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The Chinese University of Hong Kong(香港中文大学)

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2505.04623 2025-06-20 cs.CV eess.AS

EchoInk-R1: Exploring Audio-Visual Reasoning in Multimodal LLMs via Reinforcement Learning

Zhenghao Xing, Xiaowei Hu, Chi-Wing Fu, Wenhai Wang, Jifeng Dai, Pheng-Ann Heng

机构 * The Chinese University of Hong Kong(香港中文大学) Shanghai Artificial Intelligence Laboratory(上海人工智能实验室) Tsinghua University(清华大学)

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2506.15684 2025-06-19 cs.GR cs.CV cs.LG

Nabla-R2D3: Effective and Efficient 3D Diffusion Alignment with 2D Rewards

Qingming Liu, Zhen Liu, Dinghuai Zhang, Kui Jia

机构 * The Chinese University of Hong Kong, Shenzhen(香港中文大学(深圳)) Microsoft Research(微软研究院)

Comments Technical Report (21 pages, 21 figures)

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2409.09957 2025-06-19 cs.LG cs.AI

Deep Graph Anomaly Detection: A Survey and New Perspectives

Hezhe Qiao, Hanghang Tong, Bo An, Irwin King, Charu Aggarwal, Guansong Pang

机构 * School of Computing and Information Systems, Singapore Management University(计算与信息系统学院,新加坡管理大学) Department of Computer Science, University of Illinois at Urbana-Champaign(计算机科学系,伊利诺伊大学厄巴纳-香槟分校) College of Computing and Data Science, Nanyang Technological University(计算与数据科学学院,南洋理工大学) Department of Computer Science & Engineering, Chinese University of Hong Kong(计算机科学与工程系,香港中文大学) IBM T. J. Watson Research Center(IBM 托马斯·贾维斯·沃森研究中心)

Comments Accepted by TKDE

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2406.03847 2025-06-19 cs.CL

Lean Workbook: A large-scale Lean problem set formalized from natural language math problems

Huaiyuan Ying, Zijian Wu, Yihan Geng, Zheng Yuan, Dahua Lin, Kai Chen

机构 * Shanghai AI Laboratory(上海人工智能实验室) Tsinghua University(清华大学) Shanghai Jiao Tong University(上海交通大学) Peking University(北京大学) The Chinese University of Hong Kong(香港中文大学)

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2506.14798 2025-06-19 physics.ao-ph cs.AI

MODS: Multi-source Observations Conditional Diffusion Model for Meteorological State Downscaling

Siwei Tu, Jingyi Xu, Weidong Yang, Lei Bai, Ben Fei

机构 * Fudan University(复旦大学) Shanghai AI Laboratory(上海人工智能实验室) Chinese University of Hong Kong(香港中文大学)

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2506.14728 2025-06-18 cs.AI

AgentDistill: Training-Free Agent Distillation with Generalizable MCP Boxes

Jiahao Qiu, Xinzhe Juan, Yimin Wang, Ling Yang, Xuan Qi, Tongcheng Zhang, Jiacheng Guo, Yifu Lu, Zixin Yao, Hongru Wang, Shilong Liu, Xun Jiang, Liu Leqi, Mengdi Wang

机构 * AI Lab, Princeton University(普林斯顿大学人工智能实验室) University of Michigan(密歇根大学) IIIS, Tsinghua University(清华大学人工智能研究院) Shanghai Jiao Tong University(上海交通大学) Columbia University(哥伦比亚大学) The Chinese University of Hong Kong(香港中文大学) Tianqiao and Chrissy Chen Institute(田桥和克里斯蒂·陈研究所) University of Texas at Austin(德克萨斯大学奥斯汀分校)

Comments 10 pages, 5 figures

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2506.14574 2025-06-18 cs.LG cs.AI cs.CL

TGDPO: Harnessing Token-Level Reward Guidance for Enhancing Direct Preference Optimization

Mingkang Zhu, Xi Chen, Zhongdao Wang, Bei Yu, Hengshuang Zhao, Jiaya Jia

机构 * The Chinese University of Hong Kong(香港中文大学) The University of Hong Kong(香港大学) The Hong Kong University of Science(香港科学大学) Huawei(华为)

Comments ICML 2025

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2506.13444 2025-06-18 cs.CV

Self-Supervised Enhancement for Depth from a Lightweight ToF Sensor with Monocular Images

Laiyan Ding, Hualie Jiang, Jiwei Chen, Rui Huang

机构 * School of Science and Engineering, The Chinese University of Hong Kong, Shenzhen(科学与工程学院,香港中文大学(深圳)) Insta360 Research(Insta360研究院)

Comments accepted by IROS 2025

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2506.13651 2025-06-17 cs.LG

xbench: Tracking Agents Productivity Scaling with Profession-Aligned Real-World Evaluations

Kaiyuan Chen, Yixin Ren, Yang Liu, Xiaobo Hu, Haotong Tian, Tianbao Xie, Fangfu Liu, Haoye Zhang, Hongzhang Liu, Yuan Gong, Chen Sun, Han Hou, Hui Yang, James Pan, Jianan Lou, Jiayi Mao, Jizheng Liu, Jinpeng Li, Kangyi Liu, Kenkun Liu, Rui Wang, Run Li, Tong Niu, Wenlong Zhang, Wenqi Yan, Xuanzheng Wang, Yuchen Zhang, Yi-Hsin Hung, Yuan Jiang, Zexuan Liu, Zihan Yin, Zijian Ma, Zhiwen Mo

机构 * Carnegie Mellon University(卡内基梅隆大学) Fudan University(复旦大学) Imperial College London(伦敦帝国学院) Massachusetts Institute of Technology(麻省理工学院) National University of Singapore(新加坡国立大学) Peking University(北京大学) Shanghai Jiao Tong University(上海交通大学) Stanford University(斯坦福大学) The Chinese University of Hong Kong (Shenzhen)(香港中文大学(深圳)) The Ohio State University(俄亥俄州立大学) Tsinghua University(清华大学) University of Chinese Academy of Sciences(中国科学院大学) University of Oxford(牛津大学) University of Pennsylvania(宾夕法尼亚大学) University of Science and Technology of China(中国科学技术大学) University of Sydney(悉尼大学) University of Toronto(多伦多大学) Yale University(耶鲁大学)

Comments Project page: https://xbench.org

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2506.13406 2025-06-17 cs.LG cs.AI

CALM: Consensus-Aware Localized Merging for Multi-Task Learning

Kunda Yan, Min Zhang, Sen Cui, Zikun Qu, Bo Jiang, Feng Liu, Changshui Zhang

机构 * Institute for Artificial Intelligence, Tsinghua University (THUAI)(人工智能研究所,清华大学) Beijing National Research Center for Information Science and Technology (BNRist)(北京国家信息科学与技术研究中心) Department of Automation, Tsinghua University(自动化系,清华大学) East China Normal University (ECNU)(华东师范大学) The Chinese University of Hong Kong, Shenzhen(香港中文大学(深圳)) School of Computing and Information Systems, The University of Melbourne(墨尔本大学计算机与信息系统学院)

Comments Accepted by ICML2025

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2506.12915 2025-06-17 cs.CL

PersonaFeedback: A Large-scale Human-annotated Benchmark For Personalization

Meiling Tao, Chenghao Zhu, Dongyi Ding, Tiannan Wang, Yuchen Eleanor Jiang, Wangchunshu Zhou

机构 * University of Electronic Science and Technology of China(电子科技大学) The Chinese University of Hong Kong, Shenzhen(香港中文大学(深圳)) South China Agricultural University(华南农业大学)

Comments Work in progress

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2506.12462 2025-06-17 cs.NI cs.LG quant-ph

Learning Best Paths in Quantum Networks

Xuchuang Wang, Maoli Liu, Xutong Liu, Zhuohua Li, Mohammad Hajiesmaili, John C. S. Lui, Don Towsley

机构 * University of Massachusetts, Amherst(马萨诸塞大学阿默斯特分校) The Chinese University of Hong Kong(香港中文大学) Carnegie Mellon University(卡内基梅隆大学)

Comments Accepted at INFOCOM 2025

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2505.08294 2025-06-17 cs.CV

FauForensics: Boosting Audio-Visual Deepfake Detection with Facial Action Units

Jian Wang, Baoyuan Wu, Li Liu, Qingshan Liu

机构 * School of Computer Science, Nanjing University of Posts and Telecommunications(南京邮电大学计算机科学学院) School of Data Science, The Chinese University of Hong Kong, Shenzhen(香港中文大学(深圳)数据科学学院) The Hong Kong University of Science and Technology (Guangzhou)(香港科学与技术大学(广州))

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2503.12303 2025-06-17 cs.CV

Will Pre-Training Ever End? A First Step Toward Next-Generation Foundation MLLMs via Self-Improving Systematic Cognition

Xiaoying Zhang, Da Peng, Yipeng Zhang, Zonghao Guo, Chengyue Wu, Jen-Tse Huang, Chi Chen, Wei Ke, Helen Meng, Maosong Sun

机构 * The Chinese University of Hong Kong(香港中文大学) Xi’an Jiaotong University(西安交通大学) Tsinghua University(清华大学) The University of Hong Kong(香港大学) Johns Hopkins University(约翰霍普金斯大学)

Comments 43 pages. Preprint

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2503.07232 2025-06-17 cs.CV

Boosting Diffusion-Based Text Image Super-Resolution Model Towards Generalized Real-World Scenarios

Chenglu Pan, Xiaogang Xu, Ganggui Ding, Yunke Zhang, Wenbo Li, Jiarong Xu, Qingbiao Wu

机构 * Zhejiang University(浙江大学) The Chinese University of Hong Kong(香港中文大学) Fudan University(复旦大学)

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2405.05955 2025-06-17 cs.CL

Smurfs: Multi-Agent System using Context-Efficient DFSDT for Tool Planning

Junzhi Chen, Juhao Liang, Benyou Wang

机构 * The Chinese University of Hong Kong, Shenzhen(香港中文大学(深圳))

Journal ref Proceedings of the 2025 Conference of the Nations of the Americas Chapter of the Association for Computational Linguistics: Human Language Technologies (Volume 1: Long Papers)

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2506.11547 2025-06-16 cs.CV cs.RO cs.SY eess.SY

Linearly Solving Robust Rotation Estimation

Yinlong Liu, Tianyu Huang, Zhi-Xin Yang

机构 * State Key Laboratory of Internet of Things for Smart City (SKL-IOTSC), University of Macau, Macau(物联网智能城市国家重点实验室(SKL-IOTSC),澳门大学) Hong Kong Centre For Logistics Robotics, The Chinese University of Hong Kong, Hong Kong(香港物流机器人中心,香港中文大学)

Comments 23 pages, 18 figures

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2506.11069 2025-06-16 eess.AS cs.AI cs.CL cs.SD

Regularized Federated Learning for Privacy-Preserving Dysarthric and Elderly Speech Recognition

Tao Zhong, Mengzhe Geng, Shujie Hu, Guinan Li, Xunying Liu

机构 * The Chinese University of Hong Kong(香港中文大学)

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2502.11812 2025-06-16 cs.CL cs.AI cs.LG

Towards Understanding Fine-Tuning Mechanisms of LLMs via Circuit Analysis

Xu Wang, Yan Hu, Wenyu Du, Reynold Cheng, Benyou Wang, Difan Zou

机构 * School of Computing(计算学院) Data Science, The University of Hong Kong(数据科学,香港大学) School of Data Science, The Chinese University of Hong Kong, Shenzhen(数据科学学院,香港中文大学(深圳))

Comments 25 pages

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2506.10391 2025-06-13 cs.CV

ReconMOST: Multi-Layer Sea Temperature Reconstruction with Observations-Guided Diffusion

Yuanyi Song, Pumeng Lyu, Ben Fei, Fenghua Ling, Wanli Ouyang, Lei Bai

机构 * Shanghai Jiao Tong University(上海交通大学) Shanghai AI Laboratory(上海人工智能实验室) The Chinese University of Hong Kong(香港中文大学)

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2506.09998 2025-06-12 cs.LG cs.CL

Flipping Against All Odds: Reducing LLM Coin Flip Bias via Verbalized Rejection Sampling

Tim Z. Xiao, Johannes Zenn, Zhen Liu, Weiyang Liu, Robert Bamler, Bernhard Schölkopf

机构 * The Chinese University of Hong Kong, Shenzhen(香港中文大学(深圳)) The Chinese University of Hong Kong(香港中文大学)

Comments Technical Report v1 (21 pages, 14 figures)

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2506.00975 2025-06-12 cs.CL cs.AI cs.SD eess.AS

NTPP: Generative Speech Language Modeling for Dual-Channel Spoken Dialogue via Next-Token-Pair Prediction

Qichao Wang, Ziqiao Meng, Wenqian Cui, Yifei Zhang, Pengcheng Wu, Bingzhe Wu, Irwin King, Liang Chen, Peilin Zhao

机构 * Tencent(腾讯) National University of Singapore(新加坡国立大学) The Chinese University of Hong Kong(香港中文大学) Nanyang Technological University(南洋理工大学) Shenzhen University(深圳大学)

Comments Accepted by ICML 2025

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2505.24461 2025-06-12 cs.LG

Logits-Based Finetuning

Jingyao Li, Senqiao Yang, Sitong Wu, Han Shi, Chuanyang Zheng, Hong Xu, Jiaya Jia

机构 * The Chinese University of Hong Kong(香港中文大学) Huawei Noah’s Ark Lab(华为诺亚实验室) Hong Kong University of Science and Technology(香港科技大学)

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2505.13031 2025-06-12 cs.AI

MindOmni: Unleashing Reasoning Generation in Vision Language Models with RGPO

Yicheng Xiao, Lin Song, Yukang Chen, Yingmin Luo, Yuxin Chen, Yukang Gan, Wei Huang, Xiu Li, Xiaojuan Qi, Ying Shan

机构 * Tsinghua Shenzhen International Graduate School, Tsinghua University(清华大学深圳国际研究生院,清华大学) ARC Lab, Tencent PCG(腾讯PCG ARC实验室) The Chinese University of Hong Kong(香港中文大学) The University of Hong Kong(香港大学)

Comments Code: https://github.com/TencentARC/MindOmni

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2506.09340 2025-06-12 cs.CL cs.AI cs.LG

RePO: Replay-Enhanced Policy Optimization

Siheng Li, Zhanhui Zhou, Wai Lam, Chao Yang, Chaochao Lu

机构 * The Chinese University of Hong Kong(香港中文大学) Shanghai Artificial Intelligence Laboratory(上海人工智能实验室)

Comments Project Page: https://github.com/SihengLi99/RePO

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2506.09289 2025-06-12 cs.SE cs.CL

UTBoost: Rigorous Evaluation of Coding Agents on SWE-Bench

Boxi Yu, Yuxuan Zhu, Pinjia He, Daniel Kang

机构 * The Chinese University of Hong Kong, Shenzhen(香港中文大学(深圳)) University of Illinois Urbana Champaign(伊利诺伊大学厄巴纳-香槟分校)

Journal ref ACL 2025

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2506.09195 2025-06-12 eess.SP cs.AI cs.MA

Graph Attention-based Decentralized Actor-Critic for Dual-Objective Control of Multi-UAV Swarms

Haoran Peng, Ying-Jun Angela Zhang

机构 * Department of Information Engineering, The Chinese University of Hong Kong, Shatin, N.T., Hong Kong, P.R.China(信息工程系,香港中文大学(深圳))

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2506.08777 2025-06-12 cs.CV

Gaussian2Scene: 3D Scene Representation Learning via Self-supervised Learning with 3D Gaussian Splatting

Keyi Liu, Weidong Yang, Ben Fei, Ying He

机构 * Fudan University(复旦大学) The Chinese University of Hong Kong(香港中文大学) Nanyang Technological University(南洋理工大学)

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2506.08048 2025-06-12 cs.CV cs.AI cs.RO

Toward Reliable AR-Guided Surgical Navigation: Interactive Deformation Modeling with Data-Driven Biomechanics and Prompts

Zheng Han, Jun Zhou, Jialun Pei, Jing Qin, Yingfang Fan, Qi Dou

机构 * Department of Computer Science and Engineering, The Chinese University of Hong Kong, HKSAR, China(计算机科学与工程系,香港中文大学(深圳)) Center of Smart Health, School of Nursing, The Hong Kong Polytechnic University, HKSAR, China(智能健康中心,香港理工大学) Department of Hepatobiliary Surgery, The Third Affiliated Hospital of Southern Medical University, Guangzhou, China(肝胆外科部,南方医科大学第三附属医院)

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2503.02450 2025-06-12 cs.CL

Measuring What Makes You Unique: Difference-Aware User Modeling for Enhancing LLM Personalization

Yilun Qiu, Xiaoyan Zhao, Yang Zhang, Yimeng Bai, Wenjie Wang, Hong Cheng, Fuli Feng, Tat-Seng Chua

机构 * National University of Singapore(新加坡国立大学) The Chinese University of Hong Kong(香港中文大学) University of Science and Technology of China(中国科学技术大学)

Comments 2025 ACL Findings

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