahito, SUZUKI Keiji, OHUCHI Azuma

  The Transactions of the Institute of Electrical Engineers of Japan. C 電気学会 120 (8) 1157 - 1164 0385-4221 2000/08/01 [Not refereed][Not invited]
   

  It is clear that facial expressions are important on face-to-face communication. Humans can not only guessother person's psychological state from facial expressions but can also give own intentions to other personsby using them. If users can use facial expressions to a computer and the computer can correctly recognizethem, an effective human interface can be constructed. Therefore, it is necessary to establish an effectivefacial expression recognition technique from facial image data. In this paper, we propose an application ofthe MTS (Mahalanobis-Taguchi-System) method for facial expression recognition. Especially, we treat thefacial expression recognition from stationary facial image data. The NITS method is a statistical patternrecognition method using the Mahalanobis distance. This method can consider the correlation among eachattribute in the recognition, and can optimize the number of attributes based on the results of recognition.We also propose an optimization method with the genetic algorithms. We construct the recognition systembased on the MTS method, and then evaluate the effectiveness of the proposed methods through practicalexperiments. The experimental results revealed that our proposed methods could correctly recognize thefacial expressions and could effectively optimize the number of attributes.
• Multiple ant colonies algorithm based on colony level interactions

  H Kawamura, M Yamamoto, K Suzuki, A Ohuchi

  IEICE TRANSACTIONS ON FUNDAMENTALS OF ELECTRONICS COMMUNICATIONS AND COMPUTER SCIENCES E83A (2) 371 - 379 0916-8508 2000/02 [Refereed][Not invited]
   

  Recently, researchers in various fields have shown interest in the behavior of creatures from the viewpoint of adaptiveness and flexibility. Ants, known as social insects, exhibit collective behavior in performing tasks that can not be carried out by an individual ant. In ant colonies. chemical substances, called pheromones, are used as a way to communicate important information on global behavior. For example. ants looking for food lay the way back to their nest with a specific type of pheromone. Other ants can follow the pheromone trail and find their way to baits efficiently. In 1991, Colorni et al. proposed the ant algorithm for Traveling Salesman Problems (TSPs) by using the analogy of such foraging behavior and pheromone communication. In the ant algorithm, there is a colony consisting of many simple ant agents that continuously visit TSP cities with opinions to prefer subtours connecting near cities and they lay strong pheromones. The ants completing their tours lay pheromones of various intensities with passed subtours according to distances. Namely, subtours in TSP tourns that have the possibility of being better tend to have strong pheromones, so the ant agents specify good regions in the search space by using this positive feedback mechanism. In this paper, we propose a multiple ant colonies algorithm that has been extended from the ant algorithm. This algorithm as several ant colonies for solving a TSP, while the original has only a single ant colony. Moreover, two kinds of pheromone effects, positive and negative pheromone effects, are introduced as the colony-level interactions. As a result of colony-level interactions, the colonies can exchange good schemata for solving a problem and can maintain their own variation in the search process. The proposed algorithm shows better performance than the original algorithm with almost the same agent strategy used in both algorithms except for the introduction of colony-level interactions.
• A genetic algorithm for the oprimal sequential partitioning problem

  ARAKI Hajime, KAJI Taichi, YAMAMOTO Masahito, SUZUKI Keiji, OHUCHI Azuma

  The Transactions of the Institute of Electrical Engineers of Japan. C 電気学会 120 (2) 215 - 221 0385-4221 2000/02/01 [Not refereed][Not invited]
   

  The optimal sequential partitioning problem is defined as the problem to find the minimum cost partitionof the nodes of a directed acyclic graph into subsets of a given size, subject to the constraint that the precedence relationships among the elements are satisfied. The heuristic algorithm based on a tabu search for thisproblem has been proposed (2). However, there is a tendency for the solutions obtained using the tabu searchapproach to be trapped in bad local optima in the parallel graphs with random costs of edgesIn this paper we present the genetic algorithm for the optimal sequential partitioning problem. We developeffective two point partial order crossover satisfying sequential conditions, which preserve better block thathas the larger sum of edge costs of block. In this crossover we introduce roulette selection method to escapelocal optima. We also assess the effectiveness of the developed algorithm. The results show that this proposedalgorithm outperforms, in terms of solution quality, any other algorithm using tabu search.
• Harmony Team.

  Hiroyuki Iizuka, Masatoshi Hiramoto, Hidenori Kawamura, Masahito Yamamoto, Azuma Ohuchi

  RoboCup 2000: Robot Soccer World Cup IV Springer 449 - 452 2000 [Refereed][Not invited]
  
• A Security System for Human Genome Information Encoded by Chemicals, Not by Electronic Codes

  Kawazoe Yumi, Shiba Toshikazu, Yamamoto Masahito, Ohuchi Azuma

  GI Japanese Society for Bioinformatics 11 464 - 465 0919-9454 2000
• DNA Solution of the Shortest Path Problem by Concentration Control

  Yamamoto Masahito, Matsuura Nobuo, Shiba Toshikazu, Ohuchi Azuma

  GI Japanese Society for Bioinformatics 11 466 - 467 0919-9454 2000
• A study on evolutionary emergence of pheromone communication on ants war

  H Kawamura, M Yamamoto, K Suzuki, A Ohuchi

  INTELLIGENT AUTONOMOUS SYSTEMS 6 527 - 534 2000 [Refereed][Not invited]
   

  In this paper, we focus on evolutionary emergence of communication among multi-agents. As the stage of investigation, we prepare the ants war which needs artificial ant agents to interact each other to win the opponent. Ant agents are constructed with 2-layers neural networks, and evolved by genetic algorithm. Throughout several trials of evolutionary processes, we observed the emergence of two types of pheromones, i.e., the attractive pheromone and the repulsive pheromone. The evolved pheromones were very effective when used in larger number of agents, and this fact represents the emergence of collective intelligence and pheromone communication. According to these results, the collective intelligence and communication among agents are discussed.
• Tsutida, Y., Yamamoto, M., Kawamura, H. and Ohuchi, A.: "Cooperative Task Processing by Separating and Fusing Multi-Mobile-agents", Proceedings of International Technical Conference on Circuits/Systems,Computers and Communications, 965-968 (2000)*

  2000 [Not refereed][Not invited]
  
• Ahmad, J., Yamamoto, M. and Ohuchi, A.: "Evolutionary Algorithms for Nurse Scheduling Problem", Congress on Evolutionary Computation 2000, 1:196-203 (2000)*

  2000 [Not refereed][Not invited]
  
• Iizuka, H., Suzuki, K., Yamamoto, M. and Ohuchi, A.: "Emergence of Negotiating Words between Adaptive Agents", Supplement book of Simulated Adaptive Systems 2000 Proceedings, 285-294 (2000)*

  2000 [Not refereed][Not invited]
  
• Yamamoto, M., Matsuura, N., Shiba, T. and Ohuchi, A.: "DNA Solution of the Shortest Path Problem by Concentration Control", Genome Informatics 2000, Tokyo (Japan), pp. 466-467 (2000)*

  2000 [Not refereed][Not invited]
  
• Kawamura, H., Yamamoto M., Suzuki, K. and Ohuchi, A.: "A Study on Evolutionary Emergence of Pheromone Communication on Ants War", Intelligent Autonomous Systems 6 (IAS-6), E. Pagello et al. (Eds.), IOS Press, 527-534 (2000)*

  2000 [Not refereed][Not invited]
  
• Iizuka, H., Suzuki, K., Yamamoto, M. and Ohuchi, A.: "Analysis of Collective Behavior in Selecting Game", Proceedings of The Fourth Japan-Australia Joint Workshop on Intelligent and Evolutionary Systems, 164-170 (2000)*

  2000 [Not refereed][Not invited]
  
• Motoyama, K., Suzuki, K., Yamamoto, M. and Ohuchi, A: "Effects of Evolutionary Configuration of Reinforcement Learning Applied to Airship Control", Intelligent Autonomous Systems 6 (IAS-6), E. Pagello et al. (Eds.), IOS Press, 567-572 (2000)*

  2000 [Not refereed][Not invited]
  
• Iizuka, H., Suzuki, K., Yamamoto, M. and Ohuchi, A.: "Learning of Virtual Words Utilized in Negotiation Process between Agents", IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences, E83-A(6):1075-1082 (2000)*

  2000 [Not refereed][Not invited]
  
• Iizuka, H., Suzuki, K., Yamamoto, M. and Ohuchi, A.: "Formation of Interdependence in Selecting Game", Proceedings of International Technical Conference on Circuits/Systems,Computers and Communications, 80-83 (2000)*

  2000 [Not refereed][Not invited]
  
• Hiramoto, M., Kawamura, H., Yamamoto, M., Suzuki, K. and Ohuchi, A.: "Co-evolutionary Design of Team Level Play in Soccer Server", Proceedings of International Technical Conference on Circuits/Systems,Computers and Communications, 727-730 (2000)*

  2000 [Not refereed][Not invited]
  
• Motoyama, K., Suzuki, K., Yamamoto, M. and Ohuchi, A.: "Evolutionary Design of Learning State Space for Small Airship Control", Animals to Animats 6, J. A. Meyer et al. (Eds.), The MIT Press, 307-316 (2000)*

  2000 [Not refereed][Not invited]
  
• Yamamoto, M., Yamashita, J., Shiba, T., Hirayama, T., Takiya, S., Suzuki, K., Munekata, M. and Ohuchi, A.: "A Study on the Hybridization Process in DNA Computing", DNA Based Computers 5, DIMACS Series 54 in Discrete Mathematics and Theoretical Comput・・・

  2000 [Not refereed][Not invited]
   

  Yamamoto, M., Yamashita, J., Shiba, T., Hirayama, T., Takiya, S., Suzuki, K., Munekata, M. and Ohuchi, A.:
  "A Study on the Hybridization Process in DNA Computing",
  DNA Based Computers 5, DIMACS Series 54 in Discrete Mathematics and Theoretical Computer Science, 101-110 (2000)*
• Motoyama, K., Suzuki, K., Yamamoto, M. and Ohuchi, A.: "Design of Adaptive Self-Navigated Airship in Simulated Environment", Proceedings of The 2nd Joint International Workshop ORSJ-The Operations Research Society of Japan, Hokkaido Chapter and ASOR-Th・・・

  2000 [Not refereed][Not invited]
   

  Motoyama, K., Suzuki, K., Yamamoto, M. and Ohuchi, A.:
  "Design of Adaptive Self-Navigated Airship in Simulated Environment",
  Proceedings of The 2nd Joint International Workshop ORSJ-The Operations Research Society of Japan, Hokkaido Chapter and ASOR-The Australlian Society for Operations Research Inc. Queensland Branch, 26-33 (2000)*
• Yamashita, T., Yamamoto, M. and Ohuchi, A.: "Evolution of Cooperation in Dynamic Model of Distributed Social Dilemma", Proceedings of the 2nd Joint International Workshop ORSJ-The Operations Research Society of Japan, Hokkaido Chapter and ASOR-The Aust・・・

  2000 [Not refereed][Not invited]
   

  Yamashita, T., Yamamoto, M. and Ohuchi, A.:
  "Evolution of Cooperation in Dynamic Model of Distributed Social Dilemma",
  Proceedings of the 2nd Joint International Workshop ORSJ-The Operations Research Society of Japan, Hokkaido Chapter and ASOR-The Australian Soceity for Operations Reaserch Inc. Queensland Branch, pp. 152-159 (2000)*
• Ahmad, J., Yamamoto, M. and Ohuchi, A.: "Design of the Mutation Operator for Nurse Scheduling Problem with Pareto Ranking Scheme", Proceedings of the 2nd Joint International Workshop ORSJ-The Operations Research Society of Japan, Hokkaido Chapter and・・・

  2000 [Not refereed][Not invited]
   

  Ahmad, J., Yamamoto, M. and Ohuchi, A.:
  "Design of the Mutation Operator for Nurse Scheduling Problem with Pareto Ranking Scheme",
  Proceedings of the 2nd Joint International Workshop ORSJ-The Operations Research Society of Japan, Hokkaido Chapter and ASOR-The Australian Soceity for Operations Reaserch Inc. Queensland Branch, 120-127 (2000)*
• Kawamura, H., Yamamoto, M. and Ohuchi, A.: "Improved Multiple Ant Colonies Algorithm for Traveling Salesman Problems", Proceedings of the 2nd Joint International Workshop ORSJ-The Operations Research Society of Japan, Hokkaido Chapter and ASOR-The Au・・・

  2000 [Not refereed][Not invited]
   

  Kawamura, H., Yamamoto, M. and Ohuchi, A.:
  "Improved Multiple Ant Colonies Algorithm for Traveling Salesman Problems",
  Proceedings of the 2nd Joint International Workshop ORSJ-The Operations Research Society of Japan, Hokkaido Chapter and ASOR-The Australian Soceity for Operations Reaserch Inc. Queensland Branch, pp. 74-81 (2000)*
• Nagao, M., Yamamoto, M., Suzuki, K. and Ohuchi, A.: "Evaluation of Face Identification System based on Division of Image Region", Proceedings of the 2nd Joint International Workshop ORSJ-The Operations Research Society of Japan, Hokkaido Chapter and A・・・

  2000 [Not refereed][Not invited]
   

  Nagao, M., Yamamoto, M., Suzuki, K. and Ohuchi, A.:
  "Evaluation of Face Identification System based on Division of Image Region",
  Proceedings of the 2nd Joint International Workshop ORSJ-The Operations Research Society of Japan, Hokkaido Chapter and ASOR-The Australian Soceity for Operations Reaserch Inc. Queensland Branch, 301-308 (2000)*
• Yamamoto, M. Kawamura, H. and Ohuchi, A.: "Improved Ant Algorithm by Evolving Ant Agents", Proceedings of the 2nd Joint International Workshop ORSJ-The Operations Research Society of Japan, Hokkaido Chapter and ASOR-The Australian Soceity for Operatio・・・

  2000 [Not refereed][Not invited]
   

  Yamamoto, M. Kawamura, H. and Ohuchi, A.:
  "Improved Ant Algorithm by Evolving Ant Agents",
  Proceedings of the 2nd Joint International Workshop ORSJ-The Operations Research Society of Japan, Hokkaido Chapter and ASOR-The Australian Soceity for Operations Reaserch Inc. Queensland Branch, 66-73 (2000)*
• DNA computing and its implementation

  YAMAMOTO Masahito, SHIBA Toshikazu, OHUCHI Azuma

  Bioscience & industry バイオインダストリ-協会 57 (3) 27 - 30 0914-8981 1999/03/01 [Not refereed][Not invited]
  
• Ants war with evolutive pheromone style communication

  H Kawamura, M Yamamoto, KJ Suzuki, A Ohuchi

  ADVANCES IN ARTIFICIAL LIFE, PROCEEDINGS 1674 639 - 643 0302-9743 1999 [Refereed][Not invited]
   

  This paper is concerned about the origin of pheromone communication in complex societies, e.g., colonies of real ants and bees. The aim of the work is to study whether pheromone communication among artificial ant agents in a cooperative foraging scenario can arise simply by letting selection favor successfully foraging genotypes. For such aim. we introduce the ants war in which ant agents foraging more food items than the opponent can survive to next generation. In the experiments, we confirmed the emergence of pheromone communication without a specific predefined one.
• Detecting system of repeating regions in a protein sequence

  Sakurada T., Yamamoto M., Suzuki K., Ohuchi A.

  Seibutsu Butsuri 一般社団法人 日本生物物理学会 39 S172  0582-4052 1999
• Hirayama, T., Shiba, T., Yamamoto, M., Tsutsumi, K., Takiya, S., Munekata, M., Suzuki, K., and Ohuchi, A.: "An Analysis of DNA-based Computing Process" Proceedings of AROB'99 (The Fourth International Symposium on Artificial Life and Robotics, pp. 358・・・

  1999 [Not refereed][Not invited]
   

  Hirayama, T., Shiba, T., Yamamoto, M., Tsutsumi, K., Takiya, S., Munekata, M., Suzuki, K., and Ohuchi, A.:
  "An Analysis of DNA-based Computing Process"
  Proceedings of AROB'99 (The Fourth International Symposium on Artificial Life and Robotics, pp. 358-361 (1999)
• Yamamoto, M., Yamashita, J., Shiba, T., Hirayama, T., Takiya, S., Suzuki, K., Munekata, M., and Ohuchi, A.: "A Study on the Hybridization Process in DNA Computing" Preliminary Proceedings of DNA Based Computers 5, pp. 99-108 (1999)

  1999 [Not refereed][Not invited]
  
• Hirayama, T., Shiba, T., Yamamoto, M., Tsutsumi, K., Suzuki, K., Takiya, S., Munekata, M., and Ohuchi, A.: "Experimental Results in DNA Computation: solution of an HPP with eight vertices" Preliminary Proceedings of DNA Based Computers 5, p. 249 (1999)

  1999 [Not refereed][Not invited]
  
• Jan, A., Yamamoto, M., Suzuki, K., and Ohuchi, A.: "Evaluation Strategy for Nurse Scheduling Problem with GA" Proceedings of the 15th National Conference of ASOR, incorporative ASOR Queensland Branch and ORSJ Hokkaido Chapter Joint Workshop, pp. 615-62・・・

  1999 [Not refereed][Not invited]
   

  Jan, A., Yamamoto, M., Suzuki, K., and Ohuchi, A.:
  "Evaluation Strategy for Nurse Scheduling Problem with GA"
  Proceedings of the 15th National Conference of ASOR, incorporative ASOR Queensland Branch and ORSJ Hokkaido Chapter Joint Workshop, pp. 615-628 (1999)
• Nagao, M., Yamamoto, M., Suzuki, K., and Ohuchi, A.: "A Robust Face Identification System Using MTS" Proceedings of 17th Annual ASI's Taguchi Methods Symposium, pp. 124-142 (1999)

  1999 [Not refereed][Not invited]
  
• Yamamoto, M., Yamashita, J., Shiba, T., Munekata, M., Takiya, S., Suzuki, K., and Ohuchi, A.: "An Analysis of the Hybridization Process in DNA Computing" Proceedings of the ITC-CSCC'99 (The International Technical Conference on Circuits/Systems, Comput・・・

  1999 [Not refereed][Not invited]
   

  Yamamoto, M., Yamashita, J., Shiba, T., Munekata, M., Takiya, S., Suzuki, K., and Ohuchi, A.:
  "An Analysis of the Hybridization Process in DNA Computing"
  Proceedings of the ITC-CSCC'99 (The International Technical Conference on Circuits/Systems, Computers and Communications, pp. 359-362 (1999)
• Yamamoto, M., Suzuki, K., and Ohuchi, A.: "An Acquisition of Evaluation Function for Shogi by learning of Self-play" Proceedings of the 15th National Conference of ASOR, incorporative ASOR Queensland Branch and ORSJ Hokkaido Chapter Joint Workshop, pp.・・・

  1999 [Not refereed][Not invited]
   

  Yamamoto, M., Suzuki, K., and Ohuchi, A.:
  "An Acquisition of Evaluation Function for Shogi by learning of Self-play"
  Proceedings of the 15th National Conference of ASOR, incorporative ASOR Queensland Branch and ORSJ Hokkaido Chapter Joint Workshop, pp. 1413-1421 (1999)
• Motoyama, K., Suzuki, K., Yamamoto, M., and Ohuchi, A.: "Evolutionary State Space Configuration with Reinforcement Learning for Adaptive Airship Control" Proceedings of the Third Australia-Japan Joint Workshop on Intelligent and Evolutinary Systems, pp・・・

  1999 [Not refereed][Not invited]
   

  Motoyama, K., Suzuki, K., Yamamoto, M., and Ohuchi, A.:
  "Evolutionary State Space Configuration with Reinforcement Learning for Adaptive Airship Control"
  Proceedings of the Third Australia-Japan Joint Workshop on Intelligent and Evolutinary Systems, pp. 131-138 (1999)
• Nagao, M., Yamamoto, M., Suzuki, K., and Ohuchi, A.: "A Robust Face Identification System Using MTS" Robust Engineering, 17th ASI's Taguchi Methods Symposium Proceedings, pp. 124-142 (1999)

  1999 [Not refereed][Not invited]
  
• Kawamura, H., Yamamoto, M., Suzuki, K., and Ohuchi, A.: "Ants War with Evolutive Pheromone Style Communication" Lecture Notes in Artificial Intelligence 1674, 5th European Conference, ECAL'99, pp. 639-643 (1999)

  1999 [Not refereed][Not invited]
  
• Sakurada, T., Yamamoto, M., Suzuki, K., and Ohuchi, A.: "A Detection of Copy Pattern from PIR Protein Sequence Database" Proceedings of the 15th National Conference of ASOR, incorporative ASOR Queensland Branch and ORSJ Hokkaido Chapter Joint Workshop,・・・

  1999 [Not refereed][Not invited]
   

  Sakurada, T., Yamamoto, M., Suzuki, K., and Ohuchi, A.:
  "A Detection of Copy Pattern from PIR Protein Sequence Database"
  Proceedings of the 15th National Conference of ASOR, incorporative ASOR Queensland Branch and ORSJ Hokkaido Chapter Joint Workshop, pp. 1091-1099 (1999)
• Akiyama, N., Suzuki, K., Yamamoto, M., and Ohuchi, A.: "Adaptive Positioning of Soccer Agents with Hybrid Learning System" Proceedings of AROB'99 (The Fourth International Symposium on Artificial Life and Robotics, pp. 759-762 (1999)

  1999 [Not refereed][Not invited]
  
• Iizuka, H., Suzuki, K., Yamamoto, M., and Ohuchi, A.: "Development of Competitive Social Behavior Artificial Society" Proceedings of the 15th National Conference of ASOR, incorporative ASOR Queensland Branch and ORSJ Hokkaido Chapter Joint Workshop, pp・・・

  1999 [Not refereed][Not invited]
   

  Iizuka, H., Suzuki, K., Yamamoto, M., and Ohuchi, A.:
  "Development of Competitive Social Behavior Artificial Society"
  Proceedings of the 15th National Conference of ASOR, incorporative ASOR Queensland Branch and ORSJ Hokkaido Chapter Joint Workshop, pp. 582-594 (1999)
• Kawamura, H., Yamamoto, M., Suzuki, K., and Ohuchi, A.: "Distributed Scheduling Algorithm with Multi Agent for Vehicle Scheduling Problems" Proceedings of the 15th National Conference of ASOR, incorporative ASOR Queensland Branch and ORSJ Hokkaido Chap・・・

  1999 [Not refereed][Not invited]
   

  Kawamura, H., Yamamoto, M., Suzuki, K., and Ohuchi, A.:
  "Distributed Scheduling Algorithm with Multi Agent for Vehicle Scheduling Problems"
  Proceedings of the 15th National Conference of ASOR, incorporative ASOR Queensland Branch and ORSJ Hokkaido Chapter Joint Workshop, pp. 664-676 (1999)
• Nakatsugawa, M., Yamamoto, M., Suzuki, K., Ohuchi, A., Dan, J., and Teshima, S.: "Prediction of Kan-Sei Model using MTS" Proceedings of the 15th National Conference of ASOR, incorporative ASOR Queensland Branch and ORSJ Hokkaido Chapter Joint Workshop,・・・

  1999 [Not refereed][Not invited]
   

  Nakatsugawa, M., Yamamoto, M., Suzuki, K., Ohuchi, A., Dan, J., and Teshima, S.:
  "Prediction of Kan-Sei Model using MTS"
  Proceedings of the 15th National Conference of ASOR, incorporative ASOR Queensland Branch and ORSJ Hokkaido Chapter Joint Workshop, pp. 914-926 (1999)
• Jan, A., Yamamoto, M., Suzuki, K., and Ohuchi, A.: "Nurse Scheduling Problem Applied to GA with Improved Parato Selection Scheme" Proceedings of the ITC-CSCC'99 (The International Technical Conference on Circuits/Systems, Computers and Communications, ・・・

  1999 [Not refereed][Not invited]
   

  Jan, A., Yamamoto, M., Suzuki, K., and Ohuchi, A.:
  "Nurse Scheduling Problem Applied to GA with Improved Parato Selection Scheme"
  Proceedings of the ITC-CSCC'99 (The International Technical Conference on Circuits/Systems, Computers and Communications, pp. 355-358 (1999)
• Murata, T., Yamamoto, M., Suzuki, K., and Ohuchi, A.: "Team Plays of Soccer Agents based on Evolutionary Dynamic Formations" Proceedings of AROB'99 (The Fourth International Symposium on Artificial Life and Robotics, pp. 354-357 (1999)

  1999 [Not refereed][Not invited]
  
• Tanaka, S., Yamamoto, M., Suzuki, K., and Ohuchi, A.: "Application of Mahalanobis-Taguchi System to the Prediction of the Prevalence of Infectious Diseases" Robust Engineering, 17th ASI's Taguchi Methods Symposium Proceedings, pp. 143-157 (1999)

  1999 [Not refereed][Not invited]
  
• Iizuka, H., Suzuki, K., Yamamoto, M., and Ohuchi, A.: "Learning of Words in Negotiation between Autonomous Agents" Proceedings of IEEE SMC'99 (1999 IEEE International Conference on Systems, Man, and Cybernetics), Vol. 1, pp. 598-603 (1999)

  1999 [Not refereed][Not invited]
  
• Nakatsugawa, M., Yamamoto, M., Suzuki, K., and Ohuchi, A.: "A Study on the Construction of Effective Mahalanobis Space" Proceedings of 17th Annual ASI's Taguchi Methods Symposium, pp. 110-123 (1999)

  1999 [Not refereed][Not invited]
  
• Nagao, M., Yamamoto, M., Suzuki, K., and Ohuchi, A.: "Acceleration of Evolutionary Image Retrieval System - Introduction of Facial Expression Recognition" Proceedings of the 15th National Conference of ASOR, incorporative ASOR Queensland Branch and ORS・・・

  1999 [Not refereed][Not invited]
   

  Nagao, M., Yamamoto, M., Suzuki, K., and Ohuchi, A.:
  "Acceleration of Evolutionary Image Retrieval System - Introduction of Facial Expression Recognition"
  Proceedings of the 15th National Conference of ASOR, incorporative ASOR Queensland Branch and ORSJ Hokkaido Chapter Joint Workshop, pp. 898-913 (1999)
• Iizuka, H., Suzuki, K., Yamamoto, M., and Ohuchi, A.: "Negotiation Strategies with Learning of Words" Proceedings of the ITC-CSCC'99 (The International Technical Conference on Circuits/Systems, Computers and Communications, pp. 1222-1225 (1999)

  1999 [Not refereed][Not invited]
  
• Nagao, M., Yamamoto, M., Suzuki, K., and Ohuchi, A.: "MTS Approach to Facial Image Recognition" Proceedings of IEEE SMC'99 (1999 IEEE International Conference on Systems, Man, and Cybernetics), Vol. 2, pp. 937-942 (1999)

  1999 [Not refereed][Not invited]
  
• Tanaka, S., Yamamoto, M., Suzuki, K., and Ohuchi, A.: "Application of Mahalanobis-Taguchi System to the Prediction of the Prevalance of Infectious Diseases" Proceedings of 17th Annual ASI's Taguchi Methods Symposium, pp. 143-157 (1999)

  1999 [Not refereed][Not invited]
  
• Nakatsugawa, M., Yamamoto, M., Suzuki, K., and Ohuchi, A.: "A Study on the Construction Effective Mahalanobis Space" Robust Engineering, 17th ASI's Taguchi Methods Symposium Proceedings, pp. 110-123 (1999)

  1999 [Not refereed][Not invited]
  
• Tsuchida, Y., Suzuki, K., Yamamoto, M., and Ohuchi, A.: "Development of Separation and Fusion Functions for Multi-Mobile Agent Programming" Proceedings of the ITC-CSCC'99 (The International Technical Conference on Circuits/Systems, Computers and Commun・・・

  1999 [Not refereed][Not invited]
   

  Tsuchida, Y., Suzuki, K., Yamamoto, M., and Ohuchi, A.:
  "Development of Separation and Fusion Functions for Multi-Mobile Agent Programming"
  Proceedings of the ITC-CSCC'99 (The International Technical Conference on Circuits/Systems, Computers and Communications, pp. 486-489 (1999)
• A study on the hybridization process in DNA computing.

  Masahito Yamamoto, Jin Yamashita, Toshikazu Shiba, Takuo Hirayama, Shigeharu Takiya, Keiji Suzuki, Masanabu Munekata, Azuma Ohuchi

  DNA Based Computers, Proceedings of a DIMACS Workshop, New Brunswick, New Jersey, USA, June 14-15, 1999 DIMACS/AMS 101 - 110 1999 [Refereed][Not invited]
  
• Interactive Evolutionary Computing. Evaluation of the Image Retrieval System Using Interactive Genetic Algorithm.

  長尾光悦, 山本雅人, 鈴木恵二, 大内東

  人工知能学会誌 社団法人人工知能学会 13 (5) 720 - 727 0912-8085 1998/09 [Not refereed][Not invited]
   

  In the conventional image retrieval, the user has performed the retrieval by using linguistic keywords. However, it is difficult to use this method in the image retrieval treating the user's subjectivity like the impression received from images. Recently, as one of the method treating the user's subjectivity, the interactive genetic algorithms is researched. In this paper, we propose the image retrieval system using the interactive genetic algorithms in the retrieval treating the personal subjectivity. Using the combination of the artificial selection used in the conventional interactive genetic algorithms and natural selection, the number of the branch from a certain generation could be increased. Moreover, the use of the retrieval history can give the user the effective retrieval without performing the complex evaluation of the presented images. We evaluate the system through the experiment using the subjects. In addition, we compare the proposed system with the system using the conventional interactive genetic algorithms which decides the parents by using artificial selection.
• Evaluation of the Image Retrieval System Using Interactive Genetic Algorithm("Interactive Evolutionary Computing")

  Nagao Mitsuyoshi, Yamamoto Masahito, Suzuki Keiji, Ohuchi Azuma

  Journal of Japanese Society for Artificial Intelligence 社団法人人工知能学会 13 (5) 720 - 727 0912-8085 1998/09/01 [Not refereed][Not invited]
   

  In the conventional image retrieval, the user has performed the retrieval by using linguistic keywords. However, it is difficult to use this method in the image retrieval treating the user's subjectivity like the impression received from images. Recently, as one of the method treating the user's subjectivity, the interactive genetic algorithms is researched. In this paper, we propose the image retrieval system using the interactive genetic algorithms in the retrieval treating the personal subjectivity. Using the combination of the artificial selection used in the conventional interactive genetic algorithms and natural selection, the number of the branch from a certain generation could be increased. Moreover, the use of the retrieval history can give the user the effective retrieval without performing the complex evaluation of the presented images. We evaluate the system through the experiment using the subjects. In addition, we compare the proposed system with the system using the conventional interactive genetic algorithms which decides the parents by using artificial selection.
• A reduction method for theorem proving based on the partial-instantiation technique

  M Yamamoto, A Ohuchi

  DECISION SUPPORT SYSTEMS 23 (2) 189 - 199 0167-9236 1998/06 [Refereed][Not invited]
   

  Logical inference is of central importance in the information and decision science. First-order predicate inference (theorem proving) provides more powerful representation of models and of knowledge, but presents a hard computational problem. We extend Jeroslow's theorem-proving procedure in function-free formulas to be applicable to full first-order predicate formulas. Therefore, proposed theorem-proving procedure can be more flexible tool for data handling and inferences. Our proposed procedure is based on the partial-instantiation technique, which reduces a first-order predicate clausal-form formula to an incrementally augmented propositional formula and proves the theorem by checking the satisfiability of the propositional formula. We also show the completeness of the proposed procedure, i.e., it can detect the unsatisfiability of an input formula. Furthermore, we compare it with resolution-style theorem-proving program OTTER and show the efficiency of the proposed procedure. (C) 1998 Elsevier Science B.V. All rights reserved.
• Cooperative search based on pheromone communication for Vehicle Routing Problems

  H Kawamura, M Yamamoto, T Mitamura, K Suzuki, A Ohuchi

  IEICE TRANSACTIONS ON FUNDAMENTALS OF ELECTRONICS COMMUNICATIONS AND COMPUTER SCIENCES E81A (6) 1089 - 1096 0916-8508 1998/06 [Refereed][Not invited]
   

  In this paper, we propose a new cooperative search algorithm based on pheromone communication for solving the Vehicle Routing Problems. In this algorithm, multi-agents can partition the problem cooperatively and search partial solutions independently using pheromone communication, which mimics the communication method of real ants. Through some computer experiments the cooperative search of multi-agents is confirmed.
• Collective search algorithm with pheromone communication for Vehicle Routing Problems

  H Kawamura, M Yamamoto, K Suzuki, A Ohuchi

  INTELLIGENT AUTONOMOUS SYSTEMS 587 - 594 1998 [Refereed][Not invited]
   

  In this paper, we propose the collective search algorithm based on pheromone communication for Vehicle Routing Problems. This algorithm is designed using multi-agent system, in which agents autonomously and independently search the partial solution of given problem to decrease their searching load. Pheromone communication imitated from social insects, i.e., real ants and bee, is used as the communication method between agents to emerge the cooperative behavior. Throughout computer experiments, we confirm the effectiveness of proposed algorithm for view point of cooperative behavior.
• Ecological approach to retrieving agents for ambiguous data

  M Nagao, M Yamamoto, K Suzuki, A Ohuchi

  INTELLIGENT AUTONOMOUS SYSTEMS 631 - 638 1998 [Refereed][Not invited]
   

  Recently, the image data has been treated in the information retrieval in accordance with the diversification of the kind of information. The retrieval of image data is different from the retrieval of text data because the subjectivity or kan-sei, and ambiguity have to be treated in the image data retrieval. In this paper, we propose the multi-agent approach for such image data retrieval. This multi-agent model is implemented by creating the artificial ecosystem with the evolving agents that cooperate and compete for the image data retrieval task. The multi-agents model can provide the retrieval reflecting the subjectivity, ambiguity and kan-sei, and the ability to quickly adapt in various situations.
• 「インタラクティブGAに基づく画像検索システムの評価」

  人工知能学会誌 13 (5) 720 - 727 1998 [Not refereed][Not invited]
  
• H.Kawamura,M.Yamamoto,K.Suzuki,T.Mitamura and A.Ohuchi:"Cooperative Search Based on Pheromone Communication for Vehicle Routing Problems”,IEICE Transactions on Funfamentals of Electronics,Communications and Computer Sciences,E81-A(6):1089-1096(1998)

  1998 [Not refereed][Not invited]
  
• M.Nagao,M.Yamamoto,K.Suzuki and A.Ohuchi:"Multi-Agents Approach for Subjective Image Retrieval”,Proceedings of ITC-CSCC'98:1123-1126(1998)

  1998 [Not refereed][Not invited]
  
• H.Kawamura,M.Yamamoto,K.Suzuki and A.Ohuchi:"Collective Search Algorithm with Pheromone Communication for Vehicle Routing Problems”,Intelligent Autonomous Systems IAS-5,Y.Kakazu et al.(eds.),IOS Press,587-594(1998)

  1998 [Not refereed][Not invited]
  
• M.Yamamoto and A.Ohuchi:"A Reduction Method for Theorem Proving based on the Partial-Instantiation Technique”,Decision Support Systems,23(2):189-199(1998)

  1998 [Not refereed][Not invited]
  
• H.Kawamura,M.Yamamoto,K.Suzuki and A.Ohuchi:"Bottom-Up Planning Approach Based on Distributed Pheromone Information”,Proceedings of ITC-CSCC'98:1475-1478(1998)

  1998 [Not refereed][Not invited]
  
• M.Nagao,M.Yamamoto,K.Suzuki and A.Ohuchi:"Ecological Approach to Retrieving Agents for Ambiguous Data”,Intelligent Autonomous Systems IAS-5,(Y.Kakazu et al.Eds.),IOS Press,631-638(1998)

  1998 [Not refereed][Not invited]
  
• M.Yamamoto,H.Kawamura,K.Suzuki and A.Ohuchi:"Collective Approach for Combinatorial Optimization Problems”,Proceedings of ITC-CSCC'98:1479-1482(1998)

  1998 [Not refereed][Not invited]
  
• M.Yamamoto,N.Okada,K.Suzuki and A.Ohuchi:" Multiple Alignment of Amino Acid Sequences by Parallel Genetic Algorithm”,Intelligent Autonomous Systems ,IOS Press,Y.Kakazu et al.(Eds.),IOS Press,743－748(1998)

  1998 [Not refereed][Not invited]
  
• T.Sakurada,M.Yamamoto,K.Suzuki and A.Ohuchi:"An Introduction of Copy Pattern in Amino Acid Sequences”,Proceedings of ITC-CSCC'98:277-280(1998)

  1998 [Not refereed][Not invited]
  
• A.Jan,M.Yamamoto,K.Suzuki and A.Ohuchi:"A Study on Fitness Landscape of Genetic Algorithm for Optimization Problems”,Proceedings of ITC-CSCC'98:1235-1238(1998)

  1998 [Not refereed][Not invited]
  
• Theorem proving based on the partial instantiation technique

  Masahito Yamamoto, Azuma Ohuchi, Toshio Ohyanagi

  Electronics and Communications in Japan, Part III: Fundamental Electronic Science (English translation of Denshi Tsushin Gakkai Ronbunshi) 79 (4) 110 - 118 1042-0967 1996 [Refereed][Not invited]
   

  For studies toward the automated theorem proving, various methods and strategies have been presented based on the resolution principle proposed by Robinson in 1965. Most of the theorem-proving systems at present are based on this resolution principle. In contrast to this, Jeroslow proposed the partial instantiation technique in 1988. The method proposed by Jeroslow, however, has a problem in that only the formula not containing function symbols is considered and the efficiency is low since the clause form is not assumed. The authors improved Jeroslow's method. A procedure was proposed where satisfiability is decided for the formula of the clause form not containing function symbols, and the effectiveness of the method is demonstrated. This paper extends the above procedure and proposes a theorem-proving procedure so that the formula containing function symbols can be handled. A proof is given that the proposed procedure is complete. A comparison experiment is executed, and the effectiveness of the proposed procedure is investigated.
• Theorem Proving Based on the Partial Instantiation Technique

  Yamamoto Masahito, Ohyanagi Toshio, Ohuchi Azuma

  The Transactions of the Institute of Electronics, Information and Communication Engineers. A 一般社団法人電子情報通信学会 78 (7) 864 - 871 0913-5707 1995/07/25 [Not refereed][Not invited]
   

  定理自動証明に対するこれまでの研究として,1965年にRobinsonによって提案された導出原理に基づくさまざまな方法,戦略などが提案されており,現在の定理証明システムの多くはこの導出原理に基づいている.これに対して,Jeroslowは1988年に部分例示手法を提案している.しかしながら,Jeroslowの提案した方法は関数記号を含まない論理式のみを対象としていること,また,節形式を前提としていないために効率が悪いことなどの欠点があった.筆者らはこのこのJeroslowの方法を改善して,関数記号を含まない節形式の論理式の充足可能性を判定する手続きを提案して,その有効性を示している.本論文では,この手続きを拡張した定理証明手続きを提案する.すなわち,関数記号を含む論理式を扱えるようにしている.また,本手続きが完全であることの証明を与える.更に,比較実験を行い本手続きの有効性について検討する.
• A procedure for satiosfiability problems based on the partial instantiation technique

  Masahito Yamamoto, Azuma Ohuchi, Toshio Ohyanagi

  Electronics and Communications in Japan (Part III: Fundamental Electronic Science) 78 (9) 94 - 103 1520-6440 1995 [Refereed][Not invited]
   

  When no function symbols occur in a first‐order predicate formula, there exists a procedure to decide the satisfiability of the formula. Examples of such procedures are the method based on Robinson's resolution principle and the method based on the partial instantiation technique by Jeroslow. This paper considers the case where the formula is in clausal form and no function symbols occur in it and proposes a satisfiability decision procedure based on the partial instantiation technique applicable to the considered case. the procedure is based on the partial instantiation technique, as in Jeroslow's method, but aims at the following aspects by utilizing the formula being in clausal form: (1) Davis‐Putnam's method is used in solving the satisfiability problem in the propositional logic (2) the rapid expansion of the formula can be suppressed by expanding the formula with the clause as the unit and (3) the number of unifications is reduced. the proposed method is compared to Jeroslow's method and the method based on the resolution principle, and then the effectiveness is demonstrated. Copyright © 1995 Wiley Periodicals, Inc., A Wiley Company
• A Theorem Proving Procedure based on the Partial In-stantion Technique

  YAMAMOTO MASAHIKO, OHYANAGI TOSHIO, OHUCHI AZUMA

  全国大会講演論文集 一般社団法人情報処理学会 49 (3) 13 - 14 1994/09/20 [Not refereed][Not invited]
   

  Jeroslow は関鍵記号を含まない論理式の充足可能性判定のための部分例示手法の理論的枠組みを提案している.部分例示手法は真理値の割当てを用いることによって節の増加を抑えようとするものである.しかしながら,Jeroslowの方法では関数記号を含む論理式は扱うことができない.本稿では,関数記号を含む論理式に対しての部分例示手法に基づいた定理自動証明手続きを提案する.この手続きは節形式の論理式を扱うが,そのことによって一般性を失うことはなく,むしろ Jeroslow の方法より効率的であることを示す.また,完全性が成り立つことの証明を与えている.さらに,導出原理に基づく方法との比較実験によって本手続きの有効性を示す.
• An Algorithm for .BETA. Clause Satisfiability Problem in Propositional Logic.

  大柳俊夫, 山本雅人, 大内東

  電気学会論文誌 C 電気学会 114 (7/8) 796 - 804 0385-4221 1994/07 [Not refereed][Not invited]
   

  The satisfiability problem ( SAT ) is one of the important problems in the field of computer science, since it is wellknown NP-complete problem. The problem is well studied and many valuable results are reported in the literature.We have already proposed IEMSAT algorithm as one of SAT algorithms. Recently, J. N. Hooker made a study ofresolution for a set of Q clauses. A β clause is a clause that has an additional quantitative condition. The conditionis that a β clause is true if and only if at least number of β literals in the clause are true. He also referred to β SATproblem that is SAT consists of β clauses. He, however, did not propose efficient algorithm for it as yet. This paper intends to present β SAT algorithm ( IEMBSAT ) that is an extended variant of IEMSAT. Somerelations between a β clause and a clause are also clarified. Some computational experiments are made to show theeffectiveness of IEMBSAT.
• SAT Algorithm Based on Implicit Enumeration Method

  Ohyanagi Toshio, Yamamoto Masahito, Ohuchi Azuma

  IPSJ Journal 一般社団法人情報処理学会 34 (12) 2464 - 2473 0387-5806 1993/12/15 [Not refereed][Not invited]
   

  The satisfiability problem (SAT) is one of well-known problems in the field of computer science. Many researchers in this field attempted to develop an algorithm for solving this problem. Among them Davis and Putnam succeeded to develop so-called Davis-Putnam method. Recently some researchers in the field of Operations Research applied mathematical programming theory to SAT. This approach intends to solve SAT by not symbolical computation but numerical one. This paper intends to propose new SAT algorithm based on implicit enumeration method that is one of algorithms for general O-1 integer programming problems. Furthermore, a detailed comparison between the proposed method and Davis-Putnum method is made. The result shows that the proposed method and Davis-Putnum method are closely related. Some computational experiences are also made to verify effectiveness of the proposed method. As a result, the method solved all the test problems faster than Davis-Putnam method and Kamath's method.
• Rubber Hand Illusion下における触覚刺激の時間順序判断

  内野 敬介, 飯塚, 博幸, 山本 雅人

  第15回計測自動制御学会システムインテグレーション部門講演会論文集(SI2014) 185 - 188 [Refereed][Not invited]
  
• 一者と二者間ニューロフィードバックによるトレーニング効果の比較

  宮澤 初穂, 飯塚, 博幸, 山本 雅人

  第15回計測自動制御学会システムインテグレーション部門講演会論文集(SI2014) 164 - 167 [Refereed][Not invited]
  
• コンピュータHexにおける大域的・局所的観点に基づく局面評価関数の分析

  高田 圭, 本庄, 将也, 飯塚, 博幸, 山本 雅人

  第15回計測自動制御学会システムインテグレーション部門講演会論文集(SI2014) 149 - 152 [Refereed][Not invited]
  
• 多者間での身体的相互作用による個性の発現

  齋藤 宗太郎, 飯塚, 博幸, 山本 雅人

  情報処理北海道シンポジウム2014講演論文集 268 - 271 [Refereed][Not invited]
  
• 二者間における協力ニューラルフィードバックトレーニング

  宮澤 初穂, 飯塚, 博幸, 山本 雅人

  情報処理北海道シンポジウム2014講演論文集 64 - 67 [Refereed][Not invited]
  
• 畳み込みニューラルネットワークによる動画データを用いたエージェント行動癖の認識

  遠峰 孝太, 飯塚, 博幸, 山本 雅人

  情報処理北海道シンポジウム2014講演論文集 26 - 29 [Refereed][Not invited]
  
• 筋骨格モデルを用いた筋構造と適応行動の共進化

  松林 涼平, 飯塚, 博幸, 山本 雅人

  第24回インテリジェント・システム・シンポジウム(FAN2014)講演論文集 210 - 213 [Refereed][Not invited]
  
• 自己組織化マップを用いた商品配置法におけるパラメータの最適化

  南 賢一, 飯塚, 博幸, 山本 雅人

  第24回インテリジェント・システム・シンポジウム(FAN2014)講演論文集 152 - 155 [Refereed][Not invited]
  
• 蔵本モデルを用いた鳥群行動のモデル化

  家登 亮多, 飯塚, 博幸, 山本 雅人

  第24回インテリジェント・システム・シンポジウム(FAN2014)講演論文集 100 - 103 [Refereed][Not invited]
  
• 被災がれき量推定に向けた画像情報を利用した建造物の倒壊判定

  利根川, 凛, 飯塚, 博幸, 山本, 雅人, 古川, 正志, 大内 東

  2014年度精密工学会秋季大会学術講演会講演論文集 743 - 744 [Refereed][Not invited]
  
• Hexゲーム戦略におけるUCT探索法の適切なゲーム木展開条件の解析

  三橋 允, 本庄, 将也, 飯塚, 博幸, 山本 雅人

  2014年度精密工学会秋季大会学術講演会講演論文集 739 - 740 [Refereed][Not invited]
  
• 人間と機械の相互学習によるロボット操縦インタフェースの作成

  齋藤 健太郎, 飯塚, 博幸, 山本 雅人

  2014年度精密工学会秋季大会学術講演会講演論文集 69 - 70 [Refereed][Not invited]
  
• 災害廃棄物量推定のための空撮画像内の直線検出を利用した建造物の自動倒壊判定

  利根川, 凛, 飯塚, 博幸, 山本, 雅人, 古川, 正志, 大内 東

  第25回廃棄物資源循環学会研究発表会講演原稿集 109 - 110 [Refereed][Not invited]
  
• ニューラルネットワークとメタヒューリスティクス

  山本 雅人

  日本オペレーションズ・リサーチ学会2014年秋季シンポジウム [Refereed][Not invited]
  
• 観光地における屋外Wi-Fi環境整備の実証実験についてー旭川冬まつりと道庁赤レンガ前庭での事例ー

  山本 雅人, 飯塚, 博幸 伝法 毅

  観光情報学会第9回研究発表会 44 - 47 [Refereed][Not invited]
  
• 割付け規則を用いた遺伝的局所探索によるJSPの解法

  田村 康将, 飯塚, 博幸, 山本 雅人

  日本オペレーションズ・リサーチ学会2014年秋季研究発表会アブストラクト集 66 - 67 [Refereed][Not invited]
  
• 人間と機械の相互作用による共創造型インタフェースの構築

  飯塚 博幸, 斎藤, 健太郎, 山本 雅人

  電子情報通信学会技術研究報告ー第13回クラウドネットワークロボット研究会 17 - 22 [Refereed][Not invited]
  
• 形態進化におけるタスク難易度と進化戦略

  岩館 健司, 鈴木, 育男, 渡辺, 美知子, 山本, 雅人, 古川 正志

  ロボティクス・メカトロニクス講演会2014講演論文集 (Robomec 2014) [Refereed][Not invited]
  
• 海洋バイオマスの運動制御に向けた絡み状態評価指標の設計

  小川 純, 飯塚, 博幸, 山本, 雅人, 古川 正志

  ロボティクス・メカトロニクス講演会2014講演論文集 (Robomec 2014) [Refereed][Not invited]
  
• JSP に対する遺伝的アルゴリズムと割付け規則に基づく 近似解法の提案

  田村 康将, 飯塚, 博幸, 山本 雅人

  ロボティクス・メカトロニクス講演会2014講演論文集 (Robomec 2014) [Refereed][Not invited]
  
• JSP に対する部分的な割り付け規則の適用による局所探索法の提案

  横山 想一郎, 飯塚, 博幸, 山本 雅人

  ロボティクス・メカトロニクス講演会2014講演論文集 (Robomec 2014) [Refereed][Not invited]
  
• 局面ネットワークの媒介中心性に着目したHexゲーム戦略

  高田 圭, 本庄, 将也, 飯塚, 博幸, 山本 雅人

  電子情報通信学会技術報告 113 (459) 7 - 12 [Refereed][Not invited]
  
• 人間と機械の相互学習によるロボット操縦手法の提案

  斎藤 健太郎, 飯塚, 博幸, 山本 雅人

  第13回複雑系マイクロシンポジウム講演論文集 85 - 90 [Refereed][Not invited]
  
• 被災がれき量推定のための画像データを利用した建造物の倒壊領域特定

  利根川, 凛, 飯塚, 博幸, 山本, 雅人, 古川, 正志, 大内 東

  第13回複雑系マイクロシンポジウム講演論文集 69 - 72 [Refereed][Not invited]
  
• ネットワーク指標を用いた Hex 戦略の解析

  高田 圭, 本庄, 将也, 飯塚, 博幸, 山本 雅人

  第13回複雑系マイクロシンポジウム講演論文集 65 - 68 [Refereed][Not invited]
  
• 自律行動を行う仮想ロボットの行動獲得

  大江 亮介, 飯塚, 博幸, 山本 雅人

  2014年度精密工学会春季大会学術講演会講演論文集 1065 - 1066 [Refereed][Not invited]
  
• ゲーム木展開条件に基づくUCT 探索法のHex ゲーム戦略の解析

  三橋 允, 本庄, 将也, 飯塚, 博幸, 山本 雅人

  第13回複雑系マイクロシンポジウム講演論文集 61 - 64 [Refereed][Not invited]
  
• 進化的手法を用いた飛翔ロボットによる群行動の獲得

  家登 亮多, 飯塚, 博幸, 山本 雅人

  2014年度精密工学会春季大会学術講演会講演論文集 1061 - 1062 [Refereed][Not invited]
  
• ネットワークトポロジーを考慮した自己組織化マップを用いた倉庫の商品配置の最適化

  南 賢一, 飯塚, 博幸, 山本 雅人

  2014年度精密工学会春季大会学術講演会講演論文集 1053 - 1054 [Refereed][Not invited]
  
• 被災がれき量推定に向けた航空写真を用いた建造物の変化抽出

  利根川, 凛, 飯塚, 博幸, 山本, 雅人, 古川, 正志, 大内 東

  廃棄物資源循環学会第6回東北支部研究発表会予稿集 31 - 32 [Refereed][Not invited]
  
• 東日本大震災から学ぶ災害リスクに対する事業継続のための経営戦略

  吉成 昇, 上野, 篤, 大柳, 幸彦, 大内, 東, 山本 雅人

  廃棄物資源循環学会第6回東北支部研究発表会予稿集 27 - 28 [Refereed][Not invited]
  
• mage-Based Classification of Severe Obstructive Sleep Apnea Using the Morphology of Upper Airway Soft Tissues

  Tsuyoshi Mikami Kazuya, Yonezawa Yohichiro, Kojima, Masahito Yamamoto, Masashi Furukawa

  2014 International Symposium on Biomedical Imaging (ISBI 2014) [Refereed][Not invited]
  
• ABEGA-2: Improved Attraction Basin Estimating Genetic Algorithm for High Dimensional Space

  Zhuoran Xu, Masahito Yamamoto

  Proceedings of 19th International Symposium on Artificial Life and Robotics AROB 275 - 279 [Refereed][Not invited]
  
• ネットワーク指標を用いたコンピュータHex戦略の開発

  高田 圭, 本庄, 将也, 飯塚, 博幸, 山本 雅人

  情報処理学会論文誌 55 (11) 2421 - 2430 [Refereed][Not invited]
  

Books etc

• Metaheuristics and Natural Computing

  2012
• メタヒューリスティクスとナチュラルコンピューティング

  古川 正志, 渡辺 美知子, 木下 正博, 鈴木 育男, 山本 雅人, 川上 敬 (Joint work)
  コロナ社 2011/12 (ISBN: 4339024619) 195

  
• メタヒューリスティクスと応用

  相吉 英太郎, 安田 恵一郎 
  電気学会 2007/10 (ISBN: 4886862616) 432

  
• 情報学入門―大学で学ぶ情報科学・情報活用・情報社会

  大内 東, 栗原 正仁, 岡部 成玄 
  コロナ社 2006/03 (ISBN: 4339024163) 188

  
• 生命複雑系からの計算パラダイム―アントコロニー最適化法・DNAコンピューティング・免疫システム (相互作用科学シリーズ)

  大内 東, 山本 雅人, 川村 秀憲, 柴 肇一, 高柳 俊明, 當間 愛晃, 遠藤 聡志 (Joint work)
  森北出版 2003/08 (ISBN: 4627850212) 201

  
• マルチエージェントシステムの基礎と応用―複雑系工学の計算パラダイム

  大内 東, 川村 秀憲, 山本 雅人 (Joint work)
  コロナ社 2002/04 (ISBN: 4339023884) 207

  

Conference Activities & Talks

• バルーンロボットにおけるニューラルネットワークを用いたPID制御  [Not invited]

  永田紘也, 飯塚博幸, 山本雅人, 鈴木恵二, 川村秀憲

  電気・情報関係学会北海道支部連合大会講演論文集(CD-ROM)  2016/11
• 畳み込みニューラルネットワークを用いた一人称視点画像による自己位置推定  [Not invited]

  杉中出帆, 飯塚博幸, 山本雅人

  情報科学技術フォーラム講演論文集  2016/08
• ニューラルネットワークを用いたバルーンロボット制御  [Not invited]

  永田紘也, 飯塚博幸, 山本雅人, 鈴木恵二, 川村秀憲

  情報処理学会研究報告(Web)  2016/07
• 動作の分節化を利用した相互学習インタフェース  [Not invited]

  齋藤健太郎, 飯塚博幸, 山本雅人

  精密工学会大会学術講演会講演論文集  2016/03
• Perceptual Crossing実験における知覚と運動への異なる時間遅れに対する社会的相互作用の安定性  [Not invited]

  齋藤宗太郎, 飯塚博幸, 山本雅人

  人工知能学会知識ベースシステム研究会資料  2016/02
• デジタルカーリングにおける局面評価関数の学習  [Not invited]

  加藤修, 飯塚博幸, 山本雅人

  知能メカトロニクスワークショップ講演論文集(CD-ROM)  2016
• 畳み込みニューラルネットワークを用いた運動認識による入力インタフェースの構築  [Not invited]

  麻野将平, 飯塚博幸, 山本雅人

  計測自動制御学会北海道支部学術講演会論文集  2016
• 動作分節の獲得による人間と機械の相互学習インタフェース  [Not invited]

  齋藤健太郎, 飯塚博幸, 山本雅人

  計測自動制御学会北海道支部学術講演会論文集  2016
• 腕左右交換状態におけるゴム手錯覚の生起と触覚刺激の時間順序判断  [Not invited]

  内野敬介, 飯塚博幸, 山本雅人

  計測自動制御学会システムインテグレーション部門講演会(CD-ROM)  2015/12
• Perceptual Crossing実験における触覚刺激に対する時間遅れの影響  [Not invited]

  齋藤 宗太郎, 飯塚, 博幸, 山本 雅人

  情報処理北海道シンポジウム2015講演論文集  2015/10
• 棋譜分析に基づく新規探索手法の提案を目的としたHexアプリケーションの開発  [Not invited]

  高田 圭, 本庄, 将也, 飯塚 博幸

  情報処理北海道シンポジウム2015講演論文集  2015/10
• LSTMとオートエンコーダを用いた感覚統合モデルによる模倣学習  [Not invited]

  野口 渉, 飯塚, 博幸, 山本 雅人

  情報処理北海道シンポジウム2015講演論文集  2015/10
• エンターテインメント飛行のための屋内用バルーンロボットの開発  [Not invited]

  永田 紘也, 飯塚, 博幸, 山本, 雅人, 川村, 秀憲, 鈴木 恵二

  情報処理北海道シンポジウム2015講演論文集  2015/10
• O-024 Automatic Detection of Collapsed Buildings using Image Analysis for Estimating Disaster Debris Amount  [Not invited]

  Tonegawa Rin, Iizuka Hiroyuki, Yamamoto Masahito, Furukawa Masashi, Ohchi Azuma

  情報科学技術フォーラム講演論文集  2015/08
• 不確実性を含むカーリングにおける先読み手法の提案と有効性検証  [Not invited]

  加藤修, 飯塚博幸, 山本雅人

  情報科学技術フォーラム講演論文集  2015/08
• 被災がれき量推定に向けた画像解析を利用した倒壊建造物の自動抽出  [Not invited]

  利根川凛, 飯塚博幸, 山本雅人, 古川正志, 大内東

  情報科学技術フォーラム講演論文集  2015/08
• ミニマックス法に基づく報酬伝搬を用いたモンテカルロ木探索法  [Not invited]

  三橋允, 飯塚博幸, 山本雅人

  精密工学会大会学術講演会講演論文集  2015/08
• A Project on Curling as a Science  [Not invited]

  伊藤毅志, 桝井文人, 宮越勝美, 河村隆, 山本雅人, 竹川佳成, 柳等, 松原仁

  電子情報通信学会技術研究報告  2015/06
• Perceptual Crossing実験における人間と同等の相互作用を形成するAIの解析  [Not invited]

  齋藤宗太郎, 飯塚博幸, 山本雅人

  日本機械学会ロボティクス・メカトロニクス講演会講演論文集(CD-ROM)  2015/05
• STDP則に基づく大脳皮質ニューラルネットの提案  [Not invited]

  岩館健司, 鈴木育男, 渡辺美知子, 山本雅人, 古川正志

  日本機械学会ロボティクス・メカトロニクス講演会講演論文集(CD-ROM)  2015/05
• 触覚刺激の時間順序判断の逆転を利用した非同期刺激によるラバーハンド錯覚の生起  [Not invited]

  内野敬介, 飯塚博幸, 山本雅人

  日本機械学会ロボティクス・メカトロニクス講演会講演論文集(CD-ROM)  2015/05
• ゲーム木探索に基づくカーリングAIの開発  [Not invited]

  加藤修, 飯塚博幸, 山本雅人

  精密工学会大会学術講演会講演論文集  2015/03
• 畳み込みニューラルネットワークを用いた群行動の分類  [Not invited]

  遠峰孝太, 飯塚博幸, 山本雅人

  精密工学会大会学術講演会講演論文集  2015/03
• 戦略の不確実性を考慮したカーリングAIの開発  [Not invited]

  加藤修, 飯塚博幸, 山本雅人

  人工知能学会知識ベースシステム研究会資料  2015/02
• 恒常性ニューラルネットワークを用いた多脚ロボットの未経験変動への適応  [Not invited]

  中井 啓貴, 飯塚, 博幸, 山本 雅人

  第14回複雑系マイクロシンポジウム講演論文集  2015
• カーリング戦略の不確実性を考慮した候補手評価手法  [Not invited]

  加藤 修, 飯塚, 博幸, 山本 雅人

  第14回複雑系マイクロシンポジウム講演論文集  2015
• 二者間におけるニューロフィードバックトレーニングの提案と訓練効果の検証  [Not invited]

  宮澤 初穂, 飯塚, 博幸, 山本 雅人

  第14回複雑系マイクロシンポジウム講演論文集  2015
• 触覚刺激の時間順序判断の逆転を利用した非同期刺激によるラバーバンド錯覚の生起  [Not invited]

  内野 敬介, 飯塚, 博幸, 山本 雅人

  ロボティクス・メカトロニクス講演会2015講演論文集 (Robomec 2015)  2015
• STDP則に基づく大脳皮質ニューラルネットワークの提案  [Not invited]

  岩館 健司, 鈴木, 育男, 渡辺, 美知子, 山本, 雅人, 古川 正志

  ロボティクス・メカトロニクス講演会2015講演論文集 (Robomec 2015)  2015
• 観光地における屋外無線LAN環境の整備と経済効果の検証実験について〜旭川冬まつり2015での事例〜  [Not invited]

  山本 雅人, 飯塚, 博幸 伝法 毅

  第12回観光情報学会全国大会講演予稿集  2015
• 入力予測誤差最小化による相互学習インタフェース  [Not invited]

  斎藤 健太郎, 飯塚, 博幸, 山本 雅人

  エンタテインメントコンピューティングシンポジウム2015論文集  2015
• デジタルカーリングのおけるゲーム木枝刈りの有効性検証  [Not invited]

  加藤 修, 飯塚, 博幸, 山本 雅人

  エンタテインメントコンピューティングシンポジウム2015論文集  2015
• 二者間における協力型ニューロフィードバックトレーニング  [Not invited]

  宮澤初穂, 飯塚博幸, 山本雅人

  情報処理北海道シンポジウム講演論文集  2014/10
• Co-creative User Interface Developed by Mutual Learning of Human and Machine  [Not invited]

  Iizuka Hiroyuki, Saitoh Kentaro, Yamamoto Masahito

  電子情報通信学会技術研究報告. CNR, クラウドネットワークロボット  2014/06 

  The complexity of user interfaces is increasing as the complexity of robot structures becomes higher. This paper proposes a co-creative user interface that can easily control the complex-structured robots despite that the structure of an input device keeps simple. The user interface can be developed through both machine and human learning. The co-creation improves the interface and decreases the learning load of the users. The proposed method is evaluated in terms of controllability of the multi-legged robot. In the end, we discuss co-creation on the user interface.
• 1A1-X05 Influence of task complexity on the evolution strategy of locomotive robot(Evolution and Learning for Robotics)  [Not invited]

  IWADATE Kenji, SUZUKI Ikuo, WATANABE Michiko, YAMAMOTO Masahito, FURUKAWA Masashi

  ロボティクス・メカトロニクス講演会講演概要集  2014/05 

  In this work, we considered the influence of task complexity in the shape evolution of the locomotive robot. Robots were evolved in a virtual physical environment for achieving various tasks. Acquired shapes of robots were classified in 4 types according to the number of legs.
• Strategy of Hex using betweenness centrality in board network  [Not invited]

  TAKADA Kei, HONJO Masaya, IIZUKA Hiroyuki, YAMAMOTO Masahito

  IEICE technical report. Artificial intelligence and knowledge-based processing  2014/02 

  Hex is a simple board game for two players, but the game strategy becomes very complicated. It is known that all positions of Hex can be represented as two networks. The betweenness centrality in the networks is believed to be effective to evaluate the possible next moves as a Hex strategy, but it is not enough. The conventional studies showed that the shortest path between edges is also important. Therefore, we proposed the evaluation function that can evaluate the betweenness centrality and the shortest path at the same time. Our results of games with Hexy or UCT algorithms showed that the proposed method effectively evaluates the current situations of games with those mixed network indices and becomes stronger.
• 生物の恒常性を利用した未経験変動に対する適応  [Not invited]

  飯塚博幸, 山本雅人

  自律分散システム・シンポジウム(CD-ROM)  2014/01
• 人工ニューラルネットワークを用いて獲得されるディスパッチングルールの調査  [Not invited]

  田村 康将, 山本, 雅人, 古川 正志

  第14回計測自動制御学会システムインテグレーション部門講演会(SI2013)講演論文集  2013/12
• 情報伝播における人の振る舞いに由来する伝播遅れの影響  [Not invited]

  小松 琢也, 山本, 雅人, 古川 正志

  第14回計測自動制御学会システムインテグレーション部門講演会(SI2013)講演論文集  2013/12
• 進化計算と局所探索の組み合わせによるジョブショップスケジューリング問題の解法  [Not invited]

  横山 想一郎, 山本, 雅人, 古川 正志

  第14回計測自動制御学会システムインテグレーション部門講演会(SI2013)講演論文集  2013/12
• 巡回セールスマン問題向け並列粒子群最適化の提案  [Not invited]

  本庄 将也, 山本, 雅人

  第14回計測自動制御学会システムインテグレーション部門講演会(SI2013)講演論文集  2013/12
• 画像情報を利用した建造物の変化抽出による被災がれき量推定  [Not invited]

  利根川凛, 山本雅人, 古川正志

  情報処理北海道シンポジウム講演論文集  2013/10
• タブレット型端末を用いた人工ペットモデルの作成  [Not invited]

  斎藤健太郎, 山本雅人

  情報処理北海道シンポジウム講演論文集  2013/10
• 枝刈りによる既存Hexゲーム戦略におけるUCTアルゴリズムの効率化  [Not invited]

  三橋允, 本庄将也, 山本雅人

  情報処理北海道シンポジウム講演論文集  2013/10
• 巡回セールスマン問題に対する粒子群最適化の提案と性能評価  [Not invited]

  本庄将也, 山本雅人, 古川正志

  情報処理北海道シンポジウム講演論文集  2013/10
• HEX評価関数への介護中心性の反映  [Not invited]

  高田圭, 本庄将也, 山本雅人

  情報処理北海道シンポジウム講演論文集  2013/10
• 群移動シミュレーションにおける相互作用の解析支援システム―柔軟構造体群の移動時に発生する絡みの評価指標設計とその特徴解析―  [Not invited]

  小川純, 山本雅人, 古川正志

  情報処理北海道シンポジウム講演論文集  2013/10
• タブレット端末を用いた人工ペットモデルの作成  [Not invited]

  斎藤 健太郎, 山本, 雅人, 古川 正志

  情報処理学会北海道シンポジウム2013講演論文集  2013/10
• HEX評価関数への媒介中心性の反映  [Not invited]

  高田 圭, 本庄, 将也, 山本 雅人

  情報処理北海道シンポジウム2013講演論文集  2013/10
• 被災がれき量推定のための画像領域を利用した建造物の変化検出  [Not invited]

  利根川凛, 山本雅人, 古川正志

  精密工学会大会学術講演会講演論文集  2013/08
• 割り付けルールによるフレキシブルジョブショップ問題の解法  [Not invited]

  横山想一郎, 山本雅人, 古川正志

  精密工学会大会学術講演会講演論文集  2013/08
• ネットワークトポロジー上の自己組織化マップによる商品配置  [Not invited]

  南賢一, 山本雅人, 古川正志

  精密工学会大会学術講演会講演論文集  2013/08
• 選択型ニューラルネットワークアンサンブルによる仮想ロボットの複合的行動獲得  [Not invited]

  大江亮介, 鈴木育男, 古川正志, 山本雅人

  精密工学会大会学術講演会講演論文集  2013/08
• 2部グラフによる電子掲示板のスレッド分類手法  [Not invited]

  田中航介, 鈴木育男, 山本雅人, 古川正志

  情報科学技術フォーラム講演論文集  2013/08
• 時間変化を考慮したネットワーク可視化方法  [Not invited]

  川口光, 山本雅人, 古川正志

  情報科学技術フォーラム講演論文集  2013/08
• A-018 Topic Categorization with Bipartite Graph in Bulletin Board System  [Not invited]

  TANAKA Kousuke, SUZUKI Ikuo, YAMAMOTO Masahito, Furukawa Masashi

  情報科学技術フォーラム講演論文集  2013/08
• 1P1-M06 A study on online learned artificial neural network based on STDP(Evolution and Learning for Robotics (2))  [Not invited]

  IWADATE Kenji, SUZUKI Ikuo, WATANABE Michiko, YAMAMOTO Masahito, FURUKAWA Masashi

  ロボティクス・メカトロニクス講演会講演概要集  2013/05 

  This study aims to propose an artificial neural network based on a network topology of cerebellum and learning rule that call Spike Timing Dependent Plasticity. An experiment showed that proposed artificial neural network has capability of supervised learning on a real-time basis without any optimization.
• 1A2-N04 Evolutionary Acquisition of Coordinative Behavior with Dynamic Change of Roles(Evolution and Learning for Robotics (1))  [Not invited]

  OOE Ryosuke, SUZUKI Ikuo, YAMAMOTO Masahito, FURUKAWA Masashi

  ロボティクス・メカトロニクス講演会講演概要集  2013/05 

  This paper describes a coordinative behavior of virtual robots. Virtual robots move on a two-dimensional plane by the law based on the Newton's equations. Motions of virtual robots are controlled by an artificial neural network (ANN). Parameters of an ANN are optimized by a real-coded genetic algorithm so that virtual robots cooperate on catching targets. Targets escape from virtual robots in the opposite direction of the nearest virtual robot. The experimental result shows that two virtual robots are located in front and the rear of a target like a straight line to catch it. It is also shown that the role of a waiting virtual robot changes dynamically to surround a target when the target breaks through the besieging two virtual robots.
• Collaborative Creation of Hierarchical Tags in NicoNico  [Not invited]

  高橋文彦, 山本雅人, 古川正志

  情報処理学会研究報告(CD-ROM)  2013/04
• A Proposal of Storage Location Assignment Using Co-ocurrence Network of Order Items  [Not invited]

  南賢一, 古川正志, 山本雅人

  情報処理学会研究報告(CD-ROM)  2013/04
• 画像解析による被災がれき量の推定に関する基礎研究  [Not invited]

  山本雅人, 古川正志, 高谷敏彦, 大内東

  情報処理学会全国大会講演論文集  2013/03 

  東日本大震災の津波被害に代表される大規模な家屋の倒壊を含む災害時において,迅速な対応,復旧に向けた取組を総合的に行うためには,被災がれき量をより早くより正確に推定する必要がある.しかしながら,現状では被災がれき量を精度よく見積る手法は確立されておらず,実際の災害復旧現場において,輸送手段や輸送経路の確保に失敗したり,仮置き場の数が足りなかったりといった事態を引き起こし,復旧の妨げになっている.本研究では,航空写真などの画像データから被災地域をある程度特定し,地図データとの照合によりおおまかな被災がれき量を推定する手法について検討する.
• LEMとDSSOMのハイブリッド可視化法におけるパラメータ調整  [Not invited]

  川口光, 山本雅人, 古川正志

  人工知能学会知識ベースシステム研究会資料  2013/03
• A Proposal of Storage Location Assignment Using Co-ocurrence Network of Order Items  [Not invited]

  Minami Kenichi, Furukawa Masashi, Yamamoto Masahito

  IPSJ SIG Notes. ICS  2013/03 

  Order picking has a great affect with efficiently controlling a large-scale logistic center. It is important for order picking not only to give workers a good tour plan but also to assign products to the storage shelves in the center. This study proposes a new method how to assign products to the storage using an ordered product relation network and Self-Organizing Map.
• Collaborative Creation of Hierarchical Tags in NicoNico  [Not invited]

  Takahashi Fumihiko, Yamamoto Masahito, Furukawa Masashi

  IPSJ SIG Notes. ICS  2013/03 

  Video sharing sites are so popular in Web services in all over world. One of such sites, NicoNico, which deals with video files, is successfully served in Japan. This site uses tags to classify contents of videos. It is known that the desired content is efficiently explored when tag's hierarchical information is given. This study proposes a new method to automatically generate hierarchical structure of tags in NicoNico.
• 電子掲示板におけるスレッドの分類指標の検証  [Not invited]

  田中航介, 鈴木育男, 山本雅人, 古川正志

  精密工学会大会学術講演会講演論文集  2013/02
• 高密度状態における海藻個体群の移動シミュレーションとその力学的解析  [Not invited]

  小川純, 鈴木育男, 山本雅人, 古川正志

  精密工学会大会学術講演会講演論文集  2013/02
• 巡回セールスマン問題に対する粒子群最適化法の拡張  [Not invited]

  本庄将也, 山本雅人, 古川正志

  精密工学会大会学術講演会講演論文集  2013/02
• 割り付けルールによる局所探索を用いたジョブショップスケジューリング問題の近似解法  [Not invited]

  横山想一郎, 鈴木育男, 山本雅人, 古川正志

  精密工学会大会学術講演会講演論文集  2013/02
• JSPにおける局所クラスタリング組織化法を用いたリアクティブスケジューリング  [Not invited]

  田村康将, 鈴木育男, 山本雅人, 古川正志

  精密工学会大会学術講演会講演論文集  2013/02
• 時間遅れを考慮した情報伝播におけるトポロジーの影響について  [Not invited]

  小松琢也, 鈴木育男, 山本雅人, 古川正志

  精密工学会大会学術講演会講演論文集  2013/02
• 進化的人工ニューラルネットワークによる仮想ロボットの協調行動の獲得  [Not invited]

  大江亮介, 鈴木育男, 山本雅人, 古川正志

  精密工学会大会学術講演会講演論文集  2013/02
• 伝播遅れを考慮した情報伝播モデルにおける複数情報の伝播  [Not invited]

  小松 琢也, 山本, 雅人, 古川 正志

  人工知能学会データ指向構成マイニングとシミュレーション研究会報告  2013
• 上気道MRIにおける舌領域の形態と睡眠時無呼吸症の重症度との相関性  [Not invited]

  三上 剛, 米澤, 一也, 小島, 洋一郎, 山本, 雅人, 古川 正志

  第12回複雑系マイクロシンポジウム講演論文集  2013
• 撹拌シミュレーションに基づく海藻群の移動解析  [Not invited]

  小川 純, 鈴木, 育男, 山本, 雅人, 古川 正志

  ロボティクス・メカトロニクス講演会2013 in Tsukuba 講演論文集  2013
• スワームモデルの複雑ネットワークに基づく行動解析  [Not invited]

  家登 亮多, 山本, 雅人, 古川 正志

  ロボティクス・メカトロニクス講演会2013 in Tsukuba 講演論文集  2013
• 役割の動的変化を伴う協調行動の進化的獲得  [Not invited]

  大江 亮介, 鈴木, 育男, 山本, 雅人, 古川 正志

  ロボティクス・メカトロニクス講演会2013 in Tsukuba 講演論文集  2013
• STDP 則に基づくオンライン学習型ニューラルネットモデルの提案  [Not invited]

  岩館 健司, 鈴木, 育男, 渡辺, 美知子, 山本, 雅人, 古川 正志

  ロボティクス・メカトロニクス講演会2013 in Tsukuba 講演論文集  2013
• 複数情報の伝播に対する時間遅れの影響  [Not invited]

  小松琢也, 山本雅人, 古川正志

  ネットワーク生態学シンポジウム予稿集(CD-ROM)  2013
• 類似したネットワークデータの連続的可視化方法  [Not invited]

  川口光, 山本雅人, 古川正志

  ネットワーク生態学シンポジウム予稿集(CD-ROM)  2013
• ジョブ割り付けルールの解析によるJSPベンチマーク問題の分類  [Not invited]

  田村康将, 鈴木育男, 山本雅人, 古川正志

  日本機械学会北海道支部講演会講演概要集  2012/10
• クリティカルパスを考慮したジョブショップスケジューリング問題の近似解法  [Not invited]

  横山想一郎, 鈴木育男, 山本雅人, 古川正志

  日本機械学会北海道支部講演会講演概要集  2012/10
• 共起ネットワークを用いた商品の注文データの解析  [Not invited]

  南賢一, 山本雅人, 古川正志

  情報処理北海道シンポジウム講演論文集  2012/10
• オーダーピッキングにおける局所性鋭敏型ハッシュを用いた伝票割当問題の解法  [Not invited]

  高橋麻希子, 小野寺大地, 鈴木育男, 山本雅人, 渡辺美知子, 古川正志

  情報処理北海道シンポジウム講演論文集  2012/10
• ネットワークの大域的可視化におけるLEMとDSSOMの組み合わせ  [Not invited]

  川口光, 鈴木育男, 山本雅人, 古川正志

  情報処理北海道シンポジウム講演論文集  2012/10
• 群行動シミュレーションにおける振る舞いの観測  [Not invited]

  家登亮多, 鈴木育男, 山本雅人, 古川正志

  情報処理北海道シンポジウム講演論文集  2012/10
• 人の生活時間による伝播遅れを考慮した情報伝播モデルの提案  [Not invited]

  小松琢也, 古川正志, 山本雅人, 鈴木育男

  情報処理北海道シンポジウム講演論文集  2012/10
• ニコニコ動画におけるタグ共起ネットワークを用いたコンテンツ抽出  [Not invited]

  高橋文彦, 鈴木育男, 山本雅人, 古川正志

  情報処理北海道シンポジウム講演論文集  2012/10
• 異なる環境下における人工生物の最適行動の獲得  [Not invited]

  松林涼平, 山本雅人, 古川正志

  情報処理北海道シンポジウム講演論文集  2012/10
• A-035 Effectiveness of Neighborhood Radius in Local Energy Minimization  [Not invited]

  TSUJIMOTO Yohei, SUZUKI Ikuo, YAMAMOTO Masahito, FURUKAWA Masashi

  情報科学技術フォーラム講演論文集  2012/09
• A-011 Information Extraction in Bulletin Board System using Co-occurrence Network  [Not invited]

  TANAKA Kousuke, SUZUKI Ikuo, YAMAMOTO Masahito, Furukawa Masashi

  情報科学技術フォーラム講演論文集  2012/09
• A-010 Similarity Between Networks Considering Node Feature Quantities  [Not invited]

  Takimi Yuta, Suzuki Ikuo, Yamamoto Masahito, Furukawa Masashi

  情報科学技術フォーラム講演論文集  2012/09
• 割り付けルールを用いたジョブショップスケジューリング問題の近似解法  [Not invited]

  横山想一郎, 鈴木育男, 山本雅人, 古川正志

  精密工学会大会学術講演会講演論文集  2012/09
• ジョブショップスケジューリング問題に対する人工ニューラルネットワークを用いたジョブ割り付けルールの獲得  [Not invited]

  田村康将, 鈴木育男, 山本雅人, 古川正志

  精密工学会大会学術講演会講演論文集  2012/09
• ニューロエボリューションによる仮想ロボットの行動制御  [Not invited]

  大江亮介, 鈴木育男, 山本雅人, 古川正志

  精密工学会大会学術講演会講演論文集  2012/09
• バッタモデルの目標高さに応じた跳躍動作の獲得  [Not invited]

  梅村裕太, 鈴木育男, 山本雅人, 古川正志

  精密工学会大会学術講演会講演論文集  2012/09
• 物流センターにおける商品配置を考慮したピッキング作業の最適化  [Not invited]

  岩崎幸安, 鈴木育男, 山本雅人, 古川正志

  精密工学会大会学術講演会講演論文集  2012/09
• ジョブショップスケジューリング問題に対するNeuro Evolutionの適用  [Not invited]

  田村康将, 鈴木育男, 山本雅人, 古川正志

  インテリジェント・システム・シンポジウム(CD-ROM)  2012/08
• ディスパッチングルールを用いたLCOによるJSPの近似解法  [Not invited]

  横山想一郎, 鈴木育男, 山本雅人, 古川正志

  インテリジェント・システム・シンポジウム(CD-ROM)  2012/08
• 局所エネルギー最小化法における近傍半径パラメータの効果  [Not invited]

  辻本陽平, 鈴木育男, 山本雅人, 古川正志

  情報科学技術フォーラム講演論文集  2012/08
• ノードの特徴量を考慮したネットワーク間類似度  [Not invited]

  滝見優太, 鈴木育男, 山本雅人, 古川正志

  情報科学技術フォーラム講演論文集  2012/08
• 共起ネットワークを用いた電子掲示板からの情報抽出  [Not invited]

  田中航介, 鈴木育男, 山本雅人, 古川正志

  情報科学技術フォーラム講演論文集  2012/08
• 行動獲得における目的タスクの多様性と汎化能力  [Not invited]

  大江亮介, 鈴木育男, 山本雅人, 古川正志

  日本機械学会ロボティクス・メカトロニクス講演会講演論文集(CD-ROM)  2012/05
• 人工海藻モデルによる海藻培養環境に関する研究  [Not invited]

  小川純, 鈴木育男, 山本雅人, 古川正志

  日本機械学会ロボティクス・メカトロニクス講演会講演論文集(CD-ROM)  2012/05
• 多目的最適化を用いた適応行動の多様性とその応用について  [Not invited]

  米陀佳祐, 鈴木育男, 山本雅人, 古川正志

  日本機械学会ロボティクス・メカトロニクス講演会講演論文集(CD-ROM)  2012/05
• 動的なインタラクションを考慮した人工生物の行動創発  [Not invited]

  岩館健司, 鈴木育男, 山本雅人, 古川正志

  日本機械学会ロボティクス・メカトロニクス講演会講演論文集(CD-ROM)  2012/05
• 仮想流体環境におけるエネルギー効率を考慮した人工生物の行動獲得  [Not invited]

  中村啓太, 鈴木育男, 山本雅人, 古川正志

  日本機械学会ロボティクス・メカトロニクス講演会講演論文集(CD-ROM)  2012/05
• 仮想物理環境におけるバッタモデルの歩行・跳躍動作  [Not invited]

  梅村裕太, 鈴木育男, 山本雅人, 古川正志

  日本機械学会ロボティクス・メカトロニクス講演会講演論文集(CD-ROM)  2012/05
• 1A2-E10 Emergence of Dynamic Interactive Behavior of Virtual Creatures(Evolution and Learning for Robotics(2))  [Not invited]

  IWADATE Kenji, SUZUKI Ikuo, YAMAMOTO Masahito, Furukawa Masashi

  ロボティクス・メカトロニクス講演会講演概要集  2012/05 

  This study aims to actualize the interactive behavior of virtual creatures with neural controller. For generating a control signal with a rhythmic pattern, a controller for the virtual creature is modeled by a combination of a Central Pattern Generator (CPG) and an Artificial Neural Network (ANN). The evolution of the behavior of the virtual creature is realized by a learning ANN and CPG An optimization algorithm is adopted into the learning process.
• 1A2-E06 Diversity of Behavior using Multi-Objective Optimization for Complicated Behaviors(Evolution and Learning for Robotics(2))  [Not invited]

  YONEDA Keisuke, SUZUKI Ikuo, YAMAMOTO Masahito, FURUKAWA Masashi

  ロボティクス・メカトロニクス講演会講演概要集  2012/05 

  Designing complicated behavior for an autonomous robot is a significant challenge in the field of adaptive behavior researches. We have proposed the behavior design method for virtual autonomous robots. It aims to obtain complicated behaviors by combining several artificial neural networks as primitive controllers. We have shown that the proposed method is capable of designing behaviors to achieve complicated tasks. This paper aims to introduce the multi-objective optimization into the proposed method to sustain diversity of primitive controllers. We conduct a simulation experiment for khepera-like mobile robot to acquire locomotion. Simulation experiments are carried out to show the effectiveness of our method.
• 1A2-C06 Diversity of desired tasks and generalization ability on behavior acquisition(Evolution and Learning for Robotics(2))  [Not invited]

  OOE Ryosuke, SUZUKI Ikuo, YAMAMOTO Masahito, FURUKAWA Masashi

  ロボティクス・メカトロニクス講演会講演概要集  2012/05 

  This paper describes numerical simulations of a moving virtual robot. The virtual robot moves on a two-dimensional plane by the law based on the Newton's equations. The motion of the virtual robot is controlled by an artificial neural network (ANN). In order to control the virtual robot moving for a given target place, parameters of ANNs are optimized by particle swarm optimization (PSO). This type of control and learning method is called evolutionary ANN (EANN). It is shown by many numerical simulations that difficulties of learning rely on a position at which the target is placed. The phenomena is also found that a generalization ability of an ANN, that is, the ability to go toward not learned targets, decreases as learning of EANN progresses. Additional simulations show that learning simultaneously for two of more target places brings the high generalization ability.
• Physical Simulation Environment for Motion Computation in Fluid : Deciding a Shape of da Vinci's Spiral Wing by Particle Swarm Optimization  [Not invited]

  大江 亮介, 鈴木 育男, 山本 雅人

  精密工学会誌  2012/04
• 局所エネルギー最小化法における近傍半径パラメータの効果に関する検証  [Not invited]

  辻本陽平, 鈴木育男, 山本雅人, 古川正志

  情報処理学会全国大会講演論文集  2012/03
• 動的近傍競合学習を用いたコミュニティ分割手法  [Not invited]

  小野寺大地, 鈴木育男, 山本雅人, 古川正志

  情報処理学会全国大会講演論文集  2012/03
• 動的近傍競合学習によるコミュニティ分割手法  [Not invited]

  小野寺大地, 鈴木育男, 山本雅人, 古川正志

  全国大会講演論文集  2012/03 

  我々の社会は無数の人間が相互に関係を持ちながら成り立っている.これらは,単体で見れば個性など様々な特性が存在するが,関係という一点を見ることで一つの大きなネットワークとみなすことができる.このネットワーク内での関係をリンクと呼び,コミュニティとはノードの特性に関係なくリンクが密に結合したネットワークの部分集合を指す.コミュニティ分割は,ネットワーク上のコミュニティを取り出し,それらの特性を解析することを目的としている.これらを解決するアルゴリズムとしてCNM法など既存手法が挙げられるが,ノード数が多いネットワークやリンク密度が高いネットワークには適用が難しい.本研究では,学習近傍が動的に変化する競合学習を用いることで,この問題を解決する手法を提案する.
• 仮想水中環境下における人工海藻の挙動の解析  [Not invited]

  小川純, 鈴木育男, 山本雅人, 古川正志

  精密工学会大会学術講演会講演論文集  2012/03
• 仮想物理環境におけるバッタモデルの地上動作に関する研究  [Not invited]

  梅村裕太, 鈴木育男, 山本雅人, 古川正志

  精密工学会大会学術講演会講演論文集  2012/03
• 大規模物流センターの混雑を考慮したピッキング作業の最適化  [Not invited]

  岩崎幸安, 鈴木育男, 山本雅人, 古川正志

  精密工学会大会学術講演会講演論文集  2012/03
• エネルギーを考慮した人工生物の形状と移動能力の関係  [Not invited]

  中村啓太, 鈴木育男, 山本雅人, 古川正志

  精密工学会大会学術講演会講演論文集  2012/03
• 複合的人工ニューラルネットワークを用いた仮想飛翔ロボツトの3次元追従行動  [Not invited]

  大江亮介, 鈴木育男, 山本雅人, 古川正志

  精密工学会大会学術講演会講演論文集  2012/03
• コミュニティ分割問題における動的近傍競合学習を用いた解法  [Not invited]

  小野寺大地, 鈴木育男, 山本雅人, 古川正志

  ネットワーク生態学シンポジウム予稿集(CD-ROM)  2012
• 食物網における流れの入出の区別に基づく部分種集合の分類  [Not invited]

  原田恵雨, 鈴木育男, 山本雅人, 古川正志

  ネットワーク生態学シンポジウム予稿集(CD-ROM)  2012
• 類似ノードの特徴量を考慮したネットワーク間距離の提案  [Not invited]

  滝見優太, 鈴木育男, 山本雅人, 古川正志

  ネットワーク生態学シンポジウム予稿集(CD-ROM)  2012
• リンク重みの増加・減衰を考慮した重み付きネットワークのネットワークモデルの提案  [Not invited]

  滝見優太, 鈴木育男, 山本雅人, 古川正志

  情報処理北海道シンポジウム講演論文集  2011/10
• 仮想水中環境における海藻モデルの絡み現象の開発  [Not invited]

  小川純, 鈴木育男, 山本雅人, 古川正志

  情報処理北海道シンポジウム講演論文集  2011/10
• ジョブの先行関係が半順序であるJSPの解法―全順序への変換とその効果―  [Not invited]

  田村康将, 鈴木育男, 山本雅人, 古川正志

  情報処理北海道シンポジウム講演論文集  2011/10
• 学習近傍を動的に制限するSOMを用いたコミュニティ分割手法  [Not invited]

  小野寺大地, 鈴木育男, 山本雅人, 古川正志

  情報処理北海道シンポジウム講演論文集  2011/10
• 物流センターのピッキング作業へのJSPの適用―伝票割当を用いたスケジュール―  [Not invited]

  岩崎幸安, 鈴木育男, 山本雅人, 古川正志

  情報処理北海道シンポジウム講演論文集  2011/10
• シェルピンスキーのギャスケットを用いた階層型データの可視化  [Not invited]

  田中航介, 鈴木育男, 山本雅人, 古川正志

  情報処理北海道シンポジウム講演論文集  2011/10
• 局所エネルギー最小化法におけるエッジクロス解消のための局所調整  [Not invited]

  辻本陽平, 鈴木育男, 山本雅人, 古川正志

  情報処理北海道シンポジウム講演論文集  2011/10
• 非対称コストのTSPに対するLCOの適用  [Not invited]

  横山想一郎, 鈴木育男, 山本雅人, 古川正志

  情報処理北海道シンポジウム講演論文集  2011/10
• 感染モデルを用いた情報伝播モデルの作成の実験―SIRモデルとパーコレーションモデルの比較―  [Not invited]

  小松琢也, 鈴木育男, 山本雅人, 古川正志

  情報処理北海道シンポジウム講演論文集  2011/10
• 大規模物流センターにおける集配計画の研究  [Not invited]

  岩崎幸安, 古川正志, 山本雅人, 鈴木育男

  日本機械学会年次大会講演論文集(CD-ROM)  2011/09
• K-023 Operation Log Analysis forWeb Interface Design using Weighted Directed Graph  [Not invited]

  TSUJIMOTO Yohei, SUZUKI Ikuo, YAMAMOTO Masahito, FURUKAWA Masashi

  情報科学技術フォーラム講演論文集  2011/09
• K-024 Community Correspondence in Bipartite Graph Constructed on the Web  [Not invited]

  HARADA Keiu, SUZUKI Ikuo, YAMAMOTO Masahito, FURUKAWA Masashi

  情報科学技術フォーラム講演論文集  2011/09
• K-025 The Operation Log Analysis for Web Interface Design using Dividing User Community  [Not invited]

  TAKIMI Yuta, SUZUKI Ikuo, YAMAMOTO Masahito, FURUKAWA Masashi

  情報科学技術フォーラム講演論文集  2011/09
• 仮想物理環境におけるバッタモデルの姿勢制御を考慮した跳躍動作の獲得  [Not invited]

  梅村裕太, 鈴木育男, 山本雅人, 古川正志

  精密工学会大会学術講演会講演論文集  2011/09
• 多様性のある人工生物の形態創発を目的とした進化の性質の解析  [Not invited]

  萬谷和之, 鈴木育男, 山本雅人, 古川正志

  精密工学会大会学術講演会講演論文集  2011/09
• ユーザのコミュニティ分割を用いたWebインタフェース設計のための操作ログ解析  [Not invited]

  滝見優太, 鈴木育男, 山本雅人, 古川正志

  情報科学技術フォーラム講演論文集  2011/08
• 重み付有向グラフを用いたWebインタフェース設計のための操作ログ解析  [Not invited]

  辻本陽平, 鈴木育男, 山本雅人, 古川正志

  情報科学技術フォーラム講演論文集  2011/08
• ウェブ上で構成される二部グラフのコミュニティ対応関係  [Not invited]

  原田恵雨, 鈴木育男, 山本雅人, 古川正志

  情報科学技術フォーラム講演論文集  2011/08
• 1A1-O01 Behavior Acquisition of Multiple Degrees of Freedom Robot for Complicated Task(Evolution and Learning for Robotics)  [Not invited]

  YONEDA Keisuke, SUZUKI Ikuo, YAMAMOTO Masahito, FURUKAWA Masashi

  ロボティクス・メカトロニクス講演会講演概要集  2011/05 

  An elastic robot is proposed which has a body with multiple degrees of freedom. This study focuses to allow the elastic robot to behave autonomously. A physical simulation is implemented to achieve given tasks for the virtual elastic robot. We assume a complicated task to acquire locomotion in which an obstacle is placed. We conduct a parameter optimization of control system by Evolutionary Computation. Moreover, in order to design an intelligent behavior, this paper proposes "Behavior Composed" which consists of several simple behaviors. Experimental results show that the robot is capable of acquiring locomotion in specific circumstances.
• 1A1-P02 A Study on Generality of ANN for Butterfly's Flight Control(Evolution and Learning for Robotics)  [Not invited]

  OOE Ryosuke, SUZUKI Ikuo, YAMAMOTO Masahito, FURUKAWA Masashi

  ロボティクス・メカトロニクス講演会講演概要集  2011/05 

  We propose a simple physics model of a butterfly and its flight control by the real-coded genetic algorithm (RCGA) and the artificial neural network (ANN). A physics model consists of two kinetic equations which are led by simplification of the fluid force. A butterfly's flight is controlled by an ANN. The RCGA optimizes weights of the ANN for obtaining the suitable flight. After evolution, the generality of the optimized ANN is investigated by changing an initial height at which a butterfly starts in flight. Then it is shown that the flying creature enough evolved can not keep at the aimed height when the initial height is set far from the initial height used in evolution. Investigation by changing generality of the ANN in evolution shows that too much optimization may reduce the generality of the ANN.
• 結合振動子を用いたネットワーク成長モデルの提案とその評価  [Not invited]

  小笠原寛弥, 鈴木育男, 山本雅人, 古川正志

  精密工学会大会学術講演会講演論文集  2011/03
• 局所クラスタリング組織化法を応用した大規模TSPの分割統治解法  [Not invited]

  石川和典, 鈴木育男, 山本雅人, 古川正志

  精密工学会大会学術講演会講演論文集  2011/03
• 仮想水中環境における人工生物の遊泳行動獲得―仮想筋肉による運動制御―  [Not invited]

  福本晃宏, 鈴木育男, 山本雅人, 古川正志

  精密工学会大会学術講演会講演論文集  2011/03
• 遺伝子型と表現型の関連性に着目した形態創発に関する研究  [Not invited]

  萬谷和之, 鈴木育男, 山本雅人, 古川正志

  精密工学会大会学術講演会講演論文集  2011/03
• 局面ネットワークの中心性を利用したHexゲーム戦略の提案  [Not invited]

  第23回自律分散システム・シンポジウム講演論文集  2011
• 枝交換交叉を用いた粒子群最適化法によるTSPの解法  [Not invited]

  第23回自律分散システム・シンポジウム講演論文集  2011
• 自律分散型 Behavior Composed による弾性ロボットの行動制御  [Not invited]

  第23回自律分散システム・シンポジウム講演論文集  2011
• ジョブの先行関係が半順序であるJSPの解法  [Not invited]

  情報処理北海道シンポジウム2011講演論文集  2011
• ユーザのクラスタリングを用いたWebインタフェース設計のための操作ログ解析  [Not invited]

  第10回複雑系マイクロシンポジウム公演論文集  2011
• 物流センターの集配計画へのジョブショップスケジューリング問題の適用  [Not invited]

  第10回複雑系マイクロシンポジウム講演論文集  2011
• 状態遷移図を用いたWebインタフェース設計のための操作ログ解析  [Not invited]

  第10回複雑系マイクロシンポジウム公演論文集  2011
• 仮想物理環境におけるバッタモデルの連続跳躍行動の獲得  [Not invited]

  第10回複雑系マイクロシンポジウム講演論文集  2011
• 仮想筋肉による人工生物の遊泳行動獲得  [Not invited]

  第3回日本ロボット学会北海道ロボット技術研究専門委員会学術講演会論文集  2011
• 結合振動子を用いたネットワーク成長のモデル化とその有効性の検証  [Not invited]

  小笠原寛弥, 鈴木育男, 山本雅人, 古川正志

  計測自動制御学会北海道支部学術講演会論文集  2011
• 複合型タスクに対する多自由度ロボットの自律移動行動の形成  [Not invited]

  ロボティクス・メカトロニクス講演会2011講演論文集  2011
• 様々な形態的特徴を持つ人工生物に対する自律行動アニメーション生成  [Not invited]

  ロボティクス・メカトロニクス講演会'11(Robomec'11)  2011
• 蝶の飛行制御におけるANNの汎化能力に関する研究  [Not invited]

  ロボティクス・メカトロニクス講演会2011講演論文集  2011
• 多様性のある人工生物の形態創発に関する研究  [Not invited]

  ロボティクス・メカトロニクス講演会2011講演論文集  2011
• 仮想物理環境におけるバッタモデルの跳躍行動の獲得  [Not invited]

  ロボティクス・メカトロニクス講演会2011講演論文集  2011
• 仮想流体環境が人工生物の行動知能創発に及ぼす影響  [Not invited]

  ロボティクス・メカトロニクス講演会2011講演論文集  2011
• 弾性バネによって運動する人工生物の遊泳行動獲得  [Not invited]

  ロボティクス・メカトロニクス講演会2011講演論文集  2011
• 局所クラスタリング組織化法を応用した分割統治法による大規模TSPの解法  [Not invited]

  2011年度精密工学会北海道支部学術講演会講演論文集  2011
• 仮想物理環境における跳躍モデルの姿勢制御を考慮した連続跳躍動作の獲得  [Not invited]

  2011年度精密工学会北海道支部学術講演会講演論文集  2011
• 巡回セールスマン問題に対する粒子群最適化法の一解法  [Not invited]

  2011年度精密工学会北海道支部学術講演会講演論文集  2011
• 有向グラフの二部グラフ化による二部コミュニティ対応関係の解析  [Not invited]

  第52回数理社会学会大会第7回ネットワークが創発する知能研究会講演論文集  2011
• 仮想筋肉による人工生物の遊泳行動の解析  [Not invited]

  2011年度精密工学会北海道支部学術講演会講演論文集  2011
• Twitterにおける東日本大震災時の情報伝搬に関する研究  [Not invited]

  2011年度精密工学会北海道支部学術講演会講演論文集  2011
• 物流センターのピッキング作業へのJSPの適用  [Not invited]

  情報処理北海道シンポジウム2011講演論文集  2011
• 感染モデルを用いた情報伝播モデルの作成の実験  [Not invited]

  情報処理北海道シンポジウム2011講演論文集  2011
• 学習近傍を動的に制限したSOMを用いたコミュニティ分割手法  [Not invited]

  情報処理北海道シンポジウム2011講演論文集  2011
• 複合的人工ニューラルネットワークによる仮想飛翔ロボットの飛翔制御  [Not invited]

  第12回計測自動制御学会システムインテグレーション部門講演会論文集  2011
• 水中環境における仮想筋肉を用いた人工生物の遊泳獲得  [Not invited]

  第12回計測自動制御学会システムインテグレーション部門講演会論文集  2011
• 東日本大震災時のTwitterデータに基づく情報伝搬ネットワークの解析  [Not invited]

  第12回計測自動制御学会システムインテグレーション部門講演会論文集  2011
• 仮想流体環境における人工生物の形状と移動能力の関係  [Not invited]

  第12回計測自動制御学会システムインテグレーション部門講演会論文集  2011
• 多目的最適化を用いた仮想自律ロボットの複合型行動の実現  [Not invited]

  第12回計測自動制御学会システムインテグレーション部門講演会論文集  2011
• 局所部分経路を組合せた分割統治法による大規模TSPの解法  [Not invited]

  第12回計測自動制御学会システムインテグレーション部門講演会論文集  2011
• 巡回セールスマン問題に対する群知能的解法  [Not invited]

  第12回計測自動制御学会システムインテグレーション部門講演会論文集  2011
• The synergistic network growth model in consideration of node characteristic and community information  [Not invited]

  三好栄次, 鈴木育男, 山本雅人, 古川正志

  情報処理学会研究報告(CD-ROM)  2010/10
• 行為者の属性・関係構造による行為の動的変化を考慮したネットワーク成長モデル  [Not invited]

  小笠原 寛弥, 鈴木 育男, 山本 雅人, 古川 正志

  情報処理北海道シンポジウム講演論文集  2010/10
• 弾性バネをアクチュエータとする人工生物の遊泳行動獲得  [Not invited]

  福本 晃宏, 鈴木 育男, 山本 雅人, 古川 正志

  情報処理北海道シンポジウム講演論文集  2010/10
• TSPにおけるPSOとLCOのハイブリッド  [Not invited]

  市瀬 光生, 鈴木 育男, 山本 雅人, 古川 正志

  情報処理北海道シンポジウム講演論文集  2010/10
• 局所組み合わせ分割統治法による大規模TSPの解法  [Not invited]

  石川 和典, 鈴木 育男, 山本 雅人, 古川 正志

  情報処理北海道シンポジウム講演論文集  2010/10
• CGのための蝶モデルの提案 : 物理法則に基づくモデル化と自律的制御  [Not invited]

  大江 亮介, 鈴木 育男, 山本 雅人, 古川 正志

  情報処理北海道シンポジウム講演論文集  2010/10
• 局面ネットワークを利用したHexゲーム戦略の提案  [Not invited]

  本庄 将也, 鈴木 育男, 山本 雅人, 古川 正志

  情報処理北海道シンポジウム講演論文集  2010/10
• 人工生物のための形態創発可能な遺伝子表現型に関する研究  [Not invited]

  萬谷 和之, 鈴木 育男, 山本 雅人, 古川 正志

  情報処理北海道シンポジウム講演論文集  2010/10
• The synergistic network growth model in consideration of node characteristic and community information  [Not invited]

  Eiji Miyoshi, Ikuo Suzuki, Masahito Yamamoto, Masashi Furukawa

  IPSJ SIG Notes  2010/09 

  A lot of researches on network-growing models have not considered a characteristic of nodes. They have only paid attention to a topology structure. However, quite a few of existing networks are influenced by the characteristic of the nodes, which are the component of the network. It is thought that the characteristic of the nodes influences community structure appearance of the network and that the community structure influences a growing of network as well. In this study, existing networks are analyzed by the local community extraction. Then, a new network-growing model using the rule including the community information is proposed, while a new node is in turn added into the network and the network is growing. The growing process of the resultant network is examined by the conventional network feature value such as the average shortest path, the clustering coefficient,etc. and is compared with ones of the real network.
• A new method for storage location assignment optimization in the distribution center  [Not invited]

  坂本延寛, 鈴木育男, 山本雅人, 古川正志

  精密工学会大会学術講演会講演論文集  2010/09
• Acquisition of swimming on artificial creature by using elastic springs  [Not invited]

  福本晃宏, 鈴木育男, 山本雅人, 古川正志

  精密工学会大会学術講演会講演論文集  2010/09
• Robust behavior acquisition for multi-jointed arm by physically based simulations  [Not invited]

  蜂谷俊泰, 鈴木育男, 山本雅人, 古川正志

  精密工学会大会学術講演会講演論文集  2010/09
• A study on genotype representation which is capable of the emergence of the morphology for artificial creature  [Not invited]

  萬谷和之, 鈴木育男, 山本雅人, 古川正志

  精密工学会大会学術講演会講演論文集  2010/09
• 物理法則に基づく蝶モデルの飛行  [Not invited]

  大江亮介, 鈴木育男, 山本雅人, 古川正志

  精密工学会大会学術講演会講演論文集  2010/09
• Application of local clustering organization for constraint satisfaction problem  [Not invited]

  猿島悠輔, 鈴木育男, 山本雅人, 古川正志

  精密工学会大会学術講演会講演論文集  2010/09
• A study on interrupt scheduling of a logistic center : A scheduling of in-plant logistics considered computation time of re-schedule  [Not invited]

  高橋麻希子, 渡辺美知子, 鈴木育男, 山本雅人, 古川正志

  精密工学会大会学術講演会講演論文集  2010/09
• 物理シミュレーションによる多関節アームロボットのタスク獲得  [Not invited]

  蜂谷 俊泰, 鈴木 育男, 山本 雅人, 古川 正志

  2010年度精密工学会北海道支部学術講演会講演論文集  2010/09
• Webタグの情報粒度を考慮したwebネットワーク構造の階層クラスタリング  [Not invited]

  竹内 尚, 鈴木 育男, 山本 雅人, 古川 正志

  2010年度精密工学会北海道支部学術講演会講演論文集  2010/09
• 複雑ネットワークの特徴量に基づくHexゲーム戦略の解析  [Not invited]

  本庄将也, 鈴木育男, 山本雅人, 古川正志

  情報科学技術フォーラム講演論文集  2010/08
• F-031 An analysis of Hex strategy based on complex network characteristics  [Not invited]

  Honjo Masaya, Suzuki Ikuo, Yamamoto Masahito, Furukawa Masashi

  情報科学技術フォーラム講演論文集  2010/08
• Characteristics of the emergent network structure iｓ optimized by a synchronous network structure  [Not invited]

  岩根 慎司, 鈴木 育男, 山本 雅人, 古川 正志

  ネットワークが創発する知能研究会（JWEIN10）講演論文集  2010/08 

  蔵本モデルをネットワークに拡張した結合振動子ネットワークに関する解析的な議論が多くなされている．本論文では，結合振動子ネットワークにおいて同期の強さを測る示標であるコヒーレンスを最大化するネットワーク構造を得る最適化実験を行い，その結果，創発されたネットワークの構造的特徴と固有振動数分布に関して解析を行うことで,強い同期を実現するネットワークが有する一般的な特徴を明らかにする．
• An evolving network model with attribute and relation structure of the performer and analysis of dynamics  [Not invited]

  小笠原 寛弥, 鈴木 育男, 山本 雅人, 古川 正志

  ネットワークが創発する知能研究会（JWEIN10）講演論文集  2010/08 

  「行為を決定するのは，行為者の属性と自身を取り囲む関係構造である．」これは複雑ネットワーク科学の研究がなされる以前から社会学等でも扱われてきた，ネットワーク科学における基本的な考え方である．本研究では，こうした関係構造を結合振動子を用いてモデル化し，その性質や構造，成長におけるダイナミクスを明らかにする．更に，ノード間の相互作用とネットワークの成長の関係性について明らかにする．
• An analysis of Hex strategy by using a network representation of the position  [Not invited]

  本庄 将也, 鈴木 育男, 山本 雅人, 古川 正志

  ネットワークが創発する知能研究会（JWEIN10）講演論文集  2010/08 

  Hexは簡単なルールの2人用ボードゲームであり，チェスや囲碁のように戦略的な奥深さがあるゲームとして知られ，コンピュータAIの研究もされている．Hexの任意の盤面の状態は自分と相手のネットワークとして表現でき，勝利条件は辺ノードを直接接続することへ変化する．本研究では，熟練者の手筋に現れるネットワークの特徴を，ノード間の媒介性の指標であるk-寄与度を提案し，それを用いた解析により得られた特徴を反映させた，最短経路以外の経路も考慮する，Hexの局面の新たな評価手法を提案する．
• TSPにおけるLCOのハイブリッドに関する研究  [Not invited]

  市瀬光生, 鈴木育男, 山本雅人, 古川正志

  日本機械学会ロボティクス・メカトロニクス講演会講演論文集(CD-ROM)  2010/06
• 結合振動子を用いたネットワーク成長モデルとそのダイナミクス  [Not invited]

  小笠原寛弥, 鈴木育男, 山本雅人, 古川正志

  日本機械学会ロボティクス・メカトロニクス講演会講演論文集(CD-ROM)  2010/06
• 大規模物流センターの割り込み再スケジュール  [Not invited]

  高橋麻希子, 渡辺美知子, 鈴木育男, 山本雅人, 古川正志

  日本機械学会ロボティクス・メカトロニクス講演会講演論文集(CD-ROM)  2010/06
• 物流センターにおける集配ナビゲーション手法の提案  [Not invited]

  坂本延寛, 鈴木育男, 山本雅人, 古川正志

  日本機械学会ロボティクス・メカトロニクス講演会講演論文集(CD-ROM)  2010/06
• 分割統治型LCOによる大規模TSPの解法  [Not invited]

  石川和典, 鈴木育男, 山本雅人, 古川正志

  日本機械学会ロボティクス・メカトロニクス講演会講演論文集(CD-ROM)  2010/06
• 物理モデリングによる多脚型天井移動ロボットの制御獲得  [Not invited]

  白石直樹, 鈴木育男, 山本雅人, 古川正志

  日本機械学会ロボティクス・メカトロニクス講演会講演論文集(CD-ROM)  2010/06
• 評価値基準によるLCOを用いた二次割当問題への適用  [Not invited]

  古川正志, 山本雅人, 鈴木育夫, 猿島悠輔

  日本機械学会ロボティクス・メカトロニクス講演会講演論文集(CD-ROM)  2010/06
• 仮想水中環境下における人工生物の形状と遊泳能力の関係  [Not invited]

  中村啓太, 鈴木育男, 山本雅人, 古川正志

  日本機械学会ロボティクス・メカトロニクス講演会講演論文集(CD-ROM)  2010/06
• 振動子ネットワークの構造変化における振動子の挙動の解析  [Not invited]

  岩根慎司, 鈴木育夫, 山本雅人, 古川正志

  日本機械学会ロボティクス・メカトロニクス講演会講演論文集(CD-ROM)  2010/06
• 仮想環境内における飛行生物の羽ばたき飛行実験  [Not invited]

  大江亮介, 鈴木育男, 山本雅人, 古川正志

  日本機械学会ロボティクス・メカトロニクス講演会講演論文集(CD-ROM)  2010/06
• いびき音はカオスか?  [Not invited]

  三上剛, 小島洋一郎, 山本雅人, 古川正志

  日本機械学会ロボティクス・メカトロニクス講演会講演論文集(CD-ROM)  2010/06
• 物理シミュレーションによる多関節ロボットアームの手の平タスク獲得  [Not invited]

  蜂谷俊泰, 鈴木育男, 山本雅人, 古川正志

  日本機械学会ロボティクス・メカトロニクス講演会講演論文集(CD-ROM)  2010/06
• Central Pattern Generatorによる人工生物の行動獲得  [Not invited]

  岩館健司, 鈴木育男, 山本雅人, 古川正志

  日本機械学会ロボティクス・メカトロニクス講演会講演論文集(CD-ROM)  2010/06
• 円環構造型弾性ロボットの進化計算によるロコモーション形成について  [Not invited]

  米陀佳祐, 鈴木育男, 山本雅人, 古川正志

  日本機械学会ロボティクス・メカトロニクス講演会講演論文集(CD-ROM)  2010/06
• 弾性体を用いた人工生物の遊泳行動獲得  [Not invited]

  福本晃宏, 鈴木育男, 山本雅人, 古川正志

  日本機械学会ロボティクス・メカトロニクス講演会講演論文集(CD-ROM)  2010/06
• 人工生物のための遺伝子表現型に関する研究  [Not invited]

  萬谷和之, 鈴木育男, 山本雅人, 古川正志

  日本機械学会ロボティクス・メカトロニクス講演会講演論文集(CD-ROM)  2010/06
• 局所エネルギー最小可視化によるネットワークの大域的可視化  [Not invited]

  茂尾亮太, 鈴木育男, 山本雅人, 古川正志

  情報処理学会全国大会講演論文集  2010/03
• Webタグの階層的クラスタリング手法の提案  [Not invited]

  竹内尚, 鈴木育男, 山本雅人, 古川正志

  情報処理学会全国大会講演論文集  2010/03
• コミュニティ構造の影響を考慮したネットワーク成長モデルの提案  [Not invited]

  三好栄次, 鈴木育男, 山本雅人, 古川正志

  情報処理学会全国大会講演論文集  2010/03
• 振動子ネットワークからみた同期現象におけるネットワーク構造の変化  [Not invited]

  岩根慎司, 鈴木育男, 山本雅人, 古川正志

  情報処理学会全国大会講演論文集  2010/03
• 6A-2 Global visualization of the Complex Network by use of Local elastic Energy Minimization  [Not invited]

  SHIGEO Ryota, SUZUKI Ikuo, YAMAMOTO Masahito, FURUKAWA Masashi

  全国大会講演論文集  2010/03
• 6A-3 Change in network structure in synchronization phenomenon seen from oscillator network  [Not invited]

  IWANE Shinji, SUZUKI Ikuo, YAMAMOTO Masahito, FURUKAWA Masashi

  全国大会講演論文集  2010/03
• 6A-4 Proposal of the network growth model by influence of community structure  [Not invited]

  Miyoshi Eiji, SUZUKI Ikuo, YAMAMOTO Masahito, FURUKAWA Masashi

  全国大会講演論文集  2010/03
• 5D-6 Propose the hierarchical clustering method use of Web tags  [Not invited]

  竹内 尚, 鈴木 育男, 山本 雅人, 古川 正志

  全国大会講演論文集  2010/03
• Acquisition of locomotion and consideration of scalability for modular robot with an annular shape  [Not invited]

  米陀佳祐, 鈴木育男, 山本雅人, 古川正志

  精密工学会大会学術講演会講演論文集  2010/03
• Generating an animation of virtual creature with Central pattern generator  [Not invited]

  岩館健司, 鈴木育男, 山本雅人, 古川正志

  精密工学会大会学術講演会講演論文集  2010/03
• Acquisition of multi jointed robotic arm's task in virtual physics environment  [Not invited]

  蜂谷俊泰, 鈴木育男, 山本雅人, 古川正志

  精密工学会大会学術講演会講演論文集  2010/03
• A study on interrupt scheduling of a logistic center : Re-active scheduling comply with the interrupt time and the number of the urgent interrupt order  [Not invited]

  高橋麻希子, 渡辺美知子, 鈴木育男, 山本雅人, 古川正志

  精密工学会大会学術講演会講演論文集  2010/03
• Order batching method concidering item location in warehouse  [Not invited]

  坂本延寛, 鈴木育男, 山本雅人, 古川正志, 渡辺美知子

  精密工学会大会学術講演会講演論文集  2010/03
• Acquisition of flight behavior of artificial dragonfly model  [Not invited]

  徐拓, 鈴木育男, 山本雅人, 古川正志

  精密工学会大会学術講演会講演論文集  2010/03
• Acquisition of swimming behavior on polymorphic artificial creature  [Not invited]

  中村啓太, 鈴木育男, 山本雅人, 古川正志

  精密工学会大会学術講演会講演論文集  2010/03
• An acquisition of ceiling movement behavior by physics modeling  [Not invited]

  白石直樹, 鈴木育男, 山本雅人, 古川正志

  精密工学会大会学術講演会講演論文集  2010/03
• Research on the behavior of flying creatures in virtual environment  [Not invited]

  大江亮介, 鈴木育男, 山本雅人, 古川正志

  精密工学会大会学術講演会講演論文集  2010/03
• Local clustering organization for quadratic assignment problem  [Not invited]

  猿島悠輔, 鈴木育男, 山本雅人, 古川正志

  精密工学会大会学術講演会講演論文集  2010/03
• 1A2-F25 Is there chaos in snoring sounds?  [Not invited]

  MIKAMI Tsuyoshi, KOJIMA Yohichiro, YAMAMOTO Masahito, FURUKAWA Masashi

  ロボティクス・メカトロニクス講演会講演概要集  2010 

  This paper investigates chaotic properties of snoring sounds by a correlation dimension analysis, which is generally used to verify the existence of chaos in a time series. The ultimate goal of this study is to extract useful information from the nonlinear properties of snores so as to diagnose obstructive sleep apnea. For such purpose, many researchers have examined snoring sounds by linear frequency analysis such as Fourier Transform or Linear Predictive Coding, but the chaotic properties of snores have not been clarified so far and the existence of chaos has not yet been proved also. The authors adopt Grassberger-Procaccia method to determine the correlation dimension of snore attractors quantitatively.
• 2A1-F26 Study on Adaptive Behavior and Motion Mechanism for Elastic Circular Robot Consisting of Modular Units  [Not invited]

  YONEDA Keisuke, SUZUKI Ikuo, YAMAMOTO Masahito, FURUKAWA Masashi

  ロボティクス・メカトロニクス講演会講演概要集  2010 

  There are many studies on hardware and software experiments to control autonomous robots. This study has focused the elastic robot which has a body with multiple degrees of freedom. The elastic robots consist of homogeneous or heterogeneous simple modules. A feature of them is that their behavior is obtained by an each module movement based on local communications between linked modules. A physical simulation on the computer is carried out to achieve given tasks autonomously for a virtual elastic robot. Our goal is to acquire a control system in evolution and to analyze a motion mechanism for the obtained behavior.
• 2A2-F17 Acquisition of Multi-jointed Arm's Palm Tasks by Physics Simulation  [Not invited]

  HACHIYA Toshiyasu, SUZUKI Ikuo, YAMAMOTO Masahito, FURUKAWA Masashi

  ロボティクス・メカトロニクス講演会講演概要集  2010 

  This study aims at an acquisition of behaviors of a multi jointed arm under the virtual physics environment. The arm is controlled by a neural network. For this purpose, weights of the neural network are optimized by genetic algorithm. We give the task that is to continue bouncing a ball on a palm to this arm, and simulate how to control this arm under the virtual physics environment. It is verified that the arm obtains a proper behaviors through the simulation.
• 2A2-F19 Hybrid solutions on LCO for TSP  [Not invited]

  ICHINOSE Mitsuo, SUZUKI Ikuo, YAMAMOTO Masahito, FURUKAWA Masashi

  ロボティクス・メカトロニクス講演会講演概要集  2010 

  In this paper, we propose LCO Hybrid solutions for TSP. LCO is fine method for TSP, but once fall in local optimal solutions, LCO cannot escape from local optimal solutions. The results of our experiments show LCO Hybrids obtain more fine solutions than original LCO.
• 2A2-F21 An Acquisition of Ceiling Control of Multi-legged Robot by Physics Modeling  [Not invited]

  SHIRAISHI Naoki, SUZUKI Ikuo, YAMAMOTO Masahito, FURUKAWA Masashi

  ロボティクス・メカトロニクス講演会講演概要集  2010 

  We have studied an acquisition of ceiling control of multi-legged robot by simulation using physics modeling. In this study, we propose hanging robot model, and simulate an hanging control on some ceiling with difference projection. As a result, we present the proposed model can hang on some type ceiling.
• 2A2-F28 The Interrupt Re-scheduling of The Large-Scale Logistic Center  [Not invited]

  TAKAHASHI Makiko, WATANABE Michiko, SUZUKI Ikuo, YAMAMOTO Masahito, FURUKAWA Masashi

  ロボティクス・メカトロニクス講演会講演概要集  2010 

  The large-scale logistic center has played an important role in the mail order and Internet dealing system. In order to ship products based on customer order papers within due days, it is requested to control the logistic center effectively. This study focuses on the order-picking problem, one of problems efficiently to control the logistic center. A new criterion "Energy Minimization" is introduced into this problem. Then, LCO (Local Clustering Optimization) is applied to solve the problems. Based on above, this study is extended to the re-scheduling when urgent interrupt orders are requested. A re-scheduling method is proposed how the urgent interrupt orders are assigned and mixed into pre-determined schedule the proposed method based on LCO as well. The influence by the urgent interrupt is examined by simulation experiments, and we prove the effectiveness of the proposed method.
• 2A2-G03 Suggestion of the Order Picking Navigation Method in the Distribution Center  [Not invited]

  SAKAMOTO Nobuhiro, SUZUKI Ikuo, YAMAMOTO Masahito, FURUKAWA Masashi

  ロボティクス・メカトロニクス講演会講演概要集  2010 

  This study aims to propose the order picking navigation method in distribution center. For this purpose, we propose new solutions for two main problems, an item placement and an order batching. The objective of these problems is minimizing the order picking time. Therefore, our proposed methods optimize the item placement and order batching by using the order picking time as the fitness function. Numerical experiments using the data of the existent distribution center prove that our proposed methods improve the efficiently of order picking time.
• 2A2-G06 A solution of Large-scale TSP by use of LCO with Divide and Conquer Algorithm  [Not invited]

  ISHIKAWA Kazunori, SUZUKI Ikuo, YAMAMOTO Masahito, FURUKAWA Masashi

  ロボティクス・メカトロニクス講演会講演概要集  2010 

  The smaller the electroinc device becomes, the more the printed board becomes complex. Such a printed board requests for an NC boring machine to drill a fiw hundred thousand of holes. In order to efficiently drill holes, a drilling path must be as short as possible. This path planning is regarded as a large-scale TSP. This study proposed a new solution, which adopts LCO using "a divide and conquer strategy", for the large-scale TSP. Numerical experiments proves that the proposed method is capable of solving the large-scale TSP with practical computation time and accuracy, comparing with conventional LCO.
• 2A2-G08 Apply to quadratic assignment problem using LCO by evaluated value base  [Not invited]

  Furukawa Masashi, Yamamoto Masahito, Suzuki Ikuo, Sarushima Yusuke

  ロボティクス・メカトロニクス講演会講演概要集  2010 

  Quadratic Assignment problem (QAP) is Combinatorial optimization in NP-hard. Many methods have been applied to QAP, such as a branch and bound method, genetic algorithm, simulated annealing and taboo search and local clustering organization (LCO). In these Algorithms LCO can solved QAP faster than other methods. In this study we propose new method to solve QAP using LCO and proved that it can solve QAP more the effectiveness of the proposed method.
• 2P1-F26 The influence that a change of the network structure gives the behavior of the oscillators  [Not invited]

  IWANE Shinji, SUZUKI Ikuo, YAMAMOTO Masahito, FURUKAWA Masashi

  ロボティクス・メカトロニクス講演会講演概要集  2010 

  This paper investigates a synchronizing phenomenon of oscillators, coupled together in the form of the evolving complex network. The change in the network structure in the oscillator network considered changed of the network characteristics and distribution of natural frequency. The influence that the change in the network structure gave to the behavior of the oscillator in that case was investigated by the numerical experiments.
• 2P1-F27 Experiments of Flying Creature's Flights by Flapping in a Virtual Environment  [Not invited]

  OOE Ryosuke, SUZUKI Ikuo, YAMAMOTO Masahito, FURUKAWA Masashi

  ロボティクス・メカトロニクス講演会講演概要集  2010 

  In this paper, a virtual flying creature is modeled and its flight is simulated in a virtual environment. The virtual flying creature consists of a head, a body, a tail and two wings. It mainly flaps its wings for flying, and additionally tilts its wings for changing angles of elevation. The former motion is called flapping and the latter is called feathering. The virtual environment is made up of a physical engine library, which processes the motion and collision of rigid bodies, and a drag force expressing the force from fluid. Numerical experiments show the followings; (1) A virtual flying creature can fly by the flapping, and (2) The feathering changes the way to fly.
• 2P1-F29 A Study on Genotype Representation for Artificial Creature  [Not invited]

  YOROZUYA Kazuyuki, SUZUKI Ikuo, YAMAMOTO Masahito, FURUKAWA Masashi

  ロボティクス・メカトロニクス講演会講演概要集  2010 

  In this paper, we aim at the generation of the complex and diverse artificial creatures, we propose the genotype of the morphology of the artificial creature and the generating method based on that genotype. The results of our experiments show our method has the diversity and the availability.
• 2P1-G04 An Evolving Network Model with Synchronization of Coupled Oscillators and Analysis of Dynamics  [Not invited]

  OGASAWARA Hiroya, SUZUKI Ikuo, YAMAMOTO Masahito, FURUKAWA Masashi

  ロボティクス・メカトロニクス講演会講演概要集  2010 

  A new growing network model, which consists of coupled oscillators, is proposed. The network is growing up depending on two parameters, namely the coupling strength and network degree of oscillator. The criteria represented by H. Hong and M. Y. Choi is introduced into the model to make the network grow. The network feature and its growing dynamics are examined from a viewpoint of two parameters through numerical experiments. Obtained results show that the proposed model realizes some networks observed in a real world.
• 2P1-G05 Effect of Morphology to Swimming Ability for Artificial Creature in Under-water Environment  [Not invited]

  NAKAMURA Keita, SUZUKI Ikuo, YAMAMOTO Masahito, FURUKAWA Masashi

  ロボティクス・メカトロニクス講演会講演概要集  2010 

  We have studied behavior acquisition for artificial creatures swimming. The buoyancy and water drags for them are proposed as a virtual under-water environment based on the physics modeling. The artificial creature can acquire behaviors like real fish swimming. In this study, we simulate variously-shaped artificial creatures to acquire swimming behaviors. Results are discussed on a relation between a shape of the artificial creature and an acquired swimming behavior in under-water environment.
• 2P1-G06 Generating a Behavior of a Virtual Creature with Central Pattern Generator  [Not invited]

  IWADATE Kenji, SUZUKI Ikuo, YAMAMOTO Masahito, FURUKAWA Masashi

  ロボティクス・メカトロニクス講演会講演概要集  2010 

  In this study, we aim to evolving autonomous virtual creatures which have complex shapes in a complex environment. We implement a basic physics law and fluid influences with a virtual environment and evolve virtual creature in various environments. We adopt central pattern generator as controller of the virtual creature. Each model obtains an effective moving behavior in physical environment.
• 2P1-G14 Acquisition of Swimming on Artificial Creature by Use of Spring Elasticity  [Not invited]

  FUKUMOTO Akihiro, SUZUKI Ikuo, YAMAMOTO Masahito, FURUKAWA Masashi

  ロボティクス・メカトロニクス講演会講演概要集  2010 

  There are many studies to control the torque of the joint about the behavior of the artificial creature. But the real creature acts by the control of the muscle. In this study, I account elastic spring as a muscle and assume it to be the actuator of the artificial creature. And I let an artificial creature get a swimming behavior in virtual underwater environment.
• 人工ニューラルネットワークによる人工生物の自律行動生成  [Not invited]

  日本ロボット学会北海道ロボット技術研究専門委員会(RSJ-HRT)学術講演会講演論文集  2010
• 仮想流体環境の提案と飛行生物のモデル化  [Not invited]

  日本ロボット学会北海道ロボット技術研究専門委員会(RSJ-HRT)学術講演会講演論文集  2010
• 円環構造型モジュラーロボットの自律行動獲得  [Not invited]

  日本ロボット学会北海道ロボット技術研究専門委員会(RSJ-HRT)学術講演会講演論文集  2010
• 仮想水中環境における人工生物の遊泳獲得  [Not invited]

  第9回複雑系マイクロシンポジウム講演論文集  2010
• ノード間の動的相互作用を考慮したネットワーク成長モデルとそのダイナミクス  [Not invited]

  第9回複雑系マイクロシンポジウム講演論文集  2010
• 複雑ネットワークの特徴量に基づくHexゲーム戦略の解析に関する基礎研究  [Not invited]

  第9回複雑系マイクロシンポジウム講演論文集  2010
• 人工生物のための遺伝子表現型に関する基礎研究  [Not invited]

  第9回複雑系マイクロシンポジウム講演論文集  2010
• TSPに対するLCOのハイブリッドに関する研究  [Not invited]

  第9回複雑系マイクロシンポジウム講演論文集  2010
• 大規模TSPの局所組み合わせ部分問題最適化による大域的最適化法  [Not invited]

  石川和典, 鈴木育男, 山本雅人, 古川正志

  インテリジェント・システム・シンポジウム(CD-ROM)  2010
• PSOとLCOのハイブリッドによるTSPの解法  [Not invited]

  市瀬光生, 鈴木育男, 山本雅人, 古川正志

  インテリジェント・システム・シンポジウム(CD-ROM)  2010
• webページの情報粒度を考慮したタグを利用した階層クラスタリングの生成  [Not invited]

  竹内尚, 鈴木育男, 山本雅人, 古川正志

  インテリジェント・システム・シンポジウム(CD-ROM)  2010
• 弾性バネをアクチュエータとする人工生物の遊泳獲得実験  [Not invited]

  情報処理北海道シンポジウム2010講演論文集  2010
• 物流センター内の商品配置最適化法の提案  [Not invited]

  2010年度精密工学会秋季大会学術講演会講演論文集  2010
• LCOによる制約最適化問題への適用  [Not invited]

  2010年度精密工学会北海道支部学術講演会講演論文集  2010
• シミュレーションによる天井移動ロボットの行動の獲得と解析  [Not invited]

  2010年度精密工学会北海道支部学術講演会講演論文集  2010
• 抗力による蝶モデルの羽ばたき飛行解析  [Not invited]

  2010年度精密工学会北海道支部学術講演会講演論文集  2010
• 風影響下におけるトンボモデルの飛翔学習  [Not invited]

  2010年度精密工学会北海道支部学術講演会講演論文集  2010
• Artificial Flying Creature by Flapping  [Not invited]

  2010 IEEE International Conference on Systems, Man and Cybernetics (SMC2010)  2010
• 結合振動子を用いたネットワーク成長のモデル化  [Not invited]

  第11回(社)計測自動制御学会システムインテグレーション部門講演会論文集  2010
• 仮想水中環境における弾性バネを用いた人工生物の遊泳獲得  [Not invited]

  第11回(社)計測自動制御学会システムインテグレーション部門講演会論文集  2010
• 同期的構造最適化により創発される振動子ネットワークの特徴解析  [Not invited]

  第11回(社)計測自動制御学会システムインテグレーション部門講演会論文集  2010
• 人工生物のための形態創発に関する基礎研究  [Not invited]

  第11回(社)計測自動制御学会システムインテグレーション部門講演会論文集  2010
• The network growth model that considered community information  [Not invited]

  三好栄次, 鈴木育男, 山本雅人, 古川正志

  情報処理学会研究報告(CD-ROM)  2009/10
• Fast visualization of the complex network by use of local elastic energy minimization  [Not invited]

  茂尾亮太, 鈴木育男, 山本雅人, 古川正志

  情報処理学会研究報告(CD-ROM)  2009/10
• A New Solution for Vehicle Routing Problem Using Local Clustering Organization  [Not invited]

  坂本延寛, 鈴木育男, 渡辺美知子, 山本雅人, 古川正志

  情報処理学会研究報告(CD-ROM)  2009/10
• 複雑ネットワークにおけるパーコレーション伝播を考慮した振動子の同期現象  [Not invited]

  岩根 慎司, 鈴木 育男, 山本 雅人, 古川 正志

  情報処理北海道シンポジウム講演論文集  2009/10
• コミュニティ構造を用いたネットワーク成長モデル  [Not invited]

  三好 栄次, 鈴木 育男, 山本 雅人, 古川 正志

  情報処理北海道シンポジウム講演論文集  2009/10
• TSPにおけるLCOとメタヒューリスティックスの組み合わせ  [Not invited]

  市瀬 光生, 鈴木 育男, 山本 雅人, 古川 正志

  情報処理北海道シンポジウム講演論文集  2009/10
• 木構造モデルにおける結合振動子を用いた情報伝搬および同期現象の解析  [Not invited]

  小笠原 寛弥, 鈴木 育男, 山本 雅人, 古川 正志

  情報処理北海道シンポジウム講演論文集  2009/10
• 分散型LCOによる大規模TSPの解法  [Not invited]

  石川 和典, 鈴木 育男, 山本 雅人, 古川 正志

  情報処理北海道シンポジウム講演論文集  2009/10
• 個人や話題の特性を考慮した情報伝播モデルの提案  [Not invited]

  千葉 隆雄, 鈴木 育男, 山本 雅人, 古川 正志

  情報処理北海道シンポジウム講演論文集  2009/10
• GHSOMのパラメータ設定による計算時間の比較  [Not invited]

  竹内 尚, 鈴木 育男, 山本 雅人, 古川 正志

  情報処理北海道シンポジウム講演論文集  2009/10
• 仮想物理環境における弾性体を用いた魚モデルの行動獲得に関する基礎研究  [Not invited]

  福本 晃宏, 鈴木 育男, 山本 雅人, 古川 正志

  情報処理北海道シンポジウム講演論文集  2009/10
• ノードランキング手法の組み合わせによる人間が直感で付けたノードランキングの再現と考察  [Not invited]

  本庄 将也, 鈴木 育男, 山本 雅人, 古川 正志

  情報処理北海道シンポジウム講演論文集  2009/10
• 局所エネルギー最小化による可視化の高速化  [Not invited]

  茂尾 亮太, 鈴木 育男, 山本 雅人, 古川 正志

  情報処理北海道シンポジウム講演論文集  2009/10
• 木構造による仮想生物の形態のGenoType表現の提案  [Not invited]

  萬谷 和之, 鈴木 育男, 山本 雅人, 古川 正志

  情報処理北海道シンポジウム講演論文集  2009/10
• ネットワーク構造の局所最適化による可視化の高速化  [Not invited]

  茂尾亮太, 鈴木育男, 山本雅人, 古川正志

  インテリジェント・システム・シンポジウム講演論文集  2009/09
• ネットワーク構造の変化が振動子の挙動に与える影響  [Not invited]

  岩根慎司, 鈴木育男, 山本雅人, 古川正志

  インテリジェント・システム・シンポジウム講演論文集  2009/09
• A Study on Anibots' Modeling for Mob Behavior  [Not invited]

  川上祥, 鈴木育男, 山本雅人, 古川正志

  Dyn Des Conf (CD-ROM)  2009/09
• 局所クラスタリング組織化法による2次割り当て問題への適用  [Not invited]

  猿島 悠輔, 鈴木 育男, 山本 雅人, 古川 正志

  精密工学会北海道支部50周年記念学術講演会講演論文集  2009/09
• 多脚人工生物の行動獲得  [Not invited]

  尾尻 和也, 鈴木 育男, 山本 雅人, 古川 正志

  精密工学会北海道支部50周年記念学術講演会講演論文集  2009/09
• 近似流体環境下でのヘリコプターの挙動  [Not invited]

  大江 亮介, 鈴木 育男, 山本 雅人, 古川 正志

  精密工学会北海道支部50周年記念学術講演会講演論文集  2009/09
• A New Solution for Vehicle Routing Problem Using Local Clustering Organization  [Not invited]

  Nobuhiro Sakamoto, Ikuo Suzuki, Michiko Watanabe, Masahito Yamamoto, Masashi Furukawa

  IPSJ SIG Notes  2009/09 

  The Vehicle Routing Problem (VRP) is a well-known combinatorial optimization problem and has been widely studied because it arises in many situations. The objective of VRP is to find out m Hamilton paths for m vehicles, each of which delivers some goods (items) to demanded customers from a depot place and return to the same place under some criteria and constraints. This study proposes a new solution on VRP, applying "Local Clustering Organization (LCO)". LCO is a meta-heuristic method developed by one of our authors to give a highly accurate solution to the large-scale traveling salesman problem (TSP). It can deal with almost a hundred of thousands cities' TSP. The advantage of LCO is that it only uses costs among cities unlike recently developed other meta-heuristic solutions request cities' coordinates such as the self-organizing map (SOM) and the ant colony optimization (ACO). For the use of LCO to VRP, the algorithm of LCO is modified. Furthermore, a revised solution representation is presented. The proposed method and other meta-heuristic methods are attempted to solve some benchmark problems and randomly generated problems as numerical experiments. The experiments verify that the proposed method bring us good solutions in term of computation time and solution's accuracy.
• Fast visualization of the complex network by use of local elastic energy minimization  [Not invited]

  Ryota Shigeo, Ikuo Suzuki, Masahito Yamamoto, Masashi Furukawa

  IPSJ SIG Notes  2009/09 

  It becomes to make use of the network structure for representing many kind of relationship in many fields, where a set of entities and relationship among entities are described by a set of nodes and a set of links. Visualizing the network is a useful method to find and comprehend the network structure and its characteristic intuitively. this study focuses on a force-directed method, which is one of the most general methods. However, the computation time for visualization using this method becomes extremely large, as a size of networks grows larger. We propose a fast visualization method, which based on repeating local elastic energy minimization for randomly selected sub-networks. Numerical experiments verifies that the proposed method is capable of visualizing network fast with low computation time in comparing to conventional force-directed methods.
• The network growth model that considered community information  [Not invited]

  Eiji Miyoshi, Ikuo Suzuki, Masahito Yamamoto, Masashi Furukawa

  IPSJ SIG Notes  2009/09 

  There is a study of much network model, but, as for the most, a network grows up only by the state of the node that is the component of the network. However, the real network growth takes the influence by the community. In this study, We suggest the growth model that added community information to a rule of the growth of the network. In addition, with a change of the community structure by the network generation that applied suggestion technique. We observe a change by the progress about quantity of characteristic to numbers of increase and decrease of the number of the community, clustering origin in time, and we compare the suggestion model with CNN model about the growth process of the network.
• A study on animated robot : Acquisition of flying behavior by minimizing energy cost  [Not invited]

  森長 誠, 鈴木 育男, 山本 雅人, 古川 正志

  精密工学会秋季大会学術講演会講演論文集  2009/08
• A study on animated robot : Acquisition of swimming behavior on spindle artificial creature  [Not invited]

  中村 啓太, 鈴木 育男, 山本 雅人, 古川 正志

  精密工学会秋季大会学術講演会講演論文集  2009/08
• Evolving amphibian behavior on complex environment  [Not invited]

  岩館 健司, 鈴木 育男, 山本 雅人, 古川 正志

  精密工学会秋季大会学術講演会講演論文集  2009/08
• A study on interrupt scheduling of a logistic center : Re-active scheduling by the reinforcement learning  [Not invited]

  高橋 麻希子, 渡辺 美知子, 鈴木 育男, 山本 雅人, 古川 正志

  精密工学会秋季大会学術講演会講演論文集  2009/08
• Study on adaptive behavior and its behavioral analysis for virtual modular robot  [Not invited]

  米陀 佳祐, 鈴木 育男, 山本 雅人, 古川 正志

  精密工学会秋季大会学術講演会講演論文集  2009/08
• 242 The influence that a change of the network structure gives the behavior of the oscillators  [Not invited]

  IWANE Shinji, SUZUKI Ikuo, YAMAMOTO Masahito, HURUKAWA Masashi

  Dynamics & Design Conference  2009/08 

  This paper investigates a synchronizing phenomenon of oscillators, coupled together in the form of the evolving complex network. The percolation theory is introduced to represent the evolving complex network, where nodes and links correspond to the oscillators and signal transfer relation respectively. Numerical experiments show that the synchronization phenomena depend on the structures of the evolving complex networks.
• 317 Swing-up control of multi-link inverted pendulum system by use of physical modeling  [Not invited]

  SHIRAISHI Naoki, SUZUKI Ikuo, YAMAMOTO Masahito, FURUKAWA Masashi

  Dynamics & Design Conference  2009/08 

  We propose the control method with the artificial neural network (ANN). The synaptic weights of ANN are explored with the genetic algorithm, which is one of the evolutionary computing methods. In this paper, we perform the swing-up control experiments of the single inverted pendulum in the virtual space by the physical law. As the result, we verified that our proposed method is possible to acquire the optimal controller for the single inverted pendulum to a limited moving range.
• 318 Acquisition of Adaptive Behavior for Virtual Modular Robot Using Evolutionary Computation  [Not invited]

  YONEDA Keisuke, SUZUKI Ikuo, YAMAMOTO Masahito, FURUKAWA Masashi

  Dynamics & Design Conference  2009/08 

  There are many studies on hardware and software experiments to control a modular robot. The modular robot consists of homogeneous or heterogeneous simple modules. A feature of it is that the modular robot behavior is obtained by an each module movement based on local communications between linked modules. This study focuses on a computer simulation obeying physics laws for a virtual modular robot. This simulation aims at achieving given tasks autonomously for it in specific circumstances. Our goal is to acquire a control system in evolution for the virtual modular robot and to analyze and evaluate their behavior.
• 319 A Study on Animated Robot : Crawling of multi-legged artificial creature  [Not invited]

  OJIRI Kazuya, SUZUKI Ikuo, YAMAMOTO Masahito, FURUKAWA Masashi

  Dynamics & Design Conference  2009/08 

  This study attempts to acquire autonomous behaviors on an artificial creature with multi-legs. We adopted physics modeling to represent the artificial creature in a virtual environment governed by the physics low. The model is equipped with actuator, controller, and self-evolution mechanism. Simulation results show the creature successfully acquires harmonious walking. And the experiment succeeded in the acquisition of the walk toward the light source. Furthermore, we discuss the obtained behaviors by comparing with the difference body segment number or control law.
• 323 A Study on Anibots' Modeling for Mob Behavior  [Not invited]

  KAWAKAMI Akira, SUZUKI Ikuo, YAMAMOTO Masahito, FURUKAWA Masashi

  Dynamics & Design Conference  2009/08 

  Anibot (animated robot) is a software robot with sensors, actuators, and controllers under physical laws environment. We have developed the modeling tool allowing us to model it and simulate its behavior. This study examined acquisition of mob behavior for Anibot by two numerical experiments. The first experiment is acquisition of the circumambiency action of the light source by the several car type robots. The second experiment is to acquire the burden action of the two load-carrying robots.
• 324 Acquisition of Stable Flying Behavior under the Virtual Air Environment  [Not invited]

  Morinaga Makoto, SUZUKI Ikuo, YAMAMOTO Masahito, FURUKAWA Masashi

  Dynamics & Design Conference  2009/08 

  This study aims at an acquisition of the stable flying under the virtual air environment that models the drag and the buoyancy.The designed model is inspired by existing creatures with several wings, and controlled by the artificial neural network.Simulations by these models are carried out to evolve the proper behaviors by genetic algorithm.Simulation results verify that these models can fly stably by using wingstroke and gliding under the virtual air environment.
• 325 A Study on Animated Robot : Acquisition of Swimming Behavior on Artificial Creature  [Not invited]

  NAKAMURA Keita, SUZUKI Ikuo, YAMAMOTO Masahito, FURUKAWA Masashi

  Dynamics & Design Conference  2009/08 

  In this study, we model the under-water environmental influence based on the physics modeling. And we propose a simulation method for artificial creature swimming in consideration of buoyancy and water drags as a virtual water environment. As a result of simulation, we verify that it is possible for articial creature to acquire the swimming behavior in the under-water environment. Additionally we analyze of the acquired swimming behavior.
• 326 Can da Vinci Helicopter fly?  [Not invited]

  OOE Ryosuke, Suzuki Ikuo, Yamamoto Masahito, Furukawa Masashi

  Dynamics & Design Conference  2009/08 

  We have proposed a fluid repulsion computation method as an environment field force to simulate the object motion in fluid. It is capable of simulating fast, real-time and dynamic object motion in the fluid. This study verifies that the proposed method is more applicable for simulating the object motion in many situations in the fluid. We especially focus on a simple helicopter equipped with a circular wing. Numerical experiments show the followings; (1) the helicopter flight can be controlled by Artificial neural network, (2) fluid repulsion force can be figured out by uniformly dividing the wing area, (3) it is possible to compute the fluid repulsion force by the fewer number of dividing wing area, and (4) we find a better wing shape of da Vinci helicopter by analyzing da Vinci's helicopter in simulation and making a model of da Vinci's helicopter in the real world.
• 327 Evolving a behavior of artificial creatures in plural environments  [Not invited]

  IWADATE Kenji, SUZUKI Ikuo, YAMAMOTO Masahito, FURUKAWA Masashi

  Dynamics & Design Conference  2009/08 

  In this study, we aim to evolving autonomous virtual creatures which have complex shapes in a complex environment. We implement a basic physics law and fluid influences with a virtual environment and evolve artificial creatures in plural environments (on the ground, in the water). Each model, which is evolved in a different environment, obtains an effective moving behavior in each environment (looks like walking, and swimming).
• 2A2-C18 Can da Vinci Helicopter fly?  [Not invited]

  OOE Ryosuke, SUZUKI Ikuo, YAMAMOTO Masahito, FURUKAWA Masashi

  ロボティクス・メカトロニクス講演会講演概要集  2009/05 

  This paper proposes an approximate fluid environment that enables, fast, real-time and dynamic simulations. It calculates drag on the basis of a flat board in a uniform flow. Drag and motions are processed by physical engine PhysX. To verify the effect of this environment, we analyze a simple helicopter's motion. We examine that this helicopter acquires the motion to satisfy a given purpose. For control and study of helicopter, we use an artificial neural network and particle swarm optimization. Moreover, we analyze the helicopter based on Leonardo da Vinci's sketch under this environment. The result of analysis leads us to improve a shape of wing in Leonardo's sketch. To show a capacity for flight of the improved shape of wing, we experiment helicopter flight in the real environment.
• 2A2-D08 Study on Animated Robot : Evolving a behavior of artificial creatures in plural environments  [Not invited]

  IWADATE Kenji, YONEDA Keisuke, SUZUKI Ikuo, YAMAMOTO Masahito, FURUKAWA Masashi

  ロボティクス・メカトロニクス講演会講演概要集  2009/05 

  In this study, we aim to evolving behavior of virtual creatures on complex environment. We implement a basic physics law and fluid influences to virtual environment and evolve artificial creatures in plural environments (on the ground, in the water). Each model which is evolved on different environment obtains an effective behavior for moves on each environment (looks like walking, and swimming).
• 2A2-D09 A Study on Animated Robot : Acquisition of Swimming Behavior on Artificial Creature  [Not invited]

  NAKAMURA Keita, SUZUKI Ikuo, YAMAMOTO Masahito, FURUKAWA Masashi

  ロボティクス・メカトロニクス講演会講演概要集  2009/05 

  This study, proposes an acquisition method on artificial creature swimming. The method takes consideration in buoyancy and water drags as a virtual water environment based on the physics modeling. Additionally acquired swimming behaviors are analyzed in detail.
• 2A2-D12 Swing-up control of multi-link inverted pendulum system by use of physical modeling  [Not invited]

  SHIRAISHI Naoki, SUZUKI Ikuo, YAMAMOTO Masahito, FURUKAWA Masashi

  ロボティクス・メカトロニクス講演会講演概要集  2009/05 

  We propose the control method with the artificial neural network (ANN). The synaptic weights of ANN are explored with the genetic algorithm, which is one of the evolutionary computing methods. In this paper, we perform the swing-up control experiments of the single inverted pendulum in the virtual space by the physical law. As the result, we verified that our proposed method is possible to acquire the optimal controller for the single inverted pendulum to a limited moving range.
• 2A2-E04 Study on Adaptive Behavior and Motion Mechanism for a Virtual Modular Robot  [Not invited]

  YONEDA Keisuke, SUZUKI Ikuo, YAMAMOTO Masahito, FURUKAWA Masashi

  ロボティクス・メカトロニクス講演会講演概要集  2009/05 

  There are many studies on hardware and software experiments about controlling a modular robot. The modular robot consists of homogeneous or heterogeneous simple modules. A feature of them is that the modular robot behavior is obtained by an each module movement based on local communications between linked modules. This study focuses on a computer simulation obeying physics laws for a virtual modular robot. This simulation aims at achieving given tasks autonomously for it in specific circumstances. Our goal is to acquire a control system in evolution for the virtual modular robot and to analyze and evaluate their behavior.
• Study on Adaptive Behavior and Motion Mechanism for a Virtual Modular Robot  [Not invited]

  米陀佳祐, 鈴木育男, 山本雅人, 古川正志

  日本機械学会ロボティクス・メカトロニクス講演会講演論文集(CD-ROM)  2009/05
• Can da Vinci Helicopter fly?  [Not invited]

  大江亮介, 鈴木育男, 山本雅人, 古川正志

  日本機械学会ロボティクス・メカトロニクス講演会講演論文集(CD-ROM)  2009/05
• Study on Animated Robot-Evolving a behavior of artificial creatures in plural environments-  [Not invited]

  岩館健司, 米陀佳祐, 鈴木育男, 山本雅人, 古川正志

  日本機械学会ロボティクス・メカトロニクス講演会講演論文集(CD-ROM)  2009/05
• Swing-up control of multi-link inverted pendulum system by use of physical modeling  [Not invited]

  白石直樹, 鈴木育男, 山本雅人, 古川正志

  日本機械学会ロボティクス・メカトロニクス講演会講演論文集(CD-ROM)  2009/05
• A Study on Animated Robot-Acquisition of Swimming Behavior on Artificial Creature-  [Not invited]

  中村啓太, 鈴木育男, 山本雅人, 古川正志

  日本機械学会ロボティクス・メカトロニクス講演会講演論文集(CD-ROM)  2009/05
• Effects of the generation method of scale-free networks and their power-law exponents on the synchronization of coupled oscillator networks  [Not invited]

  MURATA Kenta, SUZUKI Ikuo, YAMAMOTO Masahito, FURUKAWA Masashi

  Journal of Japan Society for Fuzzy Theory and Intelligent Informatics  2009/04 

  We examine effects of the generation method of scale-free networks with a small clustering coefficient and their power-law exponents on the synchronization of coupled oscillator networks. A modified Kuramoto model is introduced as a model of coupled oscillator networks. Networks employed for examinations are generated by a preferential attachment and configuration model. Under these conditions, the relationship between the coherence R and the power-law exponent γT is investigated by numerical computation. In addition, the relationship between the R and the coupling strength σ is also investigated. As a result, it is found that (1) the global phase synchronization occurs in the large number σ independent of network generation methods and γT, (2) R gradually decreases as γT increases under the global phase synchronization, (3) the coherence R depends on network topologies in the range of 2 < σ < 7, where γT, which strongly affects the coherence too, increases as σ increases, and (4) the relaxation time of coherence depends on network topologies as well as R in the range 2 < σ < 7.
• Modularityを用いた複雑ネットワークの成長と構築に関する研究  [Not invited]

  三好栄次, 鈴木育男, 山本雅人, 古川正志

  情報処理学会全国大会講演論文集  2009/03
• 個人の特性と話題を考慮した情報伝播モデルの研究  [Not invited]

  千葉隆雄, 鈴木育男, 山本雅人, 古川正志

  情報処理学会全国大会講演論文集  2009/03
• 自己組織化を利用したネットワーク可視化の評価と比較  [Not invited]

  岩田泰士, 鈴木育男, 山本雅人, 古川正志

  情報処理学会全国大会講演論文集  2009/03
• 2B-5 A Study of A Information Propagation Model Related with Topic and Person Characteristics  [Not invited]

  CHIBA Takao, SUZUKI Ikuo, YAMAMOTO Masahito, FURUKAWA Masashi

  全国大会講演論文集  2009/03
• 3B-2 Research on growth and construction of complex network using with Modularity  [Not invited]

  Miyoshi Eiji, SUZUKI Ikuo, YAMAMOTO Masahito, FURUKAWA Masashi

  全国大会講演論文集  2009/03
• 3B-4 Comparison and evaluation of Network Visualization based on Self-Organization  [Not invited]

  IWATA Yasushi, SUZUKI Ikuo, YAMAMOTO Masahito, FURUKAWA Masashi

  全国大会講演論文集  2009/03
• A study on animated robot : Acquisition of stable flying behavior  [Not invited]

  森長 誠, 鈴木 育男, 山本 雅人, 古川 正志

  精密工学会春季大会学術講演会講演論文集  2009/02
• Action acquisition of multi-legged artificial creature on the basis of physics modeling  [Not invited]

  尾尻 和也, 鈴木 育男, 山本 雅人, 古川 正志

  精密工学会春季大会学術講演会講演論文集  2009/02
• A study on re-scheduling of order-picking turned by urgent interrupt orders  [Not invited]

  高橋麻希子, 渡辺美知子, 鈴木育男, 山本雅人, 古川正志

  精密工学会大会学術講演会講演論文集  2009/02
• Applying local clustering optimization to vehicle routing problem and its verification by numerical experiments  [Not invited]

  坂本延寛, 鈴木育男, 山本雅人, 古川正志, 渡辺美知子

  精密工学会大会学術講演会講演論文集  2009/02
• A study on animated robot : Underwater behavior of virtual creatures  [Not invited]

  中村啓太, 鈴木育男, 山本雅人, 古川正志

  精密工学会大会学術講演会講演論文集  2009/02
• The influence that a change of the network structure gives the behavior of the oscillators  [Not invited]

  岩根慎司, 鈴木育男, 山本雅人, 古川正志

  Dyn Des Conf (CD-ROM)  2009
• Acquisition of Adaptive Behavior for Virtual Modular Robot Using Evolutionary Computation  [Not invited]

  米陀佳祐, 鈴木育男, 山本雅人, 古川正志

  Dyn Des Conf (CD-ROM)  2009
• Can da Vinci Helicopter fly?  [Not invited]

  大江亮介, 鈴木育男, 山本雅人, 古川正志

  Dyn Des Conf (CD-ROM)  2009
• Swing-up control of multi-link inverted pendulum system by use of physical modeling  [Not invited]

  白石直樹, 鈴木育男, 山本雅人, 古川正志

  Dyn Des Conf (CD-ROM)  2009
• 仮想水中環境における人工生物の遊泳獲得  [Not invited]

  中村 啓太, 鈴木 育男, 山本 雅人, 古川 正志

  第10回AI若手の集い MYCOM2009  2009 

  本研究では，人工生物が水中生物に見られる遊泳を獲得することを目的とし，水の影響力である浮力，抗力をモデル化した仮想水中環境を構築を行う．更に，構築した環境下で，物理モデリングに基づく遊泳獲得シミュレーション方法を提案し，人工生物の遊泳獲得を行い，獲得した遊泳挙動を解析した．
• 空間の動的分割を利用したネットワークの可視化  [Not invited]

  第8回複雑系マイクロシンポジウム講演論文集  2009
• 自律仮想ロボットAnibotの開発  [Not invited]

  第8回複雑系マイクロシンポジウム講演論文集  2009
• 空気環境下における紙飛行機の飛行モデリングとその学習  [Not invited]

  第8回複雑系マイクロシンポジウム講演論文集  2009
• 個人の特性と話題を考慮した情報伝搬モデルの研究  [Not invited]

  情報処理学会第71回全国大会講演論文集  2009
• 物理モデリングによる倒立振子の制御  [Not invited]

  第8回複雑系マイクロシンポジウム講演論文集  2009
• 局所クラスタリング組織化法の配送計画問題への適用  [Not invited]

  第8回複雑系マイクロシンポジウム講演論文集  2009
• 複雑ネットワークのコミュニティ成長モデルとその解析  [Not invited]

  第8回複雑系マイクロシンポジウム講演論文集  2009
• A Study of an Information Propagation Model Relted with Topic and Person Characteristics  [Not invited]

  Proceedings o Aplications of Physics in Financial Analysis 7th International Conference  2009
• 二部グラフにおける多対多の関係を持つコミュニティを評価するモジュラリティ  [Not invited]

  ネットワークが創発する知能研究会(JWEIN09)講演論文集  2009
• Evolving a behavior of artificial creatures in plural environments  [Not invited]

  岩館健司, 鈴木育男, 山本雅人, 古川正志

  Dyn Des Conf (CD-ROM)  2009
• ダ・ヴィンチのヘリコプターは飛ぶか？  [Not invited]

  Dynamics and Design Conference 2009 (D&D 2009)  2009
• A Study on Animated Robot-Acquisition of Swimming Behavior on Artificial Creature-  [Not invited]

  中村啓太, 鈴木育男, 山本雅人, 古川正志

  Dyn Des Conf (CD-ROM)  2009
• Acquisition of Stable Flying Behavior under the Virtual Air Environment  [Not invited]

  森長誠, 鈴木育男, 山本雅人, 古川正志

  Dyn Des Conf (CD-ROM)  2009
• A Study on Animated Robot-Crawling of multi-legged artificial creature-  [Not invited]

  尾尻和也, 鈴木育男, 山本雅人, 古川正志

  Dyn Des Conf (CD-ROM)  2009
• 進化的手法を用いた仮想モジュラーロボットの適応行動の獲得  [Not invited]

  Dynamics and Design Conference 2009 (D&D 2009)  2009
• 仮想物理環境における直列多重倒立振子の振り上げ制御シミュレーション  [Not invited]

  Dynamics and Design Conference 2009 (D&D 2009)  2009
• Animated Robot の研究－仮想空気環境下における飛翔行動の獲得－  [Not invited]

  第10回(社)計測自動制御学会システムインテグレーション部門講演会論文集  2009
• 個人や話題の特性を考慮した情報伝搬モデルの提案  [Not invited]

  情報処理北海道シンポジウム2009講演論文集  2009
• 複雑ネットワークにおけるパーコレーション伝搬を考慮した振動子の同期現象  [Not invited]

  情報処理北海道シンポジウム2009講演論文集  2009
• 多節人工生命の行動獲得  [Not invited]

  第10回(社)計測自動制御学会システムインテグレーション部門講演会論文集  2009
• 物理モデラーTIPS-PMの物理教育ソフトへの応用  [Not invited]

  第10回(社)計測自動制御学会システムインテグレーション部門講演会論文集  2009
• 状態遷移量に基づく屋内小型自律飛行船の動作設計に関する検討  [Not invited]

  高谷敏彦, 川村秀憲, 山本雅人, 大内東

  Ricoh Tech Rep  2008/12
• コミュニティ構造の視認性を高めるネットワーク可視化手法に関する一考察  [Not invited]

  岩田 泰士, 鈴木 育男, 山本 雅人, 古川 正志

  情報処理北海道シンポジウム2008講演論文集  2008/09
• 複雑ネットワークのパーコレーションによる同期現象  [Not invited]

  岩根 慎司, 鈴木 育男, 山本 雅人, 古川 正志

  情報処理北海道シンポジウム2008講演論文集  2008/09
• コミュニティ分割されたコミュニティの特性解析  [Not invited]

  三好 栄次, 鈴木 育男, 山本 雅人, 古川 正志

  情報処理北海道シンポジウム2008講演論文集  2008/09
• 情報伝播モデルによる情報伝播パターンの研究  [Not invited]

  千葉 隆雄, 鈴木 育男, 山本 雅人, 古川 正志

  情報処理北海道シンポジウム2008講演論文集  2008/09
• 2-S-5 観光情報学会誌にみる国内研究動向(観光とOR(1))  [Not invited]

  山本 雅人, 鈴木 育男, 古川 正志

  日本オペレーションズ・リサーチ学会秋季研究発表会アブストラクト集  2008/09
• アニボットのコピー機能によるモデリングと強調行動の獲得  [Not invited]

  川上 祥, 鈴木 育男, 山本 雅人, 古川 正志

  2008年度精密工学会北海道支部学術講演会講演論文集  2008/09
• エネルギー基準によるオーダーピッキングの最適バッチングの作成  [Not invited]

  高橋 麻希子, 鈴木 育男, 山本 雅人, 古川 正志, 渡辺 美知子

  2008年度精密工学会北海道支部学術講演会講演論文集  2008/09
• 局所クラスタリング組織化法によるn-TSPの解法  [Not invited]

  坂本 延寛, 鈴木 育男, 山本 雅人, 古川 正志, 渡辺 美知子

  2008年度精密工学会北海道支部学術講演会講演論文集  2008/09
• 物理モデリングにおける直列多リンク倒立振子の制御  [Not invited]

  白石 直樹, 鈴木 育男, 山本 雅人, 古川 正志

  2008年度精密工学会北海道支部学術講演会講演論文集  2008/09
• 物理モデリングによる紙飛行機のボイドの研究  [Not invited]

  徐 拓, 鈴木 育男, 山本 雅人, 古川 正志

  2008年度精密工学会北海道支部学術講演会講演論文集  2008/09
• Control of Indoor Balloon Robot with Time Constraints  [Not invited]

  TAKAYA Toshihiko, KAWAMURA Hidenori, YAMAMOTO Masahito, OHUCHI Azuma

  IEEJ Transactions on Electronics, Information and Systems  2008/09 

  Recent studies have been mainly engaged with movements by 2 or more autonomous robots.Especially, the development of autonomous robots utilized by the industrial manufacture has been advancing.However, the extent of these researches was limited to robots moving in 3 dimensional autonomous robots, such as airplanes or helicopters.On the other hand, regarding studies on small size indoor 3 dimensional blimp robots, characteristics of entertainment robots, indoor surveillance robots, object searching robots in disaster building have been subject to investigation.However, previous studies drew the attention to the difficulties arising when the cooperative behavior of 2 or more autonomous blimp robots is strongly presented depending on changes in the experimental environment, denoting the weak points of these systems.In this paper, 2 small size autonomous blimp robots were used, and basic experiments with time constraints of behavior control were conducted, examining possible coordinated movements of 2 small size autonomous blimp robots, for the purpose of high application achievement of utility.
• A study on animated robot : Acquisition of the underwater behavior control  [Not invited]

  中村 啓太, 鈴木 育男, 山本 雅人, 古川 正志

  精密工学会秋季大会学術講演会講演論文集  2008/09
• A study on animated robot : Acquisition of the flying behavior  [Not invited]

  森長 誠, 鈴木 育男, 山本 雅人, 古川 正志

  精密工学会秋季大会学術講演会講演論文集  2008/09
• A study on animated robot : Behavior control for flexible structure model  [Not invited]

  米陀 佳祐, 岩館 健司, 鈴木 育男, 山本 雅人, 古川 正志

  精密工学会秋季大会学術講演会講演論文集  2008/09
• A study on animated robot : Evolving adaptive behavior on complex environment  [Not invited]

  岩館 健司, 米陀 佳祐, 鈴木 育男, 山本 雅人, 古川 正志

  精密工学会秋季大会学術講演会講演論文集  2008/09
• ネットワークモデルを用いた異なるカテゴリ間の嗜好性の解析  [Not invited]

  山下翔, 鈴木育男, 山本雅人, 古川正志

  情報科学技術フォーラム講演論文集  2008/08
• ネットワーク間狭小性によるネットワークの時系列解析  [Not invited]

  森岡淳, 古川正志, 山本雅人, 鈴木育男

  情報科学技術フォーラム講演論文集  2008/08
• 二部グラフにおけるクラスタリングアルゴリズムの比較  [Not invited]

  原田恵雨, 鈴木育男, 山本雅人, 古川正志

  情報科学技術フォーラム講演論文集  2008/08
• F-053 Comparing Clustering Algorithms in Bipartite Networks  [Not invited]

  HARADA Keiu, SUZUKI Ikuo, YAMAMOTO Masahito, FURUKAWA Masashi

  情報科学技術フォーラム講演論文集  2008/08
• F-054 An analysis of preference information between different categories using network model  [Not invited]

  山下 翔, 鈴木 育男, 山本 雅人, 古川 正志

  情報科学技術フォーラム講演論文集  2008/08
• F-056 Time Series Analysis of Network Based on Network Small-worldness Quantification  [Not invited]

  Morioka Jun, Furukawa Masashi, Yamamoto Masahito, Suzuki Ikuo

  情報科学技術フォーラム講演論文集  2008/08
• 2P2-G15 Study of Animated Robot : Modeling Water Environment for Physics Modeling  [Not invited]

  Nakamura Keita, SUZUKI Ikuo, YAMAMOTO Masahito, FURUKAWA Masashi

  ロボティクス・メカトロニクス講演会講演概要集  2008/06 

  This study, I accurately modeled underwater environmental influence and am aimed for modeling of the behavior of the object in the environment. As a result of these modeling, I report that it is possible that the behavior simulation of the object in the underwater environment.
• 2P2-G17 A Study on Animated Robot : Installment of Air Atmosphere Environment in Physics Modeling  [Not invited]

  MORINAGA Makoto, SUZUKI Ikuo, YAMAMOTO Masahito, FURUKAWA Masashi

  ロボティクス・メカトロニクス講演会講演概要集  2008/06 

  This study aims at acquirements of an object (animated robot) motion under the air environment based on physics modeling. We introduce several resistance forces of the air into physics modeling as the air environment. Simulations on falling objects and gliding one in the air verify that their movement reflects with the realistic world phenomenon in the air.
• 2P2-G19 A study on Animated Robot : Learning and Controlling for Elastic Obects  [Not invited]

  YONEDA Keisuke, IWADATE Kenji, SUZUKI Ikuo, YAMAMOTO Masahito, FURUKAWA Masashi

  ロボティクス・メカトロニクス講演会講演概要集  2008/06 

  This study proposes Anibot (Animated Robot), which can behave autonomously in the virtual environment. A difference between Anibot and a conventional animation is that Anibot behavior follows a physical law. This report focuses on modeling tools newly developed to create Anibot, and simulates learning and controlling for an elastic model of Anibot.
• 2P2-G21 A study on Animated Robot : Learning and Controlling for Rigid Objects  [Not invited]

  IWADATE Kenji, YONEDA Keisuke, SUZUKI Ikuo, YAMAMOTO Masahito, FURUKAWA Masashi

  ロボティクス・メカトロニクス講演会講演概要集  2008/06 

  In the 3D-CG animation, many creators waste their time on creating the motion of object. Therefore, we develop a new modeling software for rigid objects. This software has the automatic modeling function based on the lows of physics. This paper describes the structure of modeling software, and shows examples of creating motions.
• 2P2-G22 Emergence of school movement on different characteristics of complex network  [Not invited]

  Kawada Shin, Suzuki Ikuo, Yamamoto Masahito, Furukawa Masashi

  ロボティクス・メカトロニクス講演会講演概要集  2008/06 

  This study focuses on emergence of heterogeneous personal characteristics in a society. Such characteristics can be observed in not only human but also many organism, and deeply effect on personal making-decision and action. This paper treats with a swarm-agent model in order to examine how and what heterogeneous personal characteristics become diversified. A pursuit problem is set for the swarm-agent to efficiently capture a run-away object in cooperation. First, numerical simulations which the number of agents is changed, we observed that agents' characteristics become diversified. Next, complex network is adopted for the swarm-agent communication and we observed swarm-agents' behavior.
• A Study on Animated Robot-Installment of Air Atmosphere Environment in Physics Modeling-  [Not invited]

  森長誠, 鈴木育男, 山本雅人, 古川正志

  日本機械学会ロボティクス・メカトロニクス講演会講演論文集(CD-ROM)  2008/06
• A study on Animated Robot-Learning and Controlling for Rigid Objects-  [Not invited]

  岩館健司, 米陀佳祐, 鈴木郁男, 山本雅人, 古川正志

  日本機械学会ロボティクス・メカトロニクス講演会講演論文集(CD-ROM)  2008/06
• Emergence of school movement on different characteristics of complex network  [Not invited]

  川田晋, 鈴木育夫, 山本雅人, 古川正志

  日本機械学会ロボティクス・メカトロニクス講演会講演論文集(CD-ROM)  2008/06
• A study on Animated Robot-Learning and Controlling for Elastic Obects-  [Not invited]

  米陀佳祐, 岩館健司, 鈴木育男, 山本雅人, 古川正志

  日本機械学会ロボティクス・メカトロニクス講演会講演論文集(CD-ROM)  2008/06
• Study of Animated Robot-Modeling Water Environment for Physics Modeling-  [Not invited]

  中村啓太, 鈴木育男, 山本雅人, 古川正志

  日本機械学会ロボティクス・メカトロニクス講演会講演論文集(CD-ROM)  2008/06
• 異なるカテゴリの嗜好情報に対する特徴解析及び評価  [Not invited]

  山下翔, 鈴木育男, 山本雅人, 古川正志

  情報処理学会全国大会講演論文集  2008/03
• 自己組織化を利用したネットワークの三次元可視化  [Not invited]

  岩田泰士, 鈴木育男, 山本雅人, 古川正志

  情報処理学会全国大会講演論文集  2008/03
• 評判伝播ネットワークの成長モデルに関する基礎研究  [Not invited]

  千葉隆雄, 鈴木育男, 山本雅人, 古川正志

  情報処理学会全国大会講演論文集  2008/03
• ノード間関係の類似度を定量化するネットワーク間狭小性  [Not invited]

  森岡淳, 古川正志, 山本雅人, 鈴木育男

  情報処理学会全国大会講演論文集  2008/03
• 6A-3 3D Visualization of Network based on Self-Organization  [Not invited]

  IWATA Yasushi, SUZUKI Ikuo, YAMAMOTO Masahito, FURUKAWA Masashi

  全国大会講演論文集  2008/03
• 6A-4 Evolving Network Model for Reputation Propagation  [Not invited]

  CHIBA Takao, SUZUKI Ikuo, YAMAMOTO Masahito, FURUKAWA Masashi

  全国大会講演論文集  2008/03
• 5B-8 An analysis of preference informations between different categories  [Not invited]

  YAMASHITA Sho, SUZUKI Ikuo, YAMAMOTO Masahito, FURUKAWA Masashi

  全国大会講演論文集  2008/03
• Animated Robotの研究―モデリングツールの開発(I)―  [Not invited]

  岩館健司, 米陀佳祐, 柴田勝也, 鈴木育男, 山本雅人, 古川正志

  精密工学会大会学術講演会講演論文集  2008/03
• 大規模物流システムにおける集配ナビゲーションの実用化  [Not invited]

  宮脇恵里, 渡辺美智子, 鈴木育男, 山本雅人, 古川正志

  精密工学会大会学術講演会講演論文集  2008/03
• 物理法則に基づく物体の水中環境の構築  [Not invited]

  中村啓太, 鈴木育男, 山本雅人, 古川正志

  精密工学会大会学術講演会講演論文集  2008/03
• Animated Robotの研究―モデリングツールの開発(II)―  [Not invited]

  米陀佳祐, 岩舘健司, 柴田勝也, 鈴木育男, 山本雅人, 古川正志

  精密工学会大会学術講演会講演論文集  2008/03
• 物理法則に基づく物体の空気環境の構築  [Not invited]

  森長誠, 鈴木育男, 山本雅人, 古川正志

  精密工学会大会学術講演会講演論文集  2008/03
• The character extraction of tag co-occurring networks on Nicovideo  [Not invited]

  伊藤 聖修, 鈴木 育男, 山本 雅人

  知識ベ-スシステム研究会  2008/01
• A relationship between the synchronization and the vertex degree on the coupled oscillator system on complex networks  [Not invited]

  村田 賢太, 鈴木 育男, 山本 雅人

  知識ベ-スシステム研究会  2008/01
• Basic study of hot topics detection on social bookmark services  [Not invited]

  大和田 純, 鈴木 育男, 山本 雅人

  知識ベ-スシステム研究会  2008/01
• 観光情報学会誌にみる国内研究動向  [Not invited]

  山本雅人, 鈴木育男, 古川正志

  日本オペレーションズ・リサーチ学会秋季研究発表会アブストラクト集  2008
• 複雑ネットワーク上の結合振動子における次数と同期の関係  [Not invited]

  第80回人工知能学会知識ベース研究会  2008
• ニコニコ動画におけるタグ共起ネットワークの特徴抽出  [Not invited]

  第80回人工知能学会知識ベース研究会  2008
• ソーシャルブックマークにおける流行抽出のための基礎研究  [Not invited]

  第80回人工知能学会知識ベース研究会  2008
• 物理モデリングにおける空気環境の構築  [Not invited]

  第7回複雑系マイクロシンポジウム  2008
• 異なるカテゴリの嗜好情報に対する特徴解析および評価  [Not invited]

  情報処理学会第70回全国大会  2008
• 動的信号を用いたSOMによるネットワークの可視化  [Not invited]

  第7回複雑系マイクロシンポジウム  2008
• 物理モデリングに於ける水環境の構築に関する研究  [Not invited]

  第7回複雑系マイクロシンポジウム  2008
• 話題の特性を考慮した情報伝搬ダイナミクスの解析  [Not invited]

  第7回複雑系マイクロシンポジウム  2008
• コミュニティ構造の視認性を高めるるネットワーク可視化手法に関する一考察  [Not invited]

  情報処理北海道シンポジウム2008講演論文集  2008
• 複雑ネットワークのパーコレーションによる同期現象, 情報処理北海道シンポジウム2008講演論文集  [Not invited]

  情報処理北海道シンポジウム2008講演論文集  2008
• アニボットのコピー機能によるモデリングと協調行動の獲得  [Not invited]

  2008年度精密工学会北海道支部学術講演会講演論文集  2008
• トポロジーをもつエージェントによる複雑ネットワークの可視化  [Not invited]

  第9回計測自動制御学会システムインテグレーション部門講演会  2008
• 自律的行動獲得によるAnimated Robotの開発  [Not invited]

  第9回計測自動制御学会システムインテグレーション部門講演会  2008
• アニボットのコピー機能による群協調行動の獲得  [Not invited]

  第9回計測自動制御学会システムインテグレーション部門講演会  2008
• 複雑ネットワークにおけるパーコレーション伝播を考慮した振動子の同期現象  [Not invited]

  第9回計測自動制御学会システムインテグレーション部門講演会  2008
• Basic study of Hot Topics Detection on Social Bookmark Services  [Not invited]

  大和田純, 鈴木育男, 山本雅人, 古川正志

  人工知能学会知識ベースシステム研究会資料  2007/12
• A Relationship between the synchronization and the vertex degree on the coupled oscillator system on complex networks  [Not invited]

  村田賢太, 鈴木育男, 山本雅人, 古川正志

  人工知能学会知識ベースシステム研究会資料  2007/12
• The Character Extraction of Tag Co-occurring Networks on Nicovideo  [Not invited]

  伊藤聖修, 鈴木育男, 山本雅人, 古川正志

  人工知能学会知識ベースシステム研究会資料  2007/12
• Capacity Analysis of DNA Memory based on Mathematical Model  [Not invited]

  Yamamoto Masahito, Kashiwamura Satoshi, Ohuchi Azuma

  IPSJ SIG Notes  2007/09 

  We have developed a DNA Memory with over 10 million (16.8M) addresses. The data embedded into a unique address was correctly extracted through addressing processes based on the nested PCR. The limitation of the scaling-up of the proposed DNA memory is discussed by using a theoretical model based on combinatorial optimization with some experimental restrictions. The results reveal that the size of the address space of the DNA memory presented here may be close to the theoretical limit. The high-capacity DNA memory can be also used in cryptography (steganography) or DNA ink.
• ブログを用いたWebサービス型情報共有・推薦システム「HARMO」の開発  [Not invited]

  山下晃弘, 川村秀憲, 山本雅人, 大内東

  情報科学技術フォーラム  2007/08
• 観光経路作成支援における代替観光経路の提案手法  [Not invited]

  丸山加奈, 山本雅人, 大内東

  情報科学技術フォーラム  2007/08
• LF-006 Quantitative Analysis of Cellular Automata with Input/Output Data  [Not invited]

  Takahashi Haruki, Kawamura Hidenori, Yamamoto Masato, Ohuchi Azuma

  情報科学技術レターズ  2007/08
• A-002 A Study on Alternative Tour Plans in Tour Planning Support System  [Not invited]

  Maruyama Kana, Yamamoto Masahito, Ohuchi Azuma

  情報科学技術フォーラム一般講演論文集  2007/08
• F-007 HARMO : Information Sharing and Recommender System with Weblog based on Web Service  [Not invited]

  Yamashita Akihiro, Kawamura Hidenori, Yamamoto Masahito, Ohuchi Azuma

  情報科学技術フォーラム一般講演論文集  2007/08
• 2A2-A08 Development of Line Following Control System for Indoor Blimp Robot  [Not invited]

  NISHIOKA Ryouta, KAWAMURA Hidenori, YAMAMOTO Masahito, TAKAYA Toshihiko, OHUCHI Azuma

  ロボティクス・メカトロニクス講演会講演概要集  2007/05 

  We report on line following control for indoor blimp robot. Indoor blimp robot can be moved to the altitude and the place with differences in the building. There are applications of the guide and the round in the building by using those features. It is generable target trajectory to put the one that becomes a landmark on the moved place. Therefore, we put the line as a landmark. The line is showing flat information in the target trajectory, and information of height can be obtained according to the width of the line. In this paper, we report the extraction method of the line in the camera image, and line following control.
• 2A2-B02 Control for Indoor Blimp Robot Based on Flight Plan with Constraint Time  [Not invited]

  KASAWAKI Hiroto, KAWAMURA Hidenori, YAMAMOTO Masahito, TAKAYA Toshihiko, OHUCHI Azuma

  ロボティクス・メカトロニクス講演会講演概要集  2007/05 

  This paper describes that an indoor balloon control system based on flight plan with constraint time. Indoor balloon robots have the features of using buoyancy to move three dimensional movements, moving less energy. Furthermore, balloon robot has high safety to crash, and can use it safely also in indoor space. For these features, indoor balloon robots have enormous potential for applications such as an entertainment flight, automatic surveillance. Our goal is synchronized flying. However, they have difficulties to control because of nonlinear thrust and air resistance. We develop of the control system based on flight plan with constraint time that balloon robot might be able to move freely 3D space with constraint time. The experimental results show that the control system based on flight plan with constraint time is effective and might be applied to the synchronized flying for indoor balloon robot.
• Development of Line Following Control System for Indoor Blimp Robot  [Not invited]

  西岡良太, 川村秀憲, 山本雅人, 高谷敏彦, 大内東

  日本機械学会ロボティクス・メカトロニクス講演会講演論文集(CD-ROM)  2007/05
• Control for Indoor Blimp Robot Based on Flight Plan with Constraint Time  [Not invited]

  笠脇裕人, 川村秀憲, 山本雅人, 高谷敏彦, 大内東

  日本機械学会ロボティクス・メカトロニクス講演会講演論文集(CD-ROM)  2007/05
• Development of Restaurant Information Website with Weblog and Recommender System  [Not invited]

  Yamashita Akihiro, Kawamura Hidenori, Yamamoto Masahito, Ohuchi Azuma

  IPSJ SIG Notes. ICS  2007/03 

  As the number of individual tourists increases, Web browsing is becoming one of the methods to gather tourism information such as restaurants and accommodations. However, it is difficult to search for necessary and valuable tourism information. Meanwhile, the services which are called Web2.0 dramatically increase. These features are information collection from users, information sharing and user adaptive recommendation. This information distribution form will extend increasingly, and the influence on the tourism industry will be significant. This research constructs user-centred tourism information system with objective information and subjective ratings. Then it innovates tourism website using Web2.0 technologies. This study proposes to use the Weblog interface for the system to collect much tourism information. Further, to recommend some products for users, it utilizes Collaborative Filtering Algorithm to resolve which products should be suggested. This paper introduces an application to a restaurant information website.
• Development of Restaurant Information Website with Weblog and Recommender System  [Not invited]

  Yamashita Akihiro, Kawamura Hidenori, Yamamoto Masahito, Ohuchi Azuma

  IEICE technical report. Artificial intelligence and knowledge-based processing  2007/03 

  As the number of individual tourists increases, Web browsing is becoming one of the methods to gather tourism information such as restaurants and accommodations. However, it is difficult to search for necessary and valuable tourism information. Meanwhile, the services which are called Web2.0 dramatically increase. These features are information collection from users, information sharing and user adaptive recommendation. This information distribution form will extend increasingly, and the influence on the tourism industry will be significant. This research constructs user-centred tourism information system with objective information and subjective ratings. Then it innovates tourism website using Web2.0 technologies. This study proposes to use the Weblog interface for the system to collect much tourism information. Further, to recommend some products for users, it utilizes Collaborative Filtering Algorithm to resolve which products should be suggested. This paper introduces an application to a restaurant information website.
• 物理環境モデリングに関するツール開発 −第１報 弾性体モデリングツールの開発−  [Not invited]

  2007年度精密工学会北海道支部学術講演会  2007
• 物理環境モデリングに関するツール開発 −第２報 剛性体モデリングツールの開発−  [Not invited]

  2007年度精密工学会北海道支部学術講演会  2007
• セルの入出力観測に基づくセルオートマトンの定量的分析  [Not invited]

  第6回情報技術フォーラム(FIT2007)，情報科学技術レターズ  2007
• SOMによる二部グラフのコミュニティ分割と視覚化による解析  [Not invited]

  情報処理北海道シンポジウム2007  2007
• SOMによるSBS大規模タグ情報の有意可視化  [Not invited]

  情報処理北海道シンポジウム2007  2007
• 物理モデリングによるAnibotの研究  [Not invited]

  第8回SICEシステムインテグレーション部門講演会  2007
• Self-Assessment System for Hotel Classification  [Not invited]

  大柳幸彦, 川村秀憲, 山本雅人, 大内東, 柳森利宣, 孫田茂樹

  ファジィシステムシンポジウム講演論文集(CD-ROM)  2006/09
• Study of Tourist Activity Survey using Information Technology  [Not invited]

  長尾光悦, 川村秀憲, 山本雅人, 大内東

  ファジィシステムシンポジウム講演論文集(CD-ROM)  2006/09
• Learning Docking Control of Autonomous Recharging for Indoor Blimp Robot  [Not invited]

  皆川良弘, 川村秀憲, 山本雅人, 高谷敏彦, 大内東

  ファジィシステムシンポジウム講演論文集(CD-ROM)  2006/09
• Round system of autonomous indoor blimp robot: 2)  [Not invited]

  高谷敏彦, 川村秀憲, 皆川良弘, 山本雅人, 大内東

  ファジィシステムシンポジウム講演論文集(CD-ROM)  2006/09
• Proposal of Website Classification Technique by Keyword Analysis and Application to Real Data  [Not invited]

  本田 崇智, 山本 雅人, 大内 東

  ファジィシステムシンポジウム講演論文集  2006/09
• Development of Support System for Tour Planning and its Application to Hokkaido University Campus  [Not invited]

  丸山 加奈, 山本 雅人, 大内 東

  ファジィシステムシンポジウム講演論文集  2006/09
• DNAを用いたタイル構造における接着結合部の塩基配列設計  [Not invited]

  飯村直記, 山本雅人, 田中文昭, 亀田充史, 大内東

  情報科学技術フォーラム  2006/08
• カテゴリーに特徴的な名詞の抽出と利用によるWebサイトの自動分類  [Not invited]

  本田崇智, 山本雅人, 大内東

  情報科学技術フォーラム  2006/08
• 充電地点へのドッキングを行なう室内バルーンロボットの学習制御  [Not invited]

  皆川良弘, 川村秀憲, 山本雅人, 高谷敏彦, 大内東

  情報科学技術フォーラム  2006/08
• 複数事例を用いたHTML文書からXML文書へのラッピング  [Not invited]

  森康真, 山本雅人, 大内東

  情報科学技術フォーラム  2006/08
• D_034 Automatic Website Classification by Extracting and Using Characteristic Nouns of Category  [Not invited]

  Honda Takatomo, Yamamoto Masahito, Ohuchi Azuma

  情報科学技術フォーラム一般講演論文集  2006/08
• D_037 Wrapping from HTML to XML Using Two or More Cases  [Not invited]

  Mori Yasunao, Yamamoto Masahito, Ohuchi Azuma

  情報科学技術フォーラム一般講演論文集  2006/08
• H_019 Sequence Design of Glued connected portion in DNA Tile Structure  [Not invited]

  Iimura Naoki, Yamamoto Masahito, Tanaka Fumiaki, Kameda Atsushi, Ohuchi Azuma

  情報科学技術フォーラム一般講演論文集  2006/08
• J_050 Leaming Control of Indoor Balloon Robot for Docking to Recharging Station  [Not invited]

  Minagawa Yoshihiro, Kawamura Hidenori, Yamamoto Masahito, Takaya Toshihiko, Ohuchi Azuma

  情報科学技術フォーラム一般講演論文集  2006/08
• Construction of DNA Nanostructures based on Self-Assemble  [Not invited]

  Yamamoto Masahito, Ohuchi Azuma

  IPSJ SIG technical reports  2006/06 

  Construction of DNA nanostructures based on self-assemble and synthetic biology are attractive research areas in DNA computing research since Adleman's demonstration of solving combinatorial problems. In this paper, we describe some of researches related to the construction of DNA nanostructures such as DNA tiles and DNA origami. In particular, some practical issues for implementing the algorithmic assemble of DNA tiles are discussed. Also, we present the sequence design method for obtaining stable DNA tiles.
• GPSログデータからの周遊観光行動の推定及び分析  [Not invited]

  長尾光悦, 川村秀憲, 山本雅人, 大内東

  情報処理学会全国大会講演論文集  2006/03
• Docking Control of Autonomous Recharging for Indoor Balloon Robot  [Not invited]

  Minagawa Yoshihiro, Kawamura Hidenori, Yamamoto Masahito, Takaya Toshihiko, Ohuchi Azuma

  IPSJ SIG technical reports  2005/12 

  In this paper, we propose a method of docking control of autonomous recharging for indoor balloon robot. Indoor balloon robot might be applied to entertainment flight in an event hall, such as synchronized flight of multiple balloon robots, interactive balloon robot. It might be necessary for long term flight to achieve entertainment flight. However, indoor balloon robot cannot load heavy battery for long term flight. To achieve long term flight, one approach is autonomous recharging. In the case of low battery remainder, indoor balloon robot moves to charging station for recharging. For autonomous recharging, we designed charging station and docking control for indoor balloon robot.
• DNAタイルによる計算論的ナノテクノロジー  [Not invited]

  山本雅人, 飯村直記, 田中文昭, 亀田充史, 大内東

  日本分子生物学会年会講演要旨集  2005/11
• 自由エネルギーに基づいた塩基配列設計に関する研究  [Not invited]

  田中文昭, 亀田充史, 山本雅人, 大内東

  情報科学技術フォーラム  2005/08
• DNA分子を利用したリレーショナルデータベースの開発  [Not invited]

  北豊, 柏村聡, 亀田充史, 山本雅人, 大内東

  情報科学技術フォーラム  2005/08
• DNAを記憶素子として用いた分子メモリの開発と大容量化に関する検討  [Not invited]

  柏村聡, 山本雅人, 亀田充史, 大内東

  情報科学技術フォーラム  2005/08
• 自由エネルギーを用いたDNAナノ構造のための塩基配列設計  [Not invited]

  飯村直記, 山本雅人, 田中文昭, 亀田充史, 大内東

  情報科学技術フォーラム  2005/08
• A-010 A Development of DNA Relational Database  [Not invited]

  Kita Yutaka, Kashiwamura Satoshi, Kameda Atsushi, Yamamoto Masahito, Ohuchi Azuma

  情報科学技術フォーラム一般講演論文集  2005/08
• H-030 Study of Construction of Molecular Memory Based on DNA and Enlargement of Capacity  [Not invited]

  Kashiwamura Satoshi, Yamamoto Masahito, Kameda Atsushi, Ohuchi Azuma

  情報科学技術フォーラム一般講演論文集  2005/08
• H-031 Sequence Design based on Free Energy for DNA tile structure  [Not invited]

  Iimura Naoki, Yamamoto Masahito, Tanaka Fumiaki, Kameda Atsushi, Ohuchi Azuma

  情報科学技術フォーラム一般講演論文集  2005/08
• H-032 自由エネルギーに基づいた塩基配列設計に関する研究(H分野:生体情報科学)  [Not invited]

  田中 文昭, 亀田 充史, 山本 雅人, 大内 東

  情報科学技術フォーラム一般講演論文集  2005/08
• Feature Analysis and Keyword Extraction for Automatic Classification of Web Site  [Not invited]

  HONDA Takatomo, YAMAMOTO Masahito, KAWAMURA Hidenori, OHUCHI Azuma

  IPSJ SIG Notes. ICS  2005/08 

  A website is considered to be belonging to a certain category such as accommodations, restaurants, facilities and so on, as shown in the directory-typed search engines. Generally, a website includes valuable information such as links to or from other sites, many files with extensions and many text data, in terms of the category classification. In this paper, we investigate whether many websites belonging to a certain category have some common features or not. In particular, we show that some keywords are very important to classify websites to the categories. By using these analyzed keyword information, we present that many websites could be classified to an appropriate category with high precision when three categories (museum, restaurant and accommodations) related to tourism are treated as examples.
• Extraction of Activity Information on Circular Tour from GPS Log  [Not invited]

  NAGAO Mitsuyoshi, KAWAMURA Hidenori, YAMAMOTO Masahito, OHUCHI Azuma

  IPSJ SIG Notes. ICS  2005/08 

  In this paper, we propose an extraction method of activity information on circular tour from GPS log. In this research, we focus on circular tour with rent-a-car. The proposed method extracts basic activity information which includes the information about destinations and movements from GPS log which consist of the position information on circular tour. The analysis for circular tour is performed on the basis of the extracted basic activity information. We confirm the effectiveness of the proposed method through the experiment using GPS log collected from actual tourists on Hokkaido circular tour. In addition, we analyze Hokkaido circular tour and discuss the analysis result.
• Feature Analysis and Keyword Extraction for Automatic Classification of Web Site  [Not invited]

  HONDA Takatomo, YAMAMOTO Masahito, KAWAMURA Hidenori, OHUCHI Azuma

  IEICE technical report. Artificial intelligence and knowledge-based processing  2005/07 

  A website is considered to be belonging to a certain category such as accommodations, restaurants, facilities and so on, as shown in the directory-typed search engines. Generally, a website includes valuable information such as links to or from other sites, many files with extensions and many text data, in terms of the category classification. In this paper, we investigate whether many websites belonging to a certain category have some common features or not. In particular, we show that some keywords are very important to classify websites to the categories. By using these analyzed keyword information, we present that many websites could be classified to an appropriate category with high precision when three categories (museum, restaurant and accommodations) related to tourism are treated as examples.
• Extraction of Activity Information on Circular Tour from GPS Log  [Not invited]

  NAGAO Mitsuyoshi, KAWAMURA Hidenori, YAMAMOTO Masahito, OHUCHI Azuma

  IEICE technical report. Artificial intelligence and knowledge-based processing  2005/07 

  In this paper, we propose an extraction method of activity information on circular tour from GPS log. In this research, we focus on circular tour with rent-a-car. The proposed method extracts basic activity information which includes the information about destinations and movements from GPS log which consist of the position information on circular tour. The analysis for circular tour is performed on the basis of the extracted basic activity information. We confirm the effectiveness of the proposed method through the experiment using GPS log collected from actual tourists on Hokkaido circular tour. In addition, we analyze Hokkaido circular tour and discuss the analysis result.
• Automated Topological Map for Indoor Blimp with Ultrasonic Sensors.  [Not invited]

  皆川良弘, 川村秀憲, 山本雅人, 高谷敏彦, 大内東

  日本機械学会ロボティクス・メカトロニクス講演会講演論文集(CD-ROM)  2005/06
• Flight Control of Indoor Blimp Robot with T-Engine System  [Not invited]

  川村秀憲, 角田久雄, 山本雅人, 高谷敏彦, 大内東

  日本機械学会ロボティクス・メカトロニクス講演会講演論文集(CD-ROM)  2005/06
• 1P1-S-060 Flight Control of Indoor Blimp Robot with T-Engine System(Flying Robot 1,Mega-Integration in Robotics and Mechatronics to Assist Our Daily Lives)  [Not invited]

  Kawamura Hidenori, Kadota Hisao, Yamamoto Masahito, Takaya Toshihiko, Ohuchi Azuma

  ロボティクス・メカトロニクス講演会講演概要集  2005/06
• 2P1-S-059 Automated Topological Map for Indoor Blimp with Ultrasonic Sensors(Flying Robot 4,Mega-Integration in Robotics and Mechatronics to Assist Our Daily Lives)  [Not invited]

  Minagawa Yoshihiro, Kawamura Hidenori, Yamamoto Masahito, Takaya Toshihiko, Ohuchi Azuma

  Proceeding of The 2005 JSME Conference on Robotics and Mechatronics, (ROBOMEC2005), Kobe  2005/06
• 宿泊施設の公式サイト検索エンジン「オフィシャルゲート」の開発について  [Not invited]

  川村秀憲, 本山恵子, 山本雅人, 大内東

  情報処理学会全国大会講演論文集  2005/03
• Development of Indoor Blimp Robot System and Autonomous flight control  [Not invited]

  高谷敏彦, 川村秀憲, 山本雅人, 大内東

  飛行機シンポジウム講演集(CD-ROM)  2005
• 自由エネルギーを用いたDNAナノ構造形成のための塩基配列設計  [Not invited]

  第4回情報科学技術フォーラム (FIT2005)講演論文集, CD-ROM  2005
• 室内バルーンロボットにおける自律充電のドッキング制御  [Not invited]

  2005
• 宿泊施設自己点検評価プロジェクトの活動報告  [Not invited]

  観光情報学会第２回全国大会講演論文集  2005
• DNAタイルによる計算論的ナノテクノロジー<第28回日本分子生物学会年会，シンポジウム「ナノバイオテクノロジー・分析から構築の科学へ」>  [Not invited]

  2005
• Web サイトの自動分類に向けた特徴分析とキーワード抽出に関する研究  [Not invited]

  情報処理学会研究会報告  2005
• 飛行船ロボットプラットホームの開発と自律飛行制御<第４３回飛行機シンポジウム>  [Not invited]

  2005
• Web サイトの自動分類に向けた特徴抽出とキーワード抽出に関する研究,  [Not invited]

  観光情報学会第２回全国大会講演論文集  2005
• DNAタイル構造の安定性評価法  [Not invited]

  情報処理北海道シンポジウム2005講演論文集  2005
• 自律充電に向けた室内バルーンロボットのドッキング制御  [Not invited]

  AFO'05 in Hakodate  2005
• GPSログからの周遊型観光行動情報の抽出  [Not invited]

  情報処理学会研究会報告  2005
• キーワード抽出によるWebサイトの自動分類と特徴分析に関する研究  [Not invited]

  情報処理北海道シンポジウム2005講演論文集  2005
• 室内飛行船ロボットの自律充電システムの開発  [Not invited]

  情報処理北海道シンポジウム2005講演論文集  2005
• 地域の公式サイト検索「オフィシャルゲート」の開発とデータ分析  [Not invited]

  観光情報学会第２回全国大会講演論文集  2005
• GPS ログに基づく観光動態のモデル化  [Not invited]

  観光情報学会第２回全国大会講演論文集  2005
• Development of the Ambiguous Searching System Using the Color Information in the Outdoor Sculpture Database  [Not invited]

  大野貴司, 中津川雅史, 山本雅人, 川村秀憲, 仲野三郎, 橋本信夫, 大内東

  電気学会情報システム研究会資料  2004/06
• Verification on Effectiveness of Customer-driven Reservation Adjustment Mechanism by Multiagent Analysis  [Not invited]

  篠原敏夫, 川村秀憲, 山本雅人, 大内東

  電子情報通信学会技術研究報告  2004/03
• Quantification of Interactive Behavior in Multiagent Systems  [Not invited]

  柳沢紀子, 川村秀憲, 山本雅人, 大内東

  電子情報通信学会技術研究報告  2004/03
• GPS Log Data Mining for Acquisition of Tourism Information  [Not invited]

  NAGAO Mitsuyoshi, KAWAMURA Hidenori, YAMAMOTO Masahito, OHUCHI Azuma

  IPSJ SIG Notes. ICS  2004/03 

  In this paper, we propose a GPS log data mining method for acquisition of tourism information. Recently, the number of tourists which utilize rent-a-car has extremely increased according to shift of tourism type from group tour to personal tour. Therefore, in this research, we perform the extraction of personal behavior information which is effective for tourism information from GPS log data in rent-a-car tour. Currently, the position detection with high accuracy can be performed by using GPS because SA which leads to decrease of accuracy has been removed. However, when GPS is independently used, detection error and impossibility frequently occur under influence of electrolytic dissociation, atmosphere condition, GPS receiver condition and so on. The proposed method is robust against such situations and can extract the accurate personal behavior information from the GPS log data with error. We confirm the effectiveness of proposed method through the experiments using GPS log data collected from tourists in Hokkaido.
• Quantification of Interactive Behavior in Multiagent Systems  [Not invited]

  YANAGISAWA Noriko, KAWAMURA Hidenori, YAMAMOTO Masahito, OHUCHI Azuma

  IPSJ SIG Notes. ICS  2004/03 

  In most presented researches on multi agent systems, the macroscopic system performance is discussed with such specific measures as gain or achievement. These measures are still important, but when we observe the complex system, it is impossible to understand the essentials of its behavior only using these measures. Therefore we propose an analysis method with entropy and mutual information, the essential terms to analyze the complex system related to macroscopic characteristics. Consequently, we verify the validity of quantitative analysis using entropy and mutual information.
• Verification on Effectiveness of Customer-driven Reservation Adjusment Mechanism by Multiagent Analysis  [Not invited]

  SHINOHARA Toshio, KAWAMURA Hidenori, YAMAMOTO Masahito, OHUCHI Azuma

  IPSJ SIG Notes. ICS  2004/03 

  Reservation systems, such as an airline ticket and a concert ticket, are first-come firest-served resource allocation mechanisms. In this paper, we propose a resource allocation adjustment mechanism which performs reservation adjustment by customer driven, and verify effectiveness of the mechanism for various demand structures by the multi-agent simulation.
• Verification on Effectiveness of Customer-driven Reservatioin Adjusment Mechanism by Multiagent Analysis  [Not invited]

  SHINOHARA Toshio, KAWAMURA Hidenori, YAMAMOTO Masahito, OHUCHI Azuma

  IEICE technical report. Artificial intelligence and knowledge-based processing  2004/03 

  Reservation systems, such as an airline ticket and a concert ticket, are first-come firest-served resource allocation mechanisms. In this paper, we propose a resource allocation adjustment mechanism which performs reservation adjustment by customer driven, and verify effectiveness of the mechanism for various demand structures by the multi-agent simulation.
• Quantification of Interactive Behavior in Multiagent Systems  [Not invited]

  YANAGISAWA Noriko, KAWAMURA Hidenori, YAMAMOTO Masahito, OHUCHI Azuma

  IEICE technical report. Artificial intelligence and knowledge-based processing  2004/03 

  In most presented researches on multi agent systems, the macroscopic system performance is discussed with such specific measures as gain or achievement. These measures are still important, but when we observe the complex system, it is impossible to understand the essentials of its behavior only using these measures. Therefore we propose an analysis method with entropy and mutual information, the essential terms to analyze the complex system related to macroscopic characteristics. Consequently, we verify the validity of quantitative analysis using entropy and mutual information.
• GPS Log Data Mining for Acquisition of Tourism Information  [Not invited]

  NAGAO MItsuyoshi, KAWAMURA Hidenori, YAMAMOTO Masahito, OHUCHI Azuma

  IEICE technical report. Artificial intelligence and knowledge-based processing  2004/03 

  In this paper, we propose a GPS log data mining method for acquisition of tourism information. Recently, the number of tourists which utilize rent-a-car has extremely increased according to shift of tourism type from group tour to personal tour. Therefore, in this research, we perform the extraction of personal behavior information which is effective for tourism information from GPS log data in rent-a-car tour. Currently, the position detection with high accuracy can be performed by using GPS because SA which leads to decrease of accuracy has been removed. However, when GPS is independently used, detection error and impossibility frequently occur under influence of electrolytic dissociation, atmosphere condition, GPS receiver condition and so on. The proposed method is robust against such situations and can extract the accurate personal behavior information from the GPS log data with error. We confirm the effectiveness of proposed method through the experiments using GPS log data collected from tourists in Hokkaido.
• マルチエージェントが構成するネットワークと相互作用の分析  [Not invited]

  合同エージェントワークショップ＆シンポジウム2004講演論文集  2004
• カメラ画像を用いた自律飛行船制御のための位置取得システムの構築  [Not invited]

  情報処理北海道シンポジウム2004講演論文集  2004
• ホバリング制御に基づくエンターテインメントバルーンロボットの開発<エンタテインメントコンピューティング2004>  [Not invited]

  2004
• DNAヘアピンを利用したRAMによるアクエアスコンピューティング  [Not invited]

  情報処理北海道シンポジウム2004講演論文集  2004
• サッカーボール型DNA分子の設計と基礎実験  [Not invited]

  情報処理北海道シンポジウム2004講演論文集  2004
• An Automatic Collection System for Official Accommodation Websites  [Not invited]

  TAKAGI Kohichiro, YAMAMOTO Masahito, NAKATSUGAWA Masashi, KAWAMURA Hidenori, OHUCHI Azuma

  IPSJ SIG Notes. ICS  2003/09 

  It is becoming increasingly difficult to find desired information from the World Wide Web (WWW) due to its rapid growth, and especially, to find web pages belonging to a certain category. For example, it is difficult for tourists to search for official accommodation websites such as hotels and pensions in the area that they will visit. Existing search engines are not suitable for this purpose because these search engines utilize some keywords to extract the information, and accommodation websites do not always contain the most common words. In this paper, we develop an automatic collection system that can extract some accommodation websites in a certain region and detect whether a website is an official one. Our main idea is the utilization of telephone numbers and link-structure analysis. We have applied our proposed system to Hokkaido local accommodation websites in some areas, although the proposed system can also be applied to other objects by changing the extraction rule. This is the first step of our trial to make a dynamic Internet Directory.
• An Automatic Collection System for Official Accommodation Websites  [Not invited]

  TAKAGI Kohichiro, YAMAMOTO Masahito, NAKATSUGAWA Masashi, KAWAMURA Hidenori, OHUCHI Azuma

  IEICE technical report. Artificial intelligence and knowledge-based processing  2003/09 

  It is becoming increasingly difficult to find desired information from the World Wide Web (WWW) due to its rapid growth, and especially, to find web pages belonging to a certain category. For example, it is difficult for tourists to search for official accommodation websites such as hotels and pensions in the area that they will visit. Existing search engines are not suitable for this purpose because these search engines utilize some keywords to extract the information, and accommodation websites do not always contain the most common words. In this paper, we develop an automatic collection system that can extract some accommodation websites in a certain region and detect whether a website is an official one. Our main idea is the utilization of telephone numbers and link-structure analysis. We have applied our proposed system to Hokkaido local accommodation websites in some areas, although the proposed system can also be applied to other objects by changing the extraction rule. This is the first step of our trial to make a dynamic Internet Directory.
• A Study on Cooperation in Collective Behavior Poroblem Based on Tag Based Mechanism.  [Not invited]

  浜田貴広, 川村秀憲, 山本雅人, 大内東

  電子情報通信学会技術研究報告  2003/01
• A Study on Cooperation in Collective Behavior Poroblem Based on Tag Based Mechanism  [Not invited]

  HAMADA Takahiro, KAWAMURA Hidenori, YAMAMOTO Masahito, OHUCHI Azuma

  IPSJ SIG Notes. ICS  2003/01 

  A simple model of tag-mediated decision making for players playing the one-shot prisoner's dilemma game is described. In our simulation, tags, which are visible from each other, and there is no relation between the player's tag and the one's strategy firstly. The player's decision making is based on the partner's tag, and the player's strategy is evolved within the same tag members. We examine the effect of the difference in the rate, which is the number of the members having the same tag, and consider which is more advantageous between the minority group and majority one.
• A Study on Cooperation in Collective Behavior Poroblem Based on Tag Based Mechanism  [Not invited]

  HAMADA Takahiro, KAWAMURA Hidenori, YAMAMOTO Masahito, OHUCHI Azuma

  IEICE technical report. Artificial intelligence and knowledge-based processing  2003/01 

  A simple model of tag-mediated decision making for players playing the one-shot prisoner's dilemma game is described. In our simulation, tags, which are visible from each other, and there is no relation between the player's tag and the one's strategy firstly. The player's decision making is based on the partner's tag, and the player's strategy is evolved within the same tag members. We examine the effect of the difference in the rate, which is the number of the members having the same tag, and consider which is more advantageous between the minority group and majority one.
• Learning control of autonomous airship robot for pursuit task  [Not invited]

  西村絢子, 川村秀憲, 山本雅人, 大内東

  情報処理学会シンポジウム論文集  2003/01
• Design and Modeling of an Indoor Balloon-type Robot  [Not invited]

  柳沢紀子, 川村秀憲, 山本雅人, 大内東

  情報処理学会シンポジウム論文集  2003/01
• "ヘアピン構造DNAを利用したRAMの構築"  [Not invited]

  情報処理北海道シンポジウム2003講演論文集  2003
• "カメラ搭載型自律飛行船システムの開発と位置制御タスクの遂行"  [Not invited]

  情報処理北海道シンポジウム2003講演論文集  2003
• "時間制約付き観光プラン作成問題のモデル化"  [Not invited]

  情報処理北海道シンポジウム2003講演論文集  2003
• "Trading Agent Competitionの複数財入札におけるGAエージェントの作成"  [Not invited]

  情報処理北海道シンポジウム2003講演論文集  2003
• A Study on Behavioral Structure of Artificial Market based on Adaptive Hyper-game.  [Not invited]

  浜田貴宏, 川村秀憲, 山本雅人, 大内東

  電子情報通信学会技術研究報告  2002/01
• A Study on Behavioral Structure of Artificial Market based on Adaptive Hyper-game  [Not invited]

  HAMADA Takahiro, KAWAMURA Hidenori, YAMAMOTO Masahito, OHUCHI Azuma

  IPSJ SIG Notes. ICS  2002/01 

  In generally, we often play a game against the entity, which we do not know what really is. In the case, the result of the game is often dependent on the scale of participant and the other players' strategies, but we may not get their information. And all we can know is the result. We are to investigate the player's behavior and the behavior as a whole of players in such the environment. So, we make a simple model to study the behavior of players when against the entity whose decision-making system is not clearly known to them.
• A Study on Behavioral Structure of Artificial Market based on Adaptive Hyper-game  [Not invited]

  HAMADA Takahiro, KAWAMURA Hidenori, YAMAMOTO Masahito, OHUCHI Azuma

  IEICE technical report. Artificial intelligence and knowledge-based processing  2002/01 

  In generally, we often play a game against the entity, which we do not know what really is. In the case, the result of the game is often dependent on the scale of participant and the other players' strategies, but we may not get their information. And all we can know is the result. We are to investigate the player's behavior and the behavior as a whole of players in such the environment. So, we make a simple model to study the behavior of players when against the entity Whose decision-making system is not clearly known to them.
• 「ロボカップにおけるサッカーエージェントの行動パラメータ進化」  [Not invited]

  情報処理北海道シンポジウム2002講演論文集  2002
• 都道府県郡市医師会情報化実態調査と情報化指標の構築  [Not invited]

  大内東, 三田村保, 栗原正仁, 山本雅人, 宮腰昭男, 中川俊男, 長沢邦雄

  医療情報学連合大会論文集  2001/11
• 人工市場研究の為のX‐Economyシステムの開発と実装  [Not invited]

  川村秀憲, 山本雅人, 大内東, 車谷浩一

  日本オペレーションズ・リサーチ学会春季研究発表会アブストラクト集  2001/05
• 人工市場研究の為のX-Economyシステムの開発と実装(情報・経済)  [Not invited]

  川村 秀憲, 山本 雅人, 大内 東, 車谷 浩一

  日本オペレーションズ・リサーチ学会春季研究発表会アブストラクト集  2001/05
• X-Economy : Design of Virtual Financial Market  [Not invited]

  Kawamura Hidenori, Yamamoto Masahito, Ohuchi Azuma, Kurumatani Kouichi

  IPSJ SIG Notes. ICS  2001/01 

  In this paper, we report the prototype architecture of X-Economy System including X-Economy Server and Clients. X-Economy is the project aiming for foundation of standard problem as artificial social and economic systems. By X-Economy system, it will be possible to construct arbitrary system design for investigation of behavior of social and economic systems between micro scale agents and macro scale.
• X-Economy : Design of Virtual Financial Market  [Not invited]

  Kawamura Hidenori, Yamamoto Masahito, Ohuchi Azuma, Kurumatani Kouichi

  IEICE technical report. Artificial intelligence and knowledge-based processing  2001/01 

  In this paper, we report the prototype architecture of X-Economy System including X-Economy Server and Clients.X-Economy is the project aiming for foundation of standard problem as artificial social and economic systems.By X-Economy system, it will be possible to construct arbitrary system design for investigation of behavior of social and economic systems between micro scale agents and macro scale.
• 「DNAコンピューティングのための配列設計支援システム」  [Not invited]

  『情報処理北海道シンポジウム2001講演論文集』  2001
• 「対戦型ゲームにおけるプレイヤーの共進化と戦略評価」  [Not invited]

  『情報処理北海道シンポジウム2001講演論文集』  2001
• 「DNAコンピューティングにおける塩基配列設計支援システムの構築」  [Not invited]

  『第40回計測自動制御学会学術講演会予稿集』，CD-ROM  2001
• 「DNAコンピューティングにおけるPCR至適化に関する研究」  [Not invited]

  『情報処理北海道シンポジウム2001講演論文集』  2001
• 「濃度制御DNAコンピューティングによる最短経路探索」  [Not invited]

  『第40回計測自動制御学会学術講演会予稿集』，CD-ROM  2001
• 「DNAコンピューティングのPCR操作における実験計画法の適用」  [Not invited]

  『第40回計測自動制御学会学術講演会予稿集』，CD-ROM  2001
• Construction of Infectious Disease Surveillance Network for National Level : About Database of Infectious Disease Incidence  [Not invited]

  TANAKA Suguru, KAWAMURA Hidenori, YAMAMOTO Masahito, OHUCHI Azuma

  医療情報学連合大会論文集  2000/11
• Classification System for Care Insurance  [Not invited]

  KAWAI Takashi, KAWAMURA Hidenori, YAMAMOTO Masahito, OHUCHI Azuma

  医療情報学連合大会論文集  2000/11
• 眼鏡の有無識別処理の導入による個人認証システムの効率化  [Not invited]

  長尾光悦, 山本雅人, 大内東

  品質工学研究発表大会論文集  2000/06
• A Study on Effected Behavior of Micro Airship Based on Reinforcement Learning.  [Not invited]

  本山恵子, 鈴木恵二, 山本雅人, 大内東

  日本機械学会ロボティクス・メカトロニクス講演会講演論文集  2000/05
• Collective Behavior of Agents with multi-objective evaluation function  [Not invited]

  SUZUKI Keiji, YAMASHITA Tomohisa, YAMAMOTO Masahito, OHUCHI Azuma

  自律分散システム・シンポジウム資料 = SICE Symposium on Decentralized Autonomous Systems  2000/01
• Evolutionary Acquisition of Pheromone Style Communication on Ants War  [Not invited]

  KAWAMURA Hidenori, YAMAMOTO Masahito, SUZUKI Keiji, OHUCHI Azuma

  自律分散システム・シンポジウム資料 = SICE Symposium on Decentralized Autonomous Systems  2000/01
• Implementation of Robust Face Identification System against Environment Fluctuation  [Not invited]

  NAGAO Mitsuyoshi, YAMAMOTO Masahito, SUZUKI Keiji, OHUCHI Azuma

  自律分散システム・シンポジウム資料 = SICE Symposium on Decentralized Autonomous Systems  2000/01
• Airship Control to Goal Position Based on Reinforcement Learning  [Not invited]

  MOTOYAMA Keiko, SUZUKI Keiji, YAMAMOTO Masahito, OHUCHI Azuma

  自律分散システム・シンポジウム資料 = SICE Symposium on Decentralized Autonomous Systems  2000/01
• 2A1-30-033 小型飛行船の強化学習制御における行動出力に関する考察  [Not invited]

  本山 恵子, 鈴木 恵二, 山本 雅人, 大内 東

  ロボティクス・メカトロニクス講演会講演概要集  2000 

  実空間を移動する小型飛行船に強化学習を適用する場合は, 連続空間の取り扱い等の実ロボットへの適用による問題の他に, 慣性, 空気抵抗, また気温変化や気流等環境の変動の影響を大きく受けるという飛行船特有の問題を考慮しなくてはならない。本研究では, このような問題を考慮した強化学習法を提案し, 外部カメラからの観測を用いた実ロボットに対し飛行制御実験を行なう。
• 感染症発生動向予測に関する基礎研究  [Not invited]

  田中卓, 山本雅人, 鈴木恵二, 大内東

  医療情報学連合大会論文集  1999/11
• 自由回答文解析機能を付加した医療分野向けアンケートシステムの構築  [Not invited]

  田中宏明, 山本雅人, 鈴木恵二, 大内東

  医療情報学連合大会論文集  1999/11
• Network based Multi-agents system for solving distributed problem.  [Not invited]

  土田安紘, 鈴木恵二, 山本雅人, 大内東

  インテリジェント・システム・シンポジウム講演論文集  1999/10
• Consideration of Recognition ability and Action-selection in Soccer Agents.  [Not invited]

  平本雅俊, 鈴木恵二, 山本雅人, 大内東

  インテリジェント・システム・シンポジウム講演論文集  1999/10
• Evolutionary State Space Configuration for RL Applied to Airship Control.  [Not invited]

  本山恵子, 鈴木恵二, 山本雅人, 大内東

  インテリジェント・システム・シンポジウム講演論文集  1999/10
• Creating Cooperative Pass Play with Soccer Simulation Agent.  [Not invited]

  秋山直之, 鈴木恵二, 山本雅人, 大内東

  情報処理学会シンポジウム論文集  1999/10
• 蛋白質配列における繰り返し抽出システム  [Not invited]

  桜田隆宏, 山本雅人, 鈴木恵二, 大内東

  日本生物物理学会年会講演予稿集  1999/09
• Detecting system of repeating regions in a protein sequence  [Not invited]

  Sakurada T, Yamamoto M, Suzuki K, Ohuchi A

  Biophysics  1999/09
• A Study of Facial Expression Recognition based on MTS.  [Not invited]

  長尾光悦, 山本雅人, 鈴木恵二, 大内東

  品質工学研究発表大会論文集  1999/06
• Prediction of Infectious Disease Surveillance using MTS method.  [Not invited]

  田中卓, 山本雅人, 鈴木恵二, 大内東

  品質工学研究発表大会論文集  1999/06
• Analysis of MTS.  [Not invited]

  中津川雅史, 山本雅人, 鈴木恵二, 大内東

  品質工学研究発表大会論文集  1999/06
• Toward an agent agreemant with human using a Collaborative Communication Tool  [Not invited]

  IIZUKA Hiroyuki, SAITOH Hajime, YAMAMOTO Masahito, SUZUKI Keiji, OHUCHI Azuma

  自律分散システム・シンポジウム資料 = SICE Symposium on Decentralized Autonomous Systems  1999/01
• 地域産業戦略研究部会報告1  [Not invited]

  大内 東, 山本 雅人

  日本オペレーションズ・リサーチ学会秋季研究発表会アブストラクト集  1998/10
• Optimization Algorithm for Vehicle Routing Problems Based on Autonomous Problem Sharing with Pheromone Communication.  [Not invited]

  川村秀憲, 山本雅人, 鈴木恵二, 大内東

  最適化シンポジウム講演論文集  1998/08
• Design of Soccer-Simulation Agents based on Classifier System.  [Not invited]

  秋山直之, 鈴木恵二, 山本雅人, 大内東

  日本機械学会ロボティクス・メカトロニクス講演会講演論文集  1998/06
• 組合せ問題に対するDNA計算アプローチ(組合せ最適化(1))  [Not invited]

  山本 雅人, 平山 拓央, 大内 東, 柴 肇一, 堤 香織, 棟方 正信, 滝谷 重治

  日本オペレーションズ・リサーチ学会春季研究発表会アブストラクト集  1998/05
• Evaluation Of The Image Retrieval System Using Interactive Evolutionary Computation.  [Not invited]

  長尾光悦, 山本雅人, 鈴木恵二, 大内東

  電気学会産業システム情報化研究会資料  1998/03
• Evaluation Of The Image Retrieval System Using Interactive Evolutionary Computation.  [Not invited]

  長尾光悦, 山本雅人, 鈴木恵二, 大内東

  人工知能学会知識ベースシステム研究会資料  1998/03
• DNA calculation approach against the combination subject.  [Not invited]

  山本雅人, 平山拓央, 大内東, 柴肇一, 堤香織, 棟方正信, 滝谷重治

  日本オペレーションズ・リサーチ学会春季研究発表会アブストラクト集  1998
• A genetic algorithm for optimal sequential partitioning problem  [Not invited]

  ARAKI Hajime, MITAMURA Tamotsu, YAMAMOTO Masahito, SUZUKI Keiji, OHUCHI Azuma, KAJI Taichi

  インテリジェント・システム・シンポジウム講演論文集 = FAN Symposium : fuzzy, artificial intelligence, neural networks and computational intelligence  1997/11
• Multiple alignment of amino acid sequences by simultaneous two-way search  [Not invited]

  OKADA Nobuhito, YAMAMOTO Masahito, SUZUKI Keiji, OHUCHI Azuma

  インテリジェント・システム・シンポジウム講演論文集 = FAN Symposium : fuzzy, artificial intelligence, neural networks and computational intelligence  1997/11
• A Study of The Retrieval Support using Communication Agents  [Not invited]

  NAGAO Mitsuyoshi, YAMAMOTO Masahito, SUZUKI Keiji, OHUCHI Azuma

  インテリジェント・システム・シンポジウム講演論文集 = FAN Symposium : fuzzy, artificial intelligence, neural networks and computational intelligence  1997/11
• A Study on the Distributed Optimization Algorithm Based on Pheromone Information for Vehicle Routing Problems  [Not invited]

  KAWAMURA Hidenori, YAMAMOTO Masahito, SUZUKI Keiji, OHUCHI Azuma

  インテリジェント・システム・シンポジウム講演論文集 = FAN Symposium : fuzzy, artificial intelligence, neural networks and computational intelligence  1997/11
• A Study on the Computatianal Accuracy in DNA Computation  [Not invited]

  YAMAMOTO Masahito, HIRAYAMA Takuo, OHUCHI Azuma, SHIBA Toshikazu, TSUTSUMI Kaori, MUNEKATA Masanobu, TAKIYA Sigeharu

  インテリジェント・システム・シンポジウム講演論文集 = FAN Symposium : fuzzy, artificial intelligence, neural networks and computational intelligence  1997/11
• 1T47 Problems and Possibility of Molecular Computation  [Not invited]

  Tsutsumi K, Tanaka K, Shiba T, Munekata M, Hirayama T, Yamamoto M, Ohuchi A, Takiya S

  Biophysics  1997/09
• 2T03 Multiple alignment of amino acid sequences by simultaneous two-way search  [Not invited]

  Okada N, Ohuchi A, Yamamoto M, Suzuki K, Mitamura T

  Biophysics  1997/09
• 2T05 Search and analysis of copy patterns on Genome Informatics  [Not invited]

  Ohuchi A, Yamamoto M, Suzuki K, Mitamura T

  Biophysics  1997/09
• DNA分子計算の問題点及び可能性に関する検討  [Not invited]

  堤香織, 田中貴美枝, 柴肇一, 棟方正信, 平山拓央, 山本雅人, 大内東, 滝谷重治

  日本生物物理学会年会講演予稿集  1997/09
• 同時双方向探索によるアミノ酸配列の多重アラインメント  [Not invited]

  岡田信人, 大内東, 山本雅人, 鈴木恵二, 三田村保

  日本生物物理学会年会講演予稿集  1997/09
• ゲノム情報処理におけるコピーパターンの抽出と解析  [Not invited]

  大内東, 山本雅人, 鈴木恵二, 三田村保

  日本生物物理学会年会講演予稿集  1997/09
• Development of fundamental aspects of DNA Computation  [Not invited]

  OKADA Nobuhito, YAMAMOTO Masahito, OHUCHI Azuma, SHIBA Toshikazu, MUNEKATA Masanobu, TAKIYA Shigeharu

  全国大会講演論文集  1997/03 

  本稿では, l994年にAdlemanによって提案されたDNA分子計算の追実験を行うことで, DNA分子計算の実現の可能性, 及び, 実際に計算を行う上での問題点に関する検討を行う. またDNAのコーディングの際の配列同士の干渉について検討する.
• An Algorithm for Class Arrangement Problems based on Students' Grade  [Not invited]

  Kamada Makoto, Mitamura Tamotsu, Yamamoto Masahito, Ohuchi Azuma

  全国大会講演論文集  1997/03 

  クラス定員の制約の中で学生の意向を最大限に尊重するようなクラス編成を行なう問題をクラス編成問題という. 本稿はクラス編成問題の定式化をおこない、さらに学生の総合成績を考慮した手法を提案し、その効果を示す.
• A propose of a blanching rule in the Davis-Putnam method  [Not invited]

  YAMAMOTO Masahito, OHUCHI Azuma

  全国大会講演論文集  1997/03 

  命題論理における充足可能性問題はNP-完全問題の一つとして知られており, 人工知能の分野における重要な問題の一つである. SATの解法として, Davis-Putnamの手続きの改良が効率的であることが報告されている。しかしながら, Davis-Putnamの手続きの計算効率は分枝変数選択規則に強く依存することも報告されている. 本稿では,難しい問題とされているランダム 3-SATを用いて, これまで提案されている分枝変数選択規則についての比較実験を行い, ランダム 3-SATに有効であるような分枝変数選択規則の性質について考察する.
• Design and Implementation of Genomic Sequence Information Handling Module  [Not invited]

  TANAKA Takanori, YAMAMOTO Masahito, MITAMURA Tamotsu, OHUCHI Azuma, OHYANAGI Toshio, MATSUSHIMA Norio

  全国大会講演論文集  1997/03 

  本研究では、表現形式の異なる複数の遣伝配列情報データベース(DB)から抽出した情報を共通の形式に変換し格納する為の内部変数領域と、それらのデータの処理を行ない二次的な情報の抽出・生成を支援する為の基本操作関数との集合体であるオブジェクト指向型モジュールを構築する。任意の遣伝情報処理支援ツールを、本モジュール内に定義された操作関数の組合せで比較的容易に構成できる。
• Detection and Correction of Reasoning Error by means of Counter Example Search.  [Not invited]

  三上圭太, 山本雅人, 三田村保, 大内東

  計測自動制御学会北海道支部学術講演会論文集  1997/01
• A Tandem-Repeat search algorithm for Amino Acid Sequences.  [Not invited]

  戸野一博, 北田英俊, 山本雅人, 大内東, 大柳俊夫, 松嶋範男

  計測自動制御学会北海道支部学術講演会論文集  1997/01
• An Algorithm for Class Arrangement Problems based on Students' Preference and Grade.  [Not invited]

  鎌田慎, 三田村保, 山本雅人, 大内東

  計測自動制御学会北海道支部学術講演会論文集  1997/01
• PERT Calculation Supporting System Using Internet.  [Not invited]

  小滝和英, 三田村保, 山本雅人, 大内東

  計測自動制御学会北海道支部学術講演会論文集  1997/01
• Multiple-Alignment of Amino Acid Sequences Using Branch- and -Bound Method.  [Not invited]

  北田英俊, 戸野一博, 山本雅人, 大内東, 大柳俊夫, 松嶋範男

  計測自動制御学会北海道支部学術講演会論文集  1997/01
• A Simulation of Majority Rules based on a Bounded Rationality.  [Not invited]

  西川亨, 山本雅人, 大内東

  計測自動制御学会北海道支部学術講演会論文集  1997/01
• 電位依存性陽イオンチャネルのトリペプチド縦列反復配列の解析  [Not invited]

  田中剛範, 大内東, 山本雅人, 三田村保, 大柳俊夫, 松嶋範男

  日本生物物理学会年会講演予稿集  1996/10
• A Study on the Method for Solving Beta Satisfiability Problems  [Not invited]

  Yamamoto Masahito, Ohyanagi Toshio, Ohuchi Azuma

  全国大会講演論文集  1996/09 

  命題論理において,充足可能性問題は人工知能の分野の基本的な問題の一つである.その解法として,Davis-Putnamの手続きをはじめ,様々な方法が提案されている.一方,充足可能性問題を拡張したβ節充足可能性問題がある.これは,通常の節をβ節に拡張して得られる問題であり,通常の節よりも記述が容易な制約があることが著者らによって示されている.また,β節充足可能性問題に対する解法として,著者らは,IEMBSATと呼ばれる手続き,および,Davis-Putnamの手続きを拡張した手続きを提案している.本論文では,これらの解法について非決定的である分枝変数の選択に関する経験則について検討を行う.
• Arrangement alignment considering tandem repeat.  [Not invited]

  北田英俊, 山本雅人, 三田村保, 大内東, 大柳俊夫, 松嶋範男

  電気関係学会北海道支部連合大会講演論文集  1996
• A consideration on class composition problem using linear programming.  [Not invited]

  鎌田慎, 三田村保, 山本雅人, 大内東

  電気関係学会北海道支部連合大会講演論文集  1996
• Analysis of night sudden illness center allocation problem in the medical association in Sapporo City.  [Not invited]

  黒河徹也, 三田村保, 山本雅人, 大内東

  電気関係学会北海道支部連合大会講演論文集  1996
• Examination of threading method for estimation of space structure of protein.  [Not invited]

  岡田信人, 山本雅人, 三田村保, 大内東

  電気関係学会北海道支部連合大会講演論文集  1996
• Research on tandem repeat analysis of gene information.  [Not invited]

  戸野一博, 山本雅人, 三田村保, 大内東, 大柳俊夫, 松嶋範男

  電気関係学会北海道支部連合大会講演論文集  1996
• Solution to flight scheduling problem by Simulated Annealing method.  [Not invited]

  川村秀憲, 三田村保, 山本雅人, 大内東

  電気関係学会北海道支部連合大会講演論文集  1996
• Modeling of humoral immunity by multi- agent.  [Not invited]

  沢田朋之, 正野啓太, 鈴木恵二, 三田村保, 山本雅人, 大内東

  電気関係学会北海道支部連合大会講演論文集  1996
• Face image retrieval algorithm using genetic algorithm.  [Not invited]

  長尾光悦, 三田村保, 山本雅人, 大内東

  電気関係学会北海道支部連合大会講演論文集  1996
• Solution to optimum series partition problem by genetic algorithm.  [Not invited]

  荒木肇, 三田村保, 山本雅人, 大内東, 加地太一

  電気関係学会北海道支部連合大会講演論文集  1996
• Business scheduling preparation support system using Internet.  [Not invited]

  小滝和英, 三田村保, 山本雅人, 大内東

  電気関係学会北海道支部連合大会講演論文集  1996
• Modeling of humoral immunity system.  [Not invited]

  正野啓太, 沢田朋之, 鈴木恵二, 三田村保, 山本雅人, 大内東

  電気関係学会北海道支部連合大会講演論文集  1996
• Consideration on calculation complexity of .BETA. node satisfiability problem.  [Not invited]

  山本雅人, 大内東

  電気関係学会北海道支部連合大会講演論文集  1996
• Analysis of characteristic arrangement in cation channel protein.  [Not invited]

  田中剛範, 山本雅人, 三田村保, 大内東, 大柳俊夫, 松嶋範男

  電気関係学会北海道支部連合大会講演論文集  1996
• Learning of cooperative action of multi- agent using TD(.LAMBDA.) intensified learning process.  [Not invited]

  桂麻希子, 山本雅人, 三田村保, 鈴木恵二, 大内東

  電気関係学会北海道支部連合大会講演論文集  1996
• β節充足可能性問題に対するDavis‐Putnamの手続きの拡張 (文部省統計数理研究所S)  [Not invited]

  山本雅人, 大柳俊夫, 大内東

  統計数理研究所共同研究リポート  1995/09
• Generalization of Davis-Putnam Procedure for a set of β clauses  [Not invited]

  Yamamoto Masahito, Ohyanagi Toshio, Ohuchi Azuma

  全国大会講演論文集  1995/03 

  節集合の充足可能性を判定するための方法として,Davis-Putnamの手続きがある.また,著者らはIEMSATと呼ばれる方法を提案し,Davis-Putnamの手続きとの密接な関係を明らかにしている.IEM-SATは0-1計画問題を解く一般的な方法である陰的列挙法に基づいたアルゴリズムである.一方,節を一般化したβ節といわれる節がある.β節とはその節中のβ個のリテラルが真であるとき,また,そのときに限り真となる節であり,β=1のとき通常の節と同じものになる.著者らは,既にβ節を用いることによって簡単に表現が可能な制約が存在することを示し,β節からなるβ節集合の充足可能性問題を解く方法としてIEMBSATを提案している.本稿では,IEMSATとDavis-Putnamの手続きとの密接な関係から,Davis-Putnamの手続きをβ節を扱う立場から見直しを行い,β節集合に対して適用可能となるような拡張を行う.また,β節の有効性について,最近注目されているGSATなどの局所探索法との比較実験などを通して検討する.
• A Procedure for Satisfiability Problems Based on the Partial Instantiation Technique  [Not invited]

  Yamamoto Masahito, Ohyamagi Toshio, Ohuchi Azuma

  The Transactions of the Institute of Electronics, Information and Communication Engineers. A  1994/11 

  第1階述語論理式に関数記号が現れない場合には,その論理式の充足可能性を判定する手続きが存在する.そのような手続きとして,Robinsonの導出原理に基づく方法,ならびにJeroslowの部分例示に基づく方法などがある.本論文では,関数記号が現れない論理式が節形式で与えられた場合に適用可能な部分例示に基づく充足可能性判定手続きを提案する.この手続きは,Jeroslowの方法と同様に部分例示に基づくものであるが,扱う論理式が節形式であることを利用して,(1)命題論理の充足可能性問題を解く際にDavis-Putnamの方法を利用する,(2)論理式の拡大を節単位で行うことによって扱う論理式の急速な増大を抑える,(3)単一化を行う回数を減らす,ことなどを指向したものである.更に,Jeroslowの方法,導出原理に基づく方法との比較実験を行い,提案手法の有効性を示す.
• ℬ SAT Algorithm based on Implicit Enumeration Method  [Not invited]

  Ohyanagi Toshio, Yamamoto Masahito, Ohuchi Azuma

  全国大会講演論文集  1994/03 

  命題論理の充足可能性問題(SAT)は, 情報処理の分野における基本的な問題の一つで, 現在まで多くの研究が行われている. 一方, SATの各節に量的な条件を加え, SATを一般化した一般化SAT問題(ℬ SATと呼ぶ)の研究が最近Hookerによって行われている. ℬ SATは, SATの各節で真となるリテラルが少なくとも1つであることを, 少なくともℬ個のリテラルが真となるような問題に一般化したものである. 本稿では, ℬ SATとその0-1整数計画問題への定式化, ならびにSATに対して著者らが提案した陰的列挙法に基づくアルゴリズム(IEMBSAT)をℬ SAT向きに見直したアルゴリズム(IEMBSAT)を提案する. また, ℬ SATをそれと等価なSATへ変換するアルゴリズムを示す.
• Empirical Evaluation of IEMSAT Algorithm  [Not invited]

  YAMAMOTO Masahito, OHYANAGI Toshio, OHUCHI Azuma

  全国大会講演論文集  1994/03 

  命題論理式の充足可能性問題(SAT)は, 情報処理の分野における基本的な問題の一つである. 著者らは, SATに対する解法としてIEMSATを提案している. IEMSATは, 0-1整数計画問題を解くための陰的列挙法に基づいたアルゴリズムである. さらに, 著者らはIEMSATとDavis-Putnamの方法との密接な関係も明らかにしている. 本稿では, IEMSATを様々な問題に適用することでその特徴および有効性を明らかにする.
• 部分例示手法を用いた定理自動証明手続き  [Not invited]

  山本雅人, 大柳俊夫, 大内東

  電気関係学会北海道支部連合大会講演論文集  1994
• A Procedure for Solving Satisfiability Problem Based on the Partial Instantiation Technique in the First-Order Logic  [Not invited]

  山本 雅人, 大柳 俊夫, 大内 東

  Bulletin of the Faculty of Engineering,Hokkaido University  1993/07
• On Relation between IE_SAT and DP  [Not invited]

  OHYANAGI Toshio, YAMAMOTO Masahito, OHUCHI Azuma

  全国大会講演論文集  1993/03 

  命題論理の充足可能性問題(SAT)は、情報処理の分野における基本的な問題の一つで、現在まで多くの研究が行われている。最近になって若者らは、0-1整数計画法の解法の一つである、陰的列挙法に基づくSATアルゴリズムを提案している。その方法は、SATを0-1整数計画問題として定式化した場合の特徴を利用して、陰的列挙法をSAT向きに見直したものであり、計算機実験の結果、良好な結果を得ている。本稿では、陰的列挙法に基づくSATアルゴリズムとSATに対する古典的な方法であるDavis-Putnamの方法を比較検討し、両者の関係を明らかにする。そしてその結果に基づき、陰的列挙法に基づくSATアルゴリズムを改良した方法を提案し、その有効性を計算機実験により示す。
• 部分例示手法に基づいた充足可能性判定手続き  [Not invited]

  山本雅人, 大柳俊夫, 大内東

  電気関係学会北海道支部連合大会講演論文集  1993
• 一般化SATに対する陰的列挙法の適用  [Not invited]

  大柳俊夫, 山本雅人, 大内東

  電気関係学会北海道支部連合大会講演論文集  1993
• On Quantitative Approach and Symbolic Approach for SAT  [Not invited]

  Ohyanagi Toshio, Yamamoto Masahito, Kurihara Masahito, Ohuchi Azuma

  全国大会講演論文集  1992/09 

  命題論理の充足可能問題(SAT)は,情報処理の分野における基本的な問題の一つで,現在まで多くの研究が行われている.それらの研究は,Robinsonの導出原理に基づく記号的アプローチと,OR技法の一つである0-1整数計画法に基づく定量的アプローチに大別できるこれまでの記号的アプローチと定量的アプローチの関係に関する研究は,Dzvis-Putnam(DP)の方法と0-1整数計画法の対応,導出節と0-1整数計画法のカットの密接な関係,などの倫理的な議論と,計算機上の数値実験として,DPと分枝限定法および切除平面法との比較など行なわれている.しかし,記号的アプローチの中で最も有効と考えられるホーン緩和戦略と整数計画法の比較や,整数計画法のアルゴリズムのSAT向きの見直しなどはほとんど行われていない.最近著者らは,定量的アプローチの1つとして0-1整数計画問題に対する陰的列挙法をSAT向きに改訂した改訂陰的列挙法を提案している.本稿では,著者らが考案した改訂陰的列挙法の概略とそのインプリメンテーション方法について述べる.そして,改訂陰的列挙法とホーン緩和戦略の比較実験をランダム3-SATを用いて行った結果について報告する.
• A Quantitative Method for Logical Inference : A Framework and Its Applicability  [Not invited]

  Ohuchi Azuma, Ohyanagi Toshio, Yamamoto Masahito

  全国大会講演論文集  1992/02 

  論理推論の算法として導出原理に基づく記号的算法が,従来から広く使われている.これに対して,古典的命題論理の枠組みでは,数理計画法(MP)等を利用する定量的な方法が提案されている.本稿では,これまで行われている定量的方法に関する研究成果をまとめ,定量的方法の第一階述語論理や非古典論理に対する適用に関する今後の研究方向を示す.
• Transformation of SAT into Zero-one Integer Programming Problem  [Not invited]

  Ohyanagi Toshio, Yamamoto Masahito, Ohuchi Azuma

  全国大会講演論文集  1992/02 

  命題論理や第一階述語論理の充足可能性問題(SAT)は,情報科学の基本的な問題の一つであり,現在まで多くの研究が行われている.それらの研究は,Robinsonの導出原理に基づく方法とOR技法の一つである0-1整数計画法(0-1IP)を適用する方法に大別できる.これら2つのアプローチに共通する前提は,一般にSATが節形式で与えられることである.本論文では,命題論理のSATを節形式に変換せずに,直接0-1IP問題に変換するアルゴリズムを示す.そして,SATの充足可能性と0-1IP問題の整数制約を除き連続緩和した問題(LR問題)の解の間の関係を明らかにする.さらに,節形式に対するDavis-PutnamのアルゴリズムとLR問題を解く線形計画法の関係を示す.
• Extension of Jeroslow's method for satisfiability problem  [Not invited]

  Yamamoto Masahito, Ohyanagi Toshio, Ohuchi Azuma

  全国大会講演論文集  1992/02 

  第一階述語論理における充足可能性問題は,定理の自動証明などにおける基本的な問題の一つである.この充足可能性問題を解く手法として,Robinsonの導出原理に基づくものが数多く提案されている.これに対してJeroslowは,第一階述語論理の充足可能性問題を命題論理の充足可能性問題を利用して解く新しい手法を提案した.その手法は,関数記号を含まない場合にしか適用できないという欠点を持っている.本稿では,導出原理の考え方を取り入れ,この手法を関数記号を含む場合へ拡張する.その際,扱う論理式を節形式に限定するが,このことで一般性が失なわれることはない.また,この手法を用いた推論システム実現における問題点などについても述べる.