XIAO LING (シヨウ リン)

情報科学研究院 情報理工学部門 数理科学分野准教授

研究者基本情報

■ 学位
  • 博士(工学), 華中科技大学, 2020年12月
  • 学士(工学), 合肥工業大学, 2014年06月
■ URL
researchmap URLホームページURL■ ID 各種
研究者番号
  • 40946787
ORCID IDJ-Global ID■ 研究キーワード・分野
研究キーワード
  • Robotic AI
  • 大規模マルチモーダルモデル
  • マルチモーダル処理
  • 推薦システム
  • 欠陥検出
  • 人工知能
  • コンピュータビジョン
研究分野
  • 情報通信, 知能ロボティクス
  • 情報通信, 知能情報学
■ 担当教育組織

経歴

■ 経歴
経歴
  • 2025年08月 - 現在
    東京大学, 客員研究員, 日本国
  • 2025年04月 - 現在
    北海道大学, 大学院情報科学研究院 情報理工学部門, 准教授
  • 2023年10月 - 2025年03月
    東京大学, 大学院情報理工学系研究科 電子情報学専攻, 特任助教, 日本国
  • 2023年11月 - 2024年03月
    東京大学 Beyond AI 研究推進機構, Adjunct Project assistant professor, 日本国
  • 2022年07月 - 2023年10月
    東京大学 Beyond AI 研究推進機構, Adjunct project researcher, 日本国
  • 2021年06月 - 2023年10月
    東京大学, 大学院情報理工学系研究科 電子情報学専攻, 特任研究员, 日本国
  • 2014年07月 - 2015年08月
    BYD, 設計第二部, 機械工学エンジニア, 中華人民共和国
学歴
  • 2015年09月 - 2020年12月, 華中科技大学, 機械科学と工学学院, 機械電子系, 博士, 中華人民共和国
  • 2018年10月 - 2019年11月, クイーンズランド大学, 機械・鉱業工学部, Visiting Scholar
委員歴
  • 2025年04月 - 現在
    香港研究資助局(RGC)外部審査委員
  • 2025年06月 - 2029年06月
    IEICE TRANSACTIONS on Information and Systems, Associate Editor
  • 2026年06月 - 2028年06月
    画像工学研究専門委員会, 専門委員, 学協会

研究活動情報

■ 受賞
  • 2026年05月, シドニー工科大学(University of Technology Sydney, UTS), UTS Visiting Fellowship
  • 2026年03月, NVIDIA, NVIDIA Academic Grant Program Award
    Ling Xiao
  • 2026年02月, 画像工学研究会, IEICE IE賞
    A Multimodal Dataset for Socially Compliant Navigation in Urban Environments
    Zhuonan Liu, Zishuo Wang, Xinyu Zhang, Tomohito Kawabata, Ling Xiao
  • 2025年06月, The 15th ACM International Conference on Multimedia Retrieval (ICMR), 最優秀論文賞
    TourMLLM: A Retrieval-Augmented Multimodal Large Language Model for Multitask Learning in the Tourism Domain
    Hiromasa Yamanishi;Ling Xiao;Toshihiko Yamasaki
  • 2024年02月, 画像工学研究会, IEICE IE賞
    継続学習における敵対的頑健性の向上
    向井皇喜;熊野創一郎;Nicolas Michel;Ling Xiao;山崎俊彦
■ 論文
  • HumAIN: Human-Aware Implicit Social Robot Navigation
    Daeun Song; Nhat Le; Jeffrey Chen; Mohammad Nazeri; Amirreza Payandeh; Rohan Chandra; Reuth Mirsky; Ross Mead; Ling Xiao; Xuesu Xiao
    Proceedings of the 2026 IEEE/RSJ International Conference on Intelligent Robots and Systems (IROS 2026), 2026年09月, [査読有り]
    英語, 研究論文(国際会議プロシーディングス)
  • LLM-Advisor: An LLM Advisor for Cost-efficient Path Planning across Multiple Terrains
    Ling Xiao; Toshihiko Yamasaki
    IEEE Transactions on Automation Science and Engineering, 2026年08月, [査読有り], [筆頭著者]
    英語, 研究論文(学術雑誌), 54594061
  • SOPD-SocialNav: Selective On-Policy Distillation for Vision-Language Social Navigation
    2026 WRC Symposium on Advanced Robotics and Automation (WRC SARA) (WRC SARA 2026), 2026年08月, [査読有り], [最終著者, 責任著者]
    英語, 研究論文(国際会議プロシーディングス)
  • LLM Guided Multi Style Typography and Layout Generation via Dynamic Direct Preference Optimization
    Chen FU; Shengzhou Yi; Ling Xiao; Toshihiko Yamasaki
    Proceedings of the IEEE/CVF Conference on Computer Vision and Pattern Recognition (CVPR) Findings, 5725, 5734, 2026年06月, [査読有り]
    英語, 研究論文(国際会議プロシーディングス)
  • Deconstructing the Failure of Ideal Noise Correction: A Three-Pillar Diagnosis
    Chen Feng, Zhuo Zhi, Zhao Huang, Jiawei Ge, Ling Xiao, Nicu Sebe, Georgios Tzimiropoulos, Ioannis Patras
    Proceedings of the IEEE/CVF Conference on Computer Vision and Pattern Recognition (CVPR), 34512, 34523, 2026年06月, [査読有り]
    英語, 研究論文(国際会議プロシーディングス)
  • E-SocialNav: Efficient Socially Compliant Navigation with Language Models
    Ling Xiao; Daeun Song; Xuesu Xiao; Toshihiko Yamasaki
    Proceedings of the IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP), 20077, 20081, 2026年05月, [査読有り], [筆頭著者]
    英語, 研究論文(国際会議プロシーディングス)
  • A Multihead Continual Learning Framework for Fine-Grained Fashion Image Retrieval with Contrastive Learning and Exponential Moving Average Distillation
    Ling Xiao; Toshihiko Yamasaki
    IEEE Transactions on Multimedia, 1, 10, 2026年04月, [査読有り], [筆頭著者]
    英語, 研究論文(学術雑誌), 47287350
  • MAction-SocialNav: Multi-Action Socially Compliant Navigation via Reasoning-enhanced Prompt Tuning
    Zishuo Wang; Xinyu Zhang; Zhuonan Liu; Tomohito Kawabata; Daeun Song; Xuesu Xiao; Ling Xiao
    2026年, [査読有り], [最終著者, 責任著者]
    英語, 研究論文(学術雑誌), 47287350
  • TourMLLM: A Retrieval-Augmented Multimodal Large Language Model for Multitask Learning in the Tourism Domain
    Hiromasa Yamanishi; Ling Xiao; Toshihiko Yamasaki
    Proceedings of the 2025 International Conference on Multimedia Retrieval, 1654, 1663, ACM, 2025年06月30日, [査読有り], [責任著者]
    研究論文(国際会議プロシーディングス)
  • ActRecognition-GPT: Utilizing Multimodal Large Language Models for Spatiotemporal Action Recognition in Nursery Videos
    Kenta Watanabe; Shuntaro Masuda; Ling Xiao; Toshihiko Yamasaki
    Proceedings of the IEEE 19th International Conference on Automatic Face and Gesture Recognition (FG), 1, 10, IEEE, 2025年05月26日, [査読有り]
    研究論文(国際会議プロシーディングス)
  • Explainable AI for Image Aesthetic Evaluation Using Vision-Language Models
    Supatta Viriyavisuthisakul; Shun Yoshida; Kaede Shiohara; Ling Xiao; Toshihiko Yamasaki
    Proceedings of the Conference on Artificial Intelligence x Multimedia (AIxMM), 62, 65, IEEE, 2025年02月03日, [査読有り]
    研究論文(国際会議プロシーディングス)
  • Multi-level knowledge distillation for fine-grained fashion image retrieval
    Ling Xiao; Toshihiko Yamasaki
    Knowledge-Based Systems, 310, 112955, 112955, Elsevier BV, 2025年02月, [査読有り], [筆頭著者]
    研究論文(学術雑誌), 47287350
  • Combining Non-Numerical Text and Numerical Sequences in LLM-based Survival Prediction
    Zijie Zhou; Guoqing Qian; Xinyi Jiang; Guoming Wang; Rongxing Lu; Ling Xiao; Siliang Tang
    Proceedings of the 22nd Pacific Rim International Conference Series on Artificial Intelligence (PRICAI 2025), 256, 271, 2025年, [査読有り]
    研究論文(国際会議プロシーディングス)
  • Incorporating Semantic Visual Content into Click-Through Rate Prediction for Video Advertisements
    Yoshiaki Tanabe; Shuntaro Masuda; Gakumatsu Ryu; Naoto Tanji; Hiroyuki Seshime; Ling Xiao; Toshihiko Yamasaki
    Proceedings of the 17th Asia Pacific Signal and Information Processing Association Annual Summit and Conference (APSIPA ASC 2025), 1916, 1921, 2025年, [査読有り]
    研究論文(国際会議プロシーディングス)
  • GeoDCL: Weak Geometrical Distortion based Contrastive Learning for Fine-grained Fashion Image Retrieval
    Ling Xiao; Toshihiko Yamasaki
    IEEE Transactions on Artificial Intelligence, 1, 13, Institute of Electrical and Electronics Engineers (IEEE), 2025年, [査読有り], [筆頭著者]
    研究論文(学術雑誌), 47287350
  • LITA: LMM-Guided Image-Text Alignment for Art Assessment
    Tatsumi Sunada; Kaede Shiohara; Ling Xiao; Toshihiko Yamasaki
    Proceedings of the International Conference on Multimedia Modeling (MMM), 268, 281, Springer Nature Singapore, 2024年12月31日, [査読有り]
    研究論文(国際会議プロシーディングス)
  • LLaVA-Tour: A Large Multimodal Model for Japanese Tourist Spot Prediction and Review Generation
    Hiromasa Yamanishi; Ling Xiao; Toshihiko Yamasaki
    Proceedings of the IEEE International Conference on Visual Communications and Image Processing (VCIP), 1, 5, IEEE, 2024年12月08日, [査読有り], [責任著者]
    研究論文(国際会議プロシーディングス)
  • Language-Guided Self-Supervised Video Summarization Using Text Semantic Matching Considering the Diversity of the Video
    Tomoya Sugihara; Shuntaro Masuda; Ling Xiao; Toshihiko Yamasaki
    Proceedings of the 6th ACM International Conference on Multimedia in Asia, abs/2405.08890, 1, ACM, 2024年12月03日, [査読有り], [責任著者]
    研究論文(国際会議プロシーディングス), Current video summarization methods primarily depend on supervised computer
    vision techniques, which demands time-consuming manual annotations. Further,
    the annotations are always subjective which make this task more challenging. To
    address these issues, we analyzed the feasibility in transforming the video
    summarization into a text summary task and leverage Large Language Models
    (LLMs) to boost video summarization. This paper proposes a novel
    self-supervised framework for video summarization guided by LLMs. Our method
    begins by generating captions for video frames, which are then synthesized into
    text summaries by LLMs. Subsequently, we measure semantic distance between the
    frame captions and the text summary. It's worth noting that we propose a novel
    loss function to optimize our model according to the diversity of the video.
    Finally, the summarized video can be generated by selecting the frames whose
    captions are similar with the text summary. Our model achieves competitive
    results against other state-of-the-art methods and paves a novel pathway in
    video summarization.
  • SCOMatch: Alleviating Overtrusting in Open-Set Semi-supervised Learning
    Zerun Wang; Liuyu Xiang; Lang Huang; Jiafeng Mao; Ling Xiao; Toshihiko Yamasaki
    Proceedings of the European Conference on Computer Vision, 217, 233, Springer Nature Switzerland, 2024年10月29日, [査読有り]
    英語, 研究論文(国際会議プロシーディングス)
  • Adversarially Robust Continual Learning with Anti-Forgetting Loss
    Koki Mukai; Soichiro Kumano; Nicolas Michel; Ling Xiao; Toshihiko Yamasaki
    Proceedings of the IEEE International Conference on Image Processing (ICIP), 1085, 1091, IEEE, 2024年10月27日, [査読有り]
    研究論文(国際会議プロシーディングス)
  • E-ReaRev: Adaptive Reasoning for Question Answering over Incomplete Knowledge Graphs by Edge and Meaning Extensions
    Xiaotong Ye; Ling Xiao; Chi Zhang; Toshihiko Yamasaki
    Proceedings of the International Conference on Applications of Natural Language to Information Systems, 85, 95, Springer Nature Switzerland, 2024年09月20日, [査読有り]
    研究論文(国際会議プロシーディングス)
  • Improving Plasticity in Online Continual Learning via Collaborative Learning
    Maorong Wang; Nicolas Michel; Ling Xiao; Toshihiko Yamasaki
    Proceedings of the IEEE/CVF Conference on Computer Vision and Pattern Recognition (CVPR), 23460, 23469, IEEE, 2024年06月16日, [査読有り]
    研究論文(国際会議プロシーディングス)
  • Rethinking Momentum Knowledge Distillation in Online Continual Learning.
    Nicolas Michel; Maorong Wang; Ling Xiao 0001; Toshihiko Yamasaki
    Proceedings of the International Conference on Machine Learning (ICML), abs/2309.02870, 35607, 35622, 2024年, [査読有り]
    研究論文(国際会議プロシーディングス)
  • Boosting Fine-grained Fashion Retrieval with Relational Knowledge Distillation
    Ling Xiao; Toshihiko Yamasaki
    Proceedings of the IEEE/CVF Conference on Computer Vision and Pattern Recognition (CVPR) Workshops, 8229, 8234, 2024年, [査読有り], [筆頭著者]
    研究論文(国際会議プロシーディングス)
  • A Multimodal Dataset and Benchmark for Tourism Review Generation
    Hiromasa Yamanishi; Ling Xiao; Toshihiko Yamasaki
    Proceedings of the ACM International Conference on Recommender Systems Workshops, 3886, 49, 67, 2024年, [査読有り], [責任著者]
    研究論文(国際会議プロシーディングス)
  • HetSpot: Analyzing Tourist Spot Popularity with Heterogeneous Graph Neural Network.
    Hiromasa Yamanishi; Ling Xiao 0001; Toshihiko Yamasaki
    Proceedings of the 6th International Conference on Image, Video and Signal Processing, 111, 120, 2024年, [査読有り], [責任著者]
    研究論文(国際会議プロシーディングス)
  • LiFSO-Net: A lightweight feature screening optimization network for complex-scale flat metal defect detection.
    Hao Zhong; Ling Xiao 0001; Haifeng Wang; Xin Zhang; Chenhui Wan; Youmin Hu; Bo Wu
    Knowl. Based Syst., 304, 112520, 112520, 2024年, [査読有り]
    研究論文(学術雑誌)
  • STFE-Net: A multi-stage approach to enhance statistical texture feature for defect detection on metal surfaces.
    Hao Zhong; Daxing Fu; Ling Xiao; Fang Zhao; Jie Liu 0017; Youmin Hu; Bo Wu 0006
    Advanced engineering informatics, 61, 102437, 102437, Elsevier BV, 2024年, [査読有り]
    研究論文(学術雑誌)
  • Attribute-Guided Multi-Level Attention Network for Fine-Grained Fashion Retrieval
    Ling Xiao; Toshihiko Yamasaki
    IEEE Access, 12, 48068, 48080, 2024年, [査読有り], [筆頭著者]
    研究論文(学術雑誌), Fine-grained fashion retrieval searches for items that share a similar
    attribute with the query image. Most existing methods use a pre-trained feature
    extractor (e.g., ResNet 50) to capture image representations. However, a
    pre-trained feature backbone is typically trained for image classification and
    object detection, which are fundamentally different tasks from fine-grained
    fashion retrieval. Therefore, existing methods suffer from a feature gap
    problem when directly using the pre-trained backbone for fine-tuning. To solve
    this problem, we introduce an attribute-guided multi-level attention network
    (AG-MAN). Specifically, we first enhance the pre-trained feature extractor to
    capture multi-level image embedding, thereby enriching the low-level features
    within these representations. Then, we propose a classification scheme where
    images with the same attribute, albeit with different values, are categorized
    into the same class. This can further alleviate the feature gap problem by
    perturbing object-centric feature learning. Moreover, we propose an improved
    attribute-guided attention module for extracting more accurate
    attribute-specific representations. Our model consistently outperforms existing
    attention based methods when assessed on the FashionAI (62.8788% in MAP),
    DeepFashion (8.9804% in MAP), and Zappos50k datasets (93.32% in Prediction
    accuracy). Especially, ours improves the most typical ASENet_V2 model by 2.12%,
    0.31%, and 0.78% points in FashionAI, DeepFashion, and Zappos50k datasets,
    respectively. The source code is available in
    https://github.com/Dr-LingXiao/AG-MAN.
  • Online Open-set Semi-supervised Object Detection via Semi-supervised Outlier Filtering.
    Zerun Wang; Ling Xiao; Liuyu Xiang; Zhaotian Weng; Toshihiko Yamasaki
    CoRR, abs/2305.13802, 2023年
    研究論文(学術雑誌)
  • Learning Fashion Compatibility with Color Distortion Prediction
    Ling Xiao; Xiaofeng Zhang; Toshihiko Yamasaki
    Proceedings of the IEEE 6th International Conference on Multimedia Information Processing and Retrieval (MIPR), 81, 84, 2023年, [査読有り], [筆頭著者]
    英語, 研究論文(国際会議プロシーディングス)
  • Toward a More Robust Fine-Grained Fashion Retrieval.
    Ling Xiao; Xiaofeng Zhang; Toshihiko Yamasaki
    Proceedings of the IEEE 6th International Conference on Multimedia Information Processing and Retrieval (MIPR), 1, 4, 2023年, [査読有り], [筆頭著者]
    英語, 研究論文(国際会議プロシーディングス)
  • Bridging the Capacity Gap for Online Knowledge Distillation.
    Maorong Wang; Hao Yu; Ling Xiao; Toshihiko Yamasaki
    Proceedings of the IEEE 6th International Conference on Multimedia Information Processing and Retrieval (MIPR), 1, 4, 2023年, [査読有り]
    英語, 研究論文(国際会議プロシーディングス)
  • Sat: Self-Adaptive Training for Fashion Compatibility Prediction
    Ling Xiao; Toshihiko Yamasaki
    Proceedings of the IEEE International Conference on Image Processing (ICIP), 2431, 2435, IEEE, 2022年10月16日, [査読有り], [筆頭著者]
    英語, 研究論文(国際会議プロシーディングス)
  • Missing Small Fastener Detection Using Deep Learning
    Ling Xiao; Bo Wu; Youmin Hu
    IEEE Transactions on Instrumentation and Measurement, 70, 1, 9, Institute of Electrical and Electronics Engineers ({IEEE}), 2021年, [査読有り], [筆頭著者]
    英語, 研究論文(学術雑誌)
  • Surface Defect Detection Using Image Pyramid
    Ling Xiao; Bo Wu; Youmin Hu
    IEEE Sensors Journal, 20, 13, 7181, 7188, Institute of Electrical and Electronics Engineers ({IEEE}), 2020年07月01日, [査読有り], [筆頭著者]
    研究論文(学術雑誌)
  • A Hierarchical Features-Based Model for Freight Train Defect Inspection
    Ling Xiao; Bo Wu; Youmin Hu; Jie Liu
    IEEE Sensors Journal, 1, 1, Institute of Electrical and Electronics Engineers ({IEEE}), 2020年03月01日, [査読有り], [筆頭著者]
    英語, 研究論文(学術雑誌)
  • OSED: Object-specific edge detection.
    Ling Xiao; Bo Wu 0006; Youmin Hu
    Journal of Visual Communication and Image Representation, 72, 102918, 102918, Elsevier BV, 2020年, [査読有り], [筆頭著者]
    英語, 研究論文(学術雑誌)
  • Detection of powder bed defects in selective laser sintering using convolutional neural network
    Xiao, Ling; Lu, Mingyuan; Huang, Han
    The International Journal of Advanced Manufacturing Technology, 107, 5–6, 2485, 2496, Springer, 2020年, [査読有り], [筆頭著者]
    英語, 研究論文(学術雑誌)
  • Surface Defect Detection using Hierarchical Features.
    Ling Xiao; Tao Huang; Bo Wu 0006; Youmin Hu; Jiehan Zhou
    Proceedings of the 15th IEEE International Conference on Automation Science and Engineering(CASE), 1592, 1596, IEEE, 2019年, [査読有り], [筆頭著者]
    英語, 研究論文(国際会議プロシーディングス)
■ その他活動・業績
  • Enhancing Lightweight Vision Language Models through Group Competitive Learning for Socially Compliant Navigation
    Xinyu Zhang; Atsushi Konno; Toshihiko Yamasaki; Ling Xiao, 2026年03月12日
    Social robot navigation requires a sophisticated integration of scene semantics and human social norms. Scaling up Vision Language Models (VLMs) generally improves reasoning and decision-making capabilities for socially compliant navigation. However, increased model size incurs substantial computational overhead, limiting suitability for real-time robotic deployment. Conversely, lightweight VLMs enable efficient inference but often exhibit weaker reasoning and decision-making performance in socially complex environments. Achieving both strong reasoning ability and efficiency remains an open challenge. To bridge this gap, we propose Group Competitive Learning (GCL), a strategy designed to amplify the capabilities of lightweight VLMs. Our strategy introduces the Group Competitive Objective (GCO) to harmonize global semantics with distributional regularization, alongside Asymmetric Group Optimization (AGO) to explore the upper limits of model performance. Empirical evaluations on social navigation benchmarks demonstrate that GCL significantly elevates VLM performance. Specifically, GCL enables the Qwen2.5-VL-3B learner model and guide Qwen3-VL-4B to achieve an F1 score of 0.968 and 0.914, representing 40\% and 12\% improvement over vanilla supervised fine-tuning (SFT). Notably, under vanilla SFT, the 3B model initially trails the 8B model (F1: 0.692 vs. 0.755). However, through the GCL, the 3B model outperforms (28\%) the 8B baseline model. These results suggest that GCL provides an effective solution for achieving both high accuracy and computational efficiency in real-world deployment.
  • Spectral Probing of Feature Upsamplers in 2D-to-3D Scene Reconstruction
    Ling Xiao; Yuliang Xiu; Yue Chen; Guoming Wang; Toshihiko Yamasaki, 2026年03月06日
    A typical 2D-to-3D pipeline takes multi-view images as input, where a Vision Foundation Model (VFM) extracts features that are spatially upsampled to dense representations for 3D reconstruction. If dense features across views preserve geometric consistency, differentiable rendering can recover an accurate 3D representation, making the feature upsampler a critical component. Recent learnable upsampling methods mainly aim to enhance spatial details, such as sharper geometry or richer textures, yet their impact on 3D awareness remains underexplored. To address this gap, we introduce a spectral diagnostic framework with six complementary metrics that characterize amplitude redistribution, structural spectral alignment, and directional stability. Across classical interpolation and learnable upsampling methods on CLIP and DINO backbones, we observe three key findings. First, structural spectral consistency (SSC/CSC) is the strongest predictor of NVS quality, whereas High-Frequency Spectral Slope Drift (HFSS) often correlates negatively with reconstruction performance, indicating that emphasizing high-frequency details alone does not necessarily improve 3D reconstruction. Second, geometry and texture respond to different spectral properties: Angular Energy Consistency (ADC) correlates more strongly with geometry-related metrics, while SSC/CSC influence texture fidelity slightly more than geometric accuracy. Third, although learnable upsamplers often produce sharper spatial features, they rarely outperform classical interpolation in reconstruction quality, and their effectiveness depends on the reconstruction model. Overall, our results indicate that reconstruction quality is more closely related to preserving spectral structure than to enhancing spatial detail, highlighting spectral consistency as an important principle for designing upsampling strategies in 2D-to-3D pipelines.
  • Probing Prompt Design for Socially Compliant Robot Navigation with Vision Language Models
    Ling Xiao; Toshihiko Yamasaki, 2026年01月21日
    Language models are increasingly used for social robot navigation, yet existing benchmarks largely overlook principled prompt design for socially compliant behavior. This limitation is particularly relevant in practice, as many systems rely on small vision language models (VLMs) for efficiency. Compared to large language models, small VLMs exhibit weaker decision-making capabilities, making effective prompt design critical for accurate navigation. Inspired by cognitive theories of human learning and motivation, we study prompt design along two dimensions: system guidance (action-focused, reasoning-oriented, and perception-reasoning prompts) and motivational framing, where models compete against humans, other AI systems, or their past selves. Experiments on two socially compliant navigation datasets reveal three key findings. First, for non-finetuned GPT-4o, competition against humans achieves the best performance, while competition against other AI systems performs worst. For finetuned models, competition against the model's past self yields the strongest results, followed by competition against humans, with performance further influenced by coupling effects among prompt design, model choice, and dataset characteristics. Second, inappropriate system prompt design can significantly degrade performance, even compared to direct finetuning. Third, while direct finetuning substantially improves semantic-level metrics such as perception, prediction, and reasoning, it yields limited gains in action accuracy. In contrast, our system prompts produce a disproportionately larger improvement in action accuracy, indicating that the proposed prompt design primarily acts as a decision-level constraint rather than a representational enhancement.
  • MUSON: A Reasoning-oriented Multimodal Dataset for Socially Compliant Navigation in Urban Environments
    Zhuonan Liu; Xinyu Zhang; Zishuo Wang; Tomohito Kawabata; Xuesu Xiao; Ling Xiao, 2025年12月28日
    Socially compliant navigation requires structured reasoning over dynamic pedestrians and physical constraints to ensure safe and interpretable decisions. However, existing social navigation datasets often lack explicit reasoning supervision and exhibit highly long-tailed action distributions, limiting models' ability to learn safety-critical behaviors. To address these issues, we introduce MUSON, a multimodal dataset for short-horizon social navigation collected across diverse indoor and outdoor campus scenes. MUSON adopts a structured five-step Chain-of-Thought annotation consisting of perception, prediction, reasoning, action, and explanation, with explicit modeling of static physical constraints and a rationally balanced discrete action space. Compared to SNEI, MUSON provides consistent reasoning, action, and explanation. Benchmarking multiple state-of-the-art Small Vision Language Models on MUSON shows that Qwen2.5-VL-3B achieves the highest decision accuracy of 0.8625, demonstrating that MUSON serves as an effective and reusable benchmark for socially compliant navigation. The dataset is publicly available at https://huggingface.co/datasets/MARSLab/MUSON
  • SocialNav-MoE: A Mixture-of-Experts Vision Language Model for Socially Compliant Navigation with Reinforcement Fine-Tuning
    Tomohito Kawabata; Xinyu Zhang; Ling Xiao, 2025年12月15日
    For robots navigating in human-populated environments, safety and social compliance are equally critical, yet prior work has mostly emphasized safety. Socially compliant navigation that accounts for human comfort, social norms, and contextual appropriateness remains underexplored. Vision language models (VLMs) show promise for this task; however, large-scale models incur substantial computational overhead, leading to higher inference latency and energy consumption, which makes them unsuitable for real-time deployment on resource-constrained robotic platforms. To address this issue, we investigate the effectiveness of small VLM and propose SocialNav-MoE, an efficient Mixture-of-Experts vision language model for socially compliant navigation with reinforcement fine-tuning (RFT). We further introduce a semantic similarity reward (SSR) to effectively leverage RFT for enhancing the decision-making capabilities. Additionally, we study the effectiveness of different small language model types (Phi, Qwen, and StableLM), routing strategies, and vision encoders (CLIP vs. SigLIP, frozen vs. fine-tuned). Experiments on the SNEI dataset demonstrate that SocialNav-MoE achieves an excellent balance between navigation accuracy and efficiency. The proposed SSR function is more effective than hard-level and character-level rewards. Source code will be released upon acceptance.
  • 大規模言語モデルを活用した自己教師あり学習によるビデオ要約
    杉原, 朋弥; 増田, 俊太郎; 肖, 玲; 山崎, 俊彦, 第86回全国大会講演論文集, 2024, 1, 653, 654, 2024年03月01日
    既存のビデオ要約手法は重要シーン抽出にコンピュータービジョン技術をベースにしていて、大量のアノテーションデータが必要である。しかし、人手によるアノテーションは主観的である上にコストが高いため教師データの作成難易度が高い。そこで本研究では、近年の大規模言語モデルの進歩を活用した、自己教師あり学習に基づく新しいフレームワークを提案する。具体的には、フレームからキャプションを生成して映像を言語化し、大規模言語モデルにより映像の要約を作成する。この要約を教師データとして使用して、自然言語処理による新しいビデオ要約手法を実現した。本研究はビデオ要約の分野に新しい方向性を示し、既存の課題の解決に寄与する。, 日本語
  • Rethinking Momentum Knowledge Distillation in Online Continual Learning
    Nicolas Michel; Maorong Wang; Ling Xiao; Toshihiko Yamasaki, Forty-first International Conference on Machine Learning, abs/2309.02870, 2024年
    Online Continual Learning (OCL) addresses the problem of training neural
    networks on a continuous data stream where multiple classification tasks emerge
    in sequence. In contrast to offline Continual Learning, data can be seen only
    once in OCL, which is a very severe constraint. In this context, replay-based
    strategies have achieved impressive results and most state-of-the-art
    approaches heavily depend on them. While Knowledge Distillation (KD) has been
    extensively used in offline Continual Learning, it remains under-exploited in
    OCL, despite its high potential. In this paper, we analyze the challenges in
    applying KD to OCL and give empirical justifications. We introduce a direct yet
    effective methodology for applying Momentum Knowledge Distillation (MKD) to
    many flagship OCL methods and demonstrate its capabilities to enhance existing
    approaches. In addition to improving existing state-of-the-art accuracy by more
    than $10\%$ points on ImageNet100, we shed light on MKD internal mechanics and
    impacts during training in OCL. We argue that similar to replay, MKD should be
    considered a central component of OCL. The code is available at
    \url{https://github.com/Nicolas1203/mkd_ocl}.
  • Online Open-set Semi-supervised Object Detection with Dual Competing Head
    Zerun Wang; Ling Xiao; Liuyu Xiang; Zhaotian Weng; Toshihiko Yamasaki, 2023年05月23日
    Open-set semi-supervised object detection (OSSOD) task leverages practical
    open-set unlabeled datasets that comprise both in-distribution (ID) and
    out-of-distribution (OOD) instances for conducting semi-supervised object
    detection (SSOD). The main challenge in OSSOD is distinguishing and filtering
    the OOD instances (i.e., outliers) during pseudo-labeling since OODs will
    affect the performance. The only OSSOD work employs an additional offline OOD
    detection network trained solely with labeled data to solve this problem.
    However, the limited labeled data restricts the potential for improvement.
    Meanwhile, the offline strategy results in low efficiency. To alleviate these
    issues, this paper proposes an end-to-end online OSSOD framework that improves
    performance and efficiency: 1) We propose a semi-supervised outlier filtering
    method that more effectively filters the OOD instances using both labeled and
    unlabeled data. 2) We propose a threshold-free Dual Competing OOD head that
    further improves the performance by suppressing the error accumulation during
    semi-supervised outlier filtering. 3) Our proposed method is an online
    end-to-end trainable OSSOD framework. Experimental results show that our method
    achieves state-of-the-art performance on several OSSOD benchmarks compared to
    existing methods. Moreover, additional experiments show that our method is more
    efficient and can be easily applied to different SSOD frameworks to boost their
    performance.
  • MetaMixer: A Regularization Strategy for Online Knowledge Distillation
    Maorong Wang; Ling Xiao; Toshihiko Yamasaki, CoRR, abs/2303.07951, 2023年03月14日
    Online knowledge distillation (KD) has received increasing attention in
    recent years. However, while most existing online KD methods focus on
    developing complicated model structures and training strategies to improve the
    distillation of high-level knowledge like probability distribution, the effects
    of the multi-level knowledge in the online KD are greatly overlooked,
    especially the low-level knowledge. Thus, to provide a novel viewpoint to
    online KD, we propose MetaMixer, a regularization strategy that can strengthen
    the distillation by combining the low-level knowledge that impacts the
    localization capability of the networks, and high-level knowledge that focuses
    on the whole image. Experiments under different conditions show that MetaMixer
    can achieve significant performance gains over state-of-the-art methods.
  • Semi-supervised Fashion Compatibility Prediction by Color Distortion Prediction
    Ling Xiao; Toshihiko Yamasaki, CoRR, abs/2212.14680, 2022年12月27日
    Supervised learning methods have been suffering from the fact that a
    large-scale labeled dataset is mandatory, which is difficult to obtain. This
    has been a more significant issue for fashion compatibility prediction because
    compatibility aims to capture people's perception of aesthetics, which are
    sparse and changing. Thus, the labeled dataset may become outdated quickly due
    to fast fashion. Moreover, labeling the dataset always needs some expert
    knowledge; at least they should have a good sense of aesthetics. However, there
    are limited self/semi-supervised learning techniques in this field. In this
    paper, we propose a general color distortion prediction task forcing the
    baseline to recognize low-level image information to learn more discriminative
    representation for fashion compatibility prediction. Specifically, we first
    propose to distort the image by adjusting the image color balance, contrast,
    sharpness, and brightness. Then, we propose adding Gaussian noise to the
    distorted image before passing them to the convolutional neural network (CNN)
    backbone to learn a probability distribution over all possible distortions. The
    proposed pretext task is adopted in the state-of-the-art methods in fashion
    compatibility and shows its effectiveness in improving these methods' ability
    in extracting better feature representations. Applying the proposed pretext
    task to the baseline can consistently outperform the original baseline.
■ 講演・口頭発表等
  • 人工知能の新たな領域を探求する
    肖玲
    Forum for HUASHAN Scholars (IFHS2024), 2024年10月27日, 中国語, 公開講演,セミナー,チュートリアル,講習,講義等
    2024年10月25日 - 2024年10月28日, [招待講演]
  • 大規模マルチモーダルモデルを活用した推薦システム
    肖玲
    The 4th International Computational Imaging Conference (CITA 2024), 2024年09月22日, 英語, 口頭発表(招待・特別)
    2024年09月20日 - 2024年09月22日, [招待講演]
  • ファッションリトリーバルの過去・現在・未来:ユーザー志向に向けて
    肖玲
    MVE, 2024年03月13日, 英語, 口頭発表(招待・特別)
    2024年03月13日 - 2024年03月15日, [招待講演]
■ 所属学協会
  • IEEE, ACM, IEICE, IEEE SPS, IEEE Robotics and Automation Society
■ 共同研究・競争的資金等の研究課題
  • 困難な環境における作業を実現するヒューマノイドの統合的研究開発
    科学技術振興機構 ムーンショット 目標3
    2026年07月 - 2030年11月
    原田 研介(PM, PI); 川角 祐一郎(PI); 渡辺 哲陽(PI); 梶田 秀司(PI); 小水内 俊介(PI); 築地原 里樹(PI); 長谷川 泰久(PI); 清川 拓哉(PI); 垣内 洋平(PI); 妹尾 拓(PI); Ling Xiao(PI); 松原 崇充(PI); 赤坂 亮太(PI)
    研究代表者, JPMJMS263E
  • 自律型ロボティック基盤モデルの構築
    豊田理研スカラ
    2026年04月 - 2028年03月
    公益財団法人豊田理化学研究所
  • スマート農業ロボット
    HU-UMA Joint Research Seed Fund
    2026年04月 - 2027年03月
    Hokkaido University
  • Multimodal Socially Compliant Open-World Navigation with Continual Reinforcement Learning
    NII戦略研究公募型研究
    2026年04月 - 2027年03月
    国立情報学研究所(NII), 研究代表者
  • Efficient and accurate scaling Graph Neural Networks for giant graphs
    日本学術振興会 若手研究
    2024年04月 - 2026年03月
    Japan Society for the Promotion of Science, Grant-in-Aid for Early-Career Scientists, The University of Tokyo, 24K20787
■ 産業財産権
  • 静脈穿刺に用いる穿刺ターゲットの認識および位置決め方法
    特許権, 肖玲,欧阳浩,叶霖,韩斌,陈学东,杨新
    特願202210202422.1, 2022年03月03日
  • 視覚に基づく鋼材コイルの位置決め方法および装置
    特許権, 胡友民,肖玲,吴波
    特願201811059328.5, 2019年03月19日
  • 鋼材コイルのステレオビジョン位置決め方法および装置
    特許権, 胡友民,肖玲,吴波
    特願201810094718.X, 2018年01月31日
  • 光フロー画像に対する高速なFCM画像分割手法
    特許権, 胡友民; 胡中旭; 吴波; 武敏健; 刘颉; 肖玲; 王诗杰; 李雪莲
    特願201710530461.3, 2017年06月28日
  • 可視化されたクレーン吊り下げ位置決めシステム
    特許権, 胡友民; 肖玲; 吴波; 刘颉
    特願201611246219.5, 2016年12月29日
  • 溶接溶融池オンライン監視プラットフォーム用の多機能治具
    実用新案権, 胡友民; 唐松; 肖玲; 谷勇; 刘颉
    特願201620434683.6, 2016年05月13日
  • 溶接溶融池の動的プロセスをオンライン監視するシステムおよび方法
    特許権, 胡友民; 刘颉; 肖玲; 唐松; 谷勇
    特願201610288460.8, 2016年05月04日