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

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2505.12929 2025-05-20 cs.CL cs.AI cs.LG

Do Not Let Low-Probability Tokens Over-Dominate in RL for LLMs

Zhihe Yang, Xufang Luo, Zilong Wang, Dongqi Han, Zhiyuan He, Dongsheng Li, Yunjian Xu

机构 * The Chinese University of Hong Kong(香港中文大学) Microsoft Research Asia(微软亚洲研究院)

Comments 24 pages, 12 figures

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2505.12896 2025-05-20 cs.CL cs.LG stat.ML

On the Thinking-Language Modeling Gap in Large Language Models

Chenxi Liu, Yongqiang Chen, Tongliang Liu, James Cheng, Bo Han, Kun Zhang

机构 * Hong Kong Baptist University(香港 Baptist 大学) MBZUAI Carnegie Mellon University(MBZUAI 美国卡内基梅隆大学) The University of Sydney(悉尼大学) The Chinese University of Hong Kong(香港中文大学)

Comments Chenxi and Yongqiang contributed equally; project page: https://causalcoat.github.io/lot.html

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2505.12744 2025-05-20 cs.AI

Incentivizing Multimodal Reasoning in Large Models for Direct Robot Manipulation

Weiliang Tang, Dong Jing, Jia-Hui Pan, Zhiwu Lu, Yun-Hui Liu, Li Erran Li, Mingyu Ding, Chi-Wing Fu

机构 * Department of Computer Science(计算机科学系) The Chinese University of Hong Kong(香港中文大学) Gaoling School of Artificial Intelligence(九龙人工智能学院) Renmin University of China(中国人民大学) AWS AI Amazon(AWS人工智能亚马逊) University of North Carolina at Chapel Hill(北卡罗来纳大学教堂山分校)

Comments 17 pages, 16 figures

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2505.11175 2025-05-20 cs.RO cs.AI

Real-Time Verification of Embodied Reasoning for Generative Skill Acquisition

Bo Yue, Shuqi Guo, Kaiyu Hu, Chujiao Wang, Benyou Wang, Kui Jia, Guiliang Liu

机构 * 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))

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2502.14471 2025-05-20 cs.CV

Integrating Extra Modality Helps Segmentor Find Camouflaged Objects Well

Chengyu Fang, Chunming He, Longxiang Tang, Yuelin Zhang, Chenyang Zhu, Yuqi Shen, Chubin Chen, Guoxia Xu, Xiu Li

机构 * Tsinghua University(清华大学) Duke University(杜克大学) The Chinese University of Hong Kong(香港中文大学) Nanjing University of Posts and Telecommunications(南京邮电大学)

Comments 18 pages, 8 figures, 14 tables

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2502.08949 2025-05-20 cs.LG

DICE: Device-level Integrated Circuits Encoder with Graph Contrastive Pretraining

Sungyoung Lee, Ziyi Wang, Seunggeun Kim, Taekyun Lee, Yao Lai, David Z. Pan

机构 * Electrical and Computer Engineering, The University of Texas at Austin(得克萨斯大学奥斯汀分校电子与计算机工程系) Computer Science and Engineering, The Chinese University of Hong Kong(香港中文大学计算机科学与工程系) Computer Science, The University of Hong Kong(香港大学计算机科学系)

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2412.00059 2025-05-20 cs.LG cs.AI cs.NE

A Learn-to-Optimize Approach for Coordinate-Wise Step Sizes for Quasi-Newton Methods

Wei Lin, Qingyu Song, Hong Xu

机构 * CSE, CUHK(计算工程系,香港中文大学)

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2505.12597 2025-05-20 cs.SD eess.AS

Chain-Talker: Chain Understanding and Rendering for Empathetic Conversational Speech Synthesis

Yifan Hu, Rui Liu, Yi Ren, Xiang Yin, Haizhou Li

机构 * Inner Mongolia University(内蒙古大学) ByteDance(字节跳动) SRIBD, School of Data Science, The Chinese University of Hong Kong, Shenzhen(SRIBD,数据科学学院,香港中文大学(深圳))

Comments 16 pages, 5 figures, 5 tables. Accepted by ACL 2025 (Findings)

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2505.12511 2025-05-20 cs.CL

DS-ProGen: A Dual-Structure Deep Language Model for Functional Protein Design

Yanting Li, Jiyue Jiang, Zikang Wang, Ziqian Lin, Dongchen He, Yuheng Shan, Yanruisheng Shao, Jiayi Li, Xiangyu Shi, Jiuming Wang, Yanyu Chen, Yimin Fan, Han Li, Yu Li

机构 * The Chinese University of Hong Kong(香港中文大学) Hong Kong University of Science and Technology (Guangzhou)(香港科学与技术大学(广州)) The Hong Kong Polytechnic University(香港理工大学) National University of Singapore(新加坡国立大学)

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2505.12039 2025-05-20 cs.AI cs.CL physics.soc-ph

AI-Driven Automation Can Become the Foundation of Next-Era Science of Science Research

Renqi Chen, Haoyang Su, Shixiang Tang, Zhenfei Yin, Qi Wu, Hui Li, Ye Sun, Nanqing Dong, Wanli Ouyang, Philip Torr

机构 * Shanghai Artificial Intelligence Laboratory(上海人工智能实验室) Department of Engineering Science, University of Oxford(牛津大学工程科学系) Shanghai Institute for Science of Science(上海科学科学研究院) School of Mathematics, Southeast University(东南大学数学学院) Shanghai Innovation Institute(上海创新研究院) Department of Information Engineering, Chinese University of Hong Kong(香港中文大学信息工程系)

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2505.11815 2025-05-20 cs.CV

UniMoCo: Unified Modality Completion for Robust Multi-Modal Embeddings

Jiajun Qin, Yuan Pu, Zhuolun He, Seunggeun Kim, David Z. Pan, Bei Yu

机构 * The Chinese University of Hong Kong, China(香港中文大学) ChatEDA Tech(ChatEDA科技) University of Texas at Austin, USA(德克萨斯大学奥斯汀分校)

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2503.00923 2025-05-20 cs.RO

HWC-Loco: A Hierarchical Whole-Body Control Approach to Robust Humanoid Locomotion

Sixu Lin, Guanren Qiao, Yunxin Tai, Ang Li, Kui Jia, Guiliang Liu

机构 * The Chinese University of Hong Kong (Shenzhen)(香港中文大学(深圳)) Harbin Institute of Technology(哈尔滨工业大学) DexForce Technology(DexForce科技) Southeast University(东南大学)

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2412.07775 2025-05-20 cs.LG cs.CV

Efficient Diversity-Preserving Diffusion Alignment via Gradient-Informed GFlowNets

Zhen Liu, Tim Z. Xiao, Weiyang Liu, Yoshua Bengio, Dinghuai Zhang

机构 * Mila, Université de Montréal(蒙特利尔大学Mila实验室) Max Planck Institute for Intelligent Systems - Tübingen(智能系统马克斯·普朗克研究所(图宾根)) The Chinese University of Hong Kong (Shenzhen)(香港中文大学(深圳)) University of Tübingen(图宾根大学) University of Cambridge(剑桥大学) Microsoft Research(微软研究院)

Comments Technical Report (36 pages, 31 figures), Accepted at ICLR 2025

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2410.23687 2025-05-20 cs.CV cs.CR

Adversarial Attacks of Vision Tasks in the Past 10 Years: A Survey

Chiyu Zhang, Lu Zhou, Xiaogang Xu, Jiafei Wu, Zhe Liu

机构 * Nanjing University of Aeronautics and Astronautics(南京航空航天大学) The Chinese University of Hong Kong(香港中文大学) The University of Hong Kong(香港大学) Zhejiang Lab, Nanjing University of Aeronautics and Astronautics(浙江实验室,南京航空航天大学)

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2406.00434 2025-05-20 cs.CV

MoDGS: Dynamic Gaussian Splatting from Casually-captured Monocular Videos with Depth Priors

Qingming Liu, Yuan Liu, Jiepeng Wang, Xianqiang Lyv, Peng Wang, Wenping Wang, Junhui Hou

机构 * City University of HongKong(香港城市大学) HKUST(香港科技大学) HKU(香港大学) TAMU(德克萨斯大学奥斯汀分校) CUHK(SZ)(香港城市大学(深圳))

Comments Accepted as a poster at ICLR. Project page: https://modgs.github.io

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2505.11344 2025-05-19 cs.CV cs.LG

Dynamic Base model Shift for Delta Compression

Chenyu Huang, Peng Ye, Shenghe Zheng, Xiaohui Wang, Lei Bai, Tao Chen, Wanli Ouyang

机构 * Fudan University(复旦大学) Shanghai AI Laboratory(上海人工智能实验室) The Chinese University of Hong Kong(香港中文大学) Harbin Institute of Technology(哈尔滨工业大学)

Comments 16 pages, 7 figures

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2505.11245 2025-05-19 cs.CV

Diffusion-NPO: Negative Preference Optimization for Better Preference Aligned Generation of Diffusion Models

Fu-Yun Wang, Yunhao Shui, Jingtan Piao, Keqiang Sun, Hongsheng Li

机构 * MMLab, CUHK, Hong Kong(CUHK的MMLab, 香港) Shanghai Jiang Tong University, Shanghai(上海江 Tong大学, 上海) CPII under InnoHK, Hong Kong(InnoHK下的CPII, 香港)

Comments Accepted to ICLR 2025

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2505.11132 2025-05-19 cs.LG

Fairness-aware Anomaly Detection via Fair Projection

Feng Xiao, Xiaoying Tang, Jicong Fan

机构 * The Chinese University of Hong Kong, Shenzhen(香港中文大学(深圳)) Shenzhen Research Institute of Big Data(深圳大数据研究院) The Shenzhen Institute of Artificial Intelligence and Robotics for Society(深圳人工智能与机器人社会研究院) The Guangdong Provincial Key Laboratory of Future Networks of Intelligence(广东省未来网络智能化重点实验室)

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2502.15208 2025-05-19 cs.CL

Unveiling Attractor Cycles in Large Language Models: A Dynamical Systems View of Successive Paraphrasing

Zhilin Wang, Yafu Li, Jianhao Yan, Yu Cheng, Yue Zhang

机构 * Shanghai AI Laboratory(上海人工智能实验室) Westlake University(西湖大学) Zhejiang University(浙江大学) Chinese University of Hong Kong(香港中文大学)

Comments 9 pages

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2411.09238 2025-05-19 cs.LG

Beyond the Heatmap: A Rigorous Evaluation of Component Impact in MCTS-Based TSP Solvers

Xuanhao Pan, Chenguang Wang, Chaolong Ying, Ye Xue, Tianshu Yu

机构 * School of Data Science, The Chinese University of Hong Kong, Shenzhen, China(数据科学学院,香港中文大学(深圳)) Shenzhen Research Institute of Big Data, Shenzhen, China(深圳大数据研究院)

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2409.15963 2025-05-19 cs.LG cs.AI

Provably Efficient Exploration in Inverse Constrained Reinforcement Learning

Bo Yue, Jian Li, Guiliang Liu

机构 * 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)) Stony Brook University, New York(石溪大学)

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2406.06326 2025-05-19 cs.CL

Self-Tuning: Instructing LLMs to Effectively Acquire New Knowledge through Self-Teaching

Xiaoying Zhang, Baolin Peng, Ye Tian, Jingyan Zhou, Yipeng Zhang, Haitao Mi, Helen Meng

机构 * The Chinese University of Hong Kong(香港中文大学) Tencent AI Lab(腾讯AI实验室) Centre for Perceptual and Interactive Intelligence(感知与交互智能中心)

Comments ACL 2025 Findings

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2405.13522 2025-05-19 cs.LG cs.AI cs.CL

Intervention-Aware Forecasting: Breaking Historical Limits from a System Perspective

Zhijian Xu, Hao Wang, Qiang Xu

机构 * Department of Computer Science and Engineering, CUHK(计算机科学与工程系,香港中文大学)

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2402.15328 2025-05-19 cs.LG

Towards Principled Task Grouping for Multi-Task Learning

Chenguang Wang, Xuanhao Pan, Tianshu Yu

机构 * 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))

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2505.10557 2025-05-16 cs.CV cs.AI cs.CL

MathCoder-VL: Bridging Vision and Code for Enhanced Multimodal Mathematical Reasoning

Ke Wang, Junting Pan, Linda Wei, Aojun Zhou, Weikang Shi, Zimu Lu, Han Xiao, Yunqiao Yang, Houxing Ren, Mingjie Zhan, Hongsheng Li

机构 * Multimedia Laboratory (MMLab)(多媒体实验室) The Chinese University of Hong Kong(香港中文大学) CPII under InnoHK(创新香港科技署CPII)

Comments Accepted to ACL 2025 Findings

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2505.10322 2025-05-16 cs.LG math.OC

Asynchronous Decentralized SGD under Non-Convexity: A Block-Coordinate Descent Framework

Yijie Zhou, Shi Pu

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

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2505.04553 2025-05-16 q-fin.MF cs.AI q-fin.RM

Risk-sensitive Reinforcement Learning Based on Convex Scoring Functions

Shanyu Han, Yang Liu, Xiang Yu

机构 * School of Mathematical Sciences, Peking University(北京大学数学科学学院) School of Science and Engineering, The Chinese University of Hong Kong (Shenzhen)(香港中文大学(深圳)科学与工程学院) Department of Applied Mathematics, The Hong Kong Polytechnic University(香港理工大学应用数学系)

Comments 35 pages

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2505.09325 2025-05-15 cs.SD eess.AS

SingNet: Towards a Large-Scale, Diverse, and In-the-Wild Singing Voice Dataset

Yicheng Gu, Chaoren Wang, Junan Zhang, Xueyao Zhang, Zihao Fang, Haorui He, Zhizheng Wu

机构 * 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))

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2505.01742 2025-05-15 eess.IV cs.LG

Easz: An Agile Transformer-based Image Compression Framework for Resource-constrained IoTs

Yu Mao, Jingzong Li, Jun Wang, Hong Xu, Tei-Wei Kuo, Nan Guan, Chun Jason Xue

机构 * Mohamed bin Zayed University of Artificial Intelligence(Mohamed bin Zayed大学人工智能学院) The Hang Seng University of Hong Kong(恒生大学) City University of Hong Kong(城市大学) The Chinese University of Hong Kong(香港中文大学) National Taiwan University(台湾国立台湾大学)

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2410.17075 2025-05-15 cs.LG

Combinatorial Logistic Bandits

Xutong Liu, Xiangxiang Dai, Xuchuang Wang, Mohammad Hajiesmaili, John C. S. Lui

机构 * The Chinese University of Hong Kong(香港中文大学) University of Massachusetts Amherst(马萨诸塞大学阿默斯特分校)

Comments Accepted in ACM SIGMETRICS 2025

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