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University of California, Los Angeles(加州大学洛杉矶分校)

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2506.02678 2025-06-17 cs.CL cs.CE cs.NA math.NA

TL;DR: Too Long, Do Re-weighting for Efficient LLM Reasoning Compression

Zhong-Zhi Li, Xiao Liang, Zihao Tang, Lei Ji, Peijie Wang, Haotian Xu, Xing W, Haizhen Huang, Weiwei Deng, Yeyun Gong, Zhijiang Guo, Xiao Liu, Fei Yin, Cheng-Lin Liu

机构 * School of Artificial Intelligence, Chinese Academy of Sciences(中国科学院人工智能学院) Institute of Automation, Chinese Academy of Sciences(中国科学院自动化研究所) University of California, Los Angeles(加州大学洛杉矶分校) Tsinghua University(清华大学) Microsoft(微软) Hong Kong University of Science and Technology(香港科技大学) Hong Kong University of Science and Technology (Guangzhou)(香港科技大学(广州))

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2502.02013 2025-06-17 cs.LG cs.AI cs.CL

Layer by Layer: Uncovering Hidden Representations in Language Models

Oscar Skean, Md Rifat Arefin, Dan Zhao, Niket Patel, Jalal Naghiyev, Yann LeCun, Ravid Shwartz-Ziv

机构 * University of Kentucky(肯塔基大学) Mila-Quebec AI Institute(魁北克AI研究所) University of Montreal(蒙特利尔大学) New York University(纽约大学) University of California, Los Angeles(加州大学洛杉矶分校) Meta FAIR

Comments update for ICML2025 camera-ready

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2506.12303 2025-06-17 cs.LG stat.ML

SPIRE: Conditional Personalization for Federated Diffusion Generative Models

Kaan Ozkara, Ruida Zhou, Suhas Diggavi

机构 * Department of Electrical and Computer Engineering, University of California Los Angeles(电气与计算机工程系,加州大学洛杉矶分校)

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2506.12149 2025-06-17 cs.CL

Maximally-Informative Retrieval for State Space Model Generation

Evan Becker, Benjamin Bowman, Matthew Trager, Tian Yu Liu, Luca Zancato, Wei Xia, Stefano Soatto

机构 * UCLA(美国大学洛杉矶分校) AWS AI Labs(亚马逊人工智能实验室)

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2506.11250 2025-06-16 cs.LG cs.AI cs.SY eess.SY

Can Time-Series Foundation Models Perform Building Energy Management Tasks?

Ozan Baris Mulayim, Pengrui Quan, Liying Han, Xiaomin Ouyang, Dezhi Hong, Mario Bergés, Mani Srivastava

机构 * Carnegie Mellon University(卡内基梅隆大学) University of California, Los Angeles(加州大学洛杉矶分校) Hong Kong University of Science and Technology(香港科学与技术大学) Amazon(亚马逊公司)

Comments 30 pages, 5 tables, 8 figures. Under review for Data-Centric Engineering journal

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2506.11082 2025-06-16 cs.CL cs.AI

PRISM: A Transformer-based Language Model of Structured Clinical Event Data

Lionel Levine, John Santerre, Alex S. Young, T. Barry Levine, Francis Campion, Majid Sarrafzadeh

机构 * UCLA David Geffen School of Medicine(加州大学洛杉矶分校大卫·盖芬医学院) ABLE Medical(ABLE医疗公司) MITRE Corp.(MITRE公司)

Comments 15 pages, 4 Figures, 1 Table

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2408.16168 2025-06-16 cs.LG

LeMON: Learning to Learn Multi-Operator Networks

Jingmin Sun, Zecheng Zhang, Hayden Schaeffer

机构 * Carnegie Mellon University(卡内基梅隆大学) Florida State University(佛罗里达州立大学) UCLA(加州大学洛杉矶分校)

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2410.02197 2025-06-12 cs.AI cs.CL cs.LG

Beyond Bradley-Terry Models: A General Preference Model for Language Model Alignment

Yifan Zhang, Ge Zhang, Yue Wu, Kangping Xu, Quanquan Gu

机构 * IIIS, Tsinghua University, Beijing, China(清华大学信息科学技术学院,北京,中国) Shanghai Qi Zhi Institute, Shanghai, China(上海启智研究院,上海,中国) Department of Computer Science, University of California, Los Angeles, California, USA(计算机科学系,加州大学洛杉矶分校,美国,加州)

Comments Accepted to the 42nd International Conference on Machine Learning (ICML 2025)

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2506.09176 2025-06-12 cs.AI cs.LG cs.RO

Robot-Gated Interactive Imitation Learning with Adaptive Intervention Mechanism

Haoyuan Cai, Zhenghao Peng, Bolei Zhou

机构 * Computer Science Department, University of California, Los Angeles (UCLA)(加州大学洛杉矶分校计算机科学系)

Comments ICML 2025 Poster

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2506.08681 2025-06-12 cs.LG

Mitigating Reward Over-optimization in Direct Alignment Algorithms with Importance Sampling

Phuc Minh Nguyen, Ngoc-Hieu Nguyen, Duy H. M. Nguyen, Anji Liu, An Mai, Binh T. Nguyen, Daniel Sonntag, Khoa D. Doan

机构 * VinUniversity(文大学) VinUni-Illinois Smart Health Center(VinUni-伊利诺伊智能健康中心) University of Stuttgart(斯图加特大学) University of California Los Angeles (UCLA)(加州大学洛杉矶分校) International University - VNUHCM(国际大学 - VNUHCM) University of Science - VNUHCM(科学大学 - VNUHCM) German Research Center for Artificial Intelligence (DFKI)(德国人工智能研究中心) Oldenburg University(奥尔登堡大学) Max Planck Research School for Intelligent Systems (IMPRS-IS)(马克斯·普朗克智能系统研究学校)

Comments First version

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2506.03107 2025-06-12 cs.CV

ByteMorph: Benchmarking Instruction-Guided Image Editing with Non-Rigid Motions

Di Chang, Mingdeng Cao, Yichun Shi, Bo Liu, Shengqu Cai, Shijie Zhou, Weilin Huang, Gordon Wetzstein, Mohammad Soleymani, Peng Wang

机构 * ByteDance Seed(字节跳动种子) University of Southern California(南加州大学) University of Tokyo(东京大学) University of California Berkeley(加州大学伯克利分校) Stanford University(斯坦福大学) University of California Los Angeles(加州大学洛杉矶分校)

Comments Website: https://boese0601.github.io/bytemorph Dataset: https://huggingface.co/datasets/ByteDance-Seed/BM-6M Benchmark: https://huggingface.co/datasets/ByteDance-Seed/BM-Bench Code: https://github.com/ByteDance-Seed/BM-code Demo: https://huggingface.co/spaces/Boese0601/ByteMorph-Demo

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2407.10454 2025-06-12 cs.LG math.OC

Deflated Dynamics Value Iteration

Jongmin Lee, Amin Rakhsha, Ernest K. Ryu, Amir-massoud Farahmand

机构 * Seoul National University(首尔国立大学) University of Toronto(多伦多大学) University of California, Los Angeles(加州大学洛杉矶分校) Polytechnique Montréal(蒙特利尔大学) Mila - Quebec AI Institute(魁北克AI研究所)

Journal ref Transactions on Machine Learning Research 2025

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2406.14230 2025-06-12 cs.CL cs.AI cs.CY

Raising the Bar: Investigating the Values of Large Language Models via Generative Evolving Testing

Han Jiang, Xiaoyuan Yi, Zhihua Wei, Ziang Xiao, Shu Wang, Xing Xie

机构 * Tongji University(同济大学) Johns Hopkins University(约翰霍普金斯大学) University of California, Los Angeles(加州大学洛杉矶分校) Microsoft Research Asia(微软亚洲研究院)

Comments ICML 2025

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2506.08999 2025-06-11 cs.CL cs.AI

Employing self-supervised learning models for cross-linguistic child speech maturity classification

Theo Zhang, Madurya Suresh, Anne S. Warlaumont, Kasia Hitczenko, Alejandrina Cristia, Margaret Cychosz

机构 * Dept. of Computer Science, UCLA, USA(UCLA计算机科学系) Dept. of Linguistics, UCLA, USA(UCLA语言学系) Dept. of Linguistics, Stanford University, USA(斯坦福大学语言学系) Dept. of Communication, UCLA, USA(UCLA传播学系) Department of Computer Science George Washington University, USA(乔治华盛顿大学计算机科学系) Département d’études cognitives, ENS, France(法兰西综合理工学院认知研究系)

Comments To be published in Interspeech 2025. 5 pages, 2 figures. For associated Github repository, see https://github.com/spoglab-stanford/w2v2-pro-sm/tree/main/speechbrain/recipes/W2V2-LL4300-Pro-SM

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2506.08989 2025-06-11 cs.LG cs.CL

SwS: Self-aware Weakness-driven Problem Synthesis in Reinforcement Learning for LLM Reasoning

Xiao Liang, Zhong-Zhi Li, Yeyun Gong, Yang Wang, Hengyuan Zhang, Yelong Shen, Ying Nian Wu, Weizhu Chen

机构 * University of California Los Angeles(加州大学洛杉矶分校) School of Artificial Intelligence Chinese Academy of Sciences(中国科学院人工智能学院) Microsoft(微软) Tsinghua University(清华大学)

Comments Reinforcement Learning; Large Language Models; LLM Reasoning

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2506.08325 2025-06-11 stat.ML cs.LG stat.ME

Model-Free Kernel Conformal Depth Measures Algorithm for Uncertainty Quantification in Regression Models in Separable Hilbert Spaces

Marcos Matabuena, Rahul Ghosal, Pavlo Mozharovskyi, Oscar Hernan Madrid Padilla, Jukka-Pekka Onnela

机构 * Department of Biostatistics(生物统计学系) Harvard University(哈佛大学) Department of Epidemiology and Biostatistics(流行病学与生物统计学系) University of South Carolina(南卡罗来纳大学) LTCI Telecom Paris Institut Polytechnique de Paris(巴黎电信理工学院LTCI) UCLA(加州大学洛杉矶分校)

Comments arXiv admin note: substantial text overlap with arXiv:2405.13970

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2506.08006 2025-06-10 cs.CV

Dreamland: Controllable World Creation with Simulator and Generative Models

Sicheng Mo, Ziyang Leng, Leon Liu, Weizhen Wang, Honglin He, Bolei Zhou

机构 * University of California, Los Angeles(加州大学洛杉矶分校)

Comments Project Page: https://metadriverse.github.io/dreamland/

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2506.07116 2025-06-10 cs.AI

BRIGHT+: Upgrading the BRIGHT Benchmark with MARCUS, a Multi-Agent RAG Clean-Up Suite

Liyang Chen, Yujun Cai, Jieqiong Dong, Yiwei Wang

机构 * University of California, Los Angeles(加州大学洛杉矶分校) The University of Queensland(昆士兰大学) Central South University(中央南大学) University of California, Merced(加州大学默塞德分校)

Comments 8 pages, 7 figures, 4 tables. Submitted to EMNLP 2025

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2412.08595 2025-06-10 math.NA cs.LG cs.NA

Numerical Analysis of HiPPO-LegS ODE for Deep State Space Models

Jaesung R. Park, Jaewook J. Suh, Youngjoon Hong, Ernest K. Ryu

机构 * Mathematical Sciences CMOR(数学科学CMOR) Mathematical Sciences(数学科学) Mathematics(数学) Seoul National University(首尔国立大学) Rice University(里士满大学) UCLA(加州大学洛杉矶分校)

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2412.02535 2025-06-10 cs.LG cs.CR cs.MA math.AP

Defending Against Diverse Attacks in Federated Learning Through Consensus-Based Bi-Level Optimization

Nicolás García Trillos, Aditya Kumar Akash, Sixu Li, Konstantin Riedl, Yuhua Zhu

机构 * University of Wisconsin-Madison, Department of Statistics(威斯康星大学麦迪逊分校统计学系) Google(谷歌) University of Oxford, Mathematical Institute(牛津大学数学学院) University of California, Los Angeles, Department of Statistics and Data Science(加州大学洛杉矶分校统计学与数据科学系)

Journal ref Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, vol. 383, no. 2298, Jun. 2025

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2406.19580 2025-06-10 cs.AR cs.LG

FRED: Flexible REduction-Distribution Interconnect and Communication Implementation for Wafer-Scale Distributed Training of DNN Models

Saeed Rashidi, William Won, Sudarshan Srinivasan, Puneet Gupta, Tushar Krishna

机构 * Georgia Institute of Technology(佐治亚理工学院) Intel(英特尔) UCLA(加州大学洛杉矶分校)

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2506.06582 2025-06-10 cs.LG stat.ML

Demystifying Topological Message-Passing with Relational Structures: A Case Study on Oversquashing in Simplicial Message-Passing

Diaaeldin Taha, James Chapman, Marzieh Eidi, Karel Devriendt, Guido Montúfar

机构 * Max Planck Institute for Mathematics in the Sciences(马克斯·普朗克数学研究所) UCLA(加州大学洛杉矶分校) Center for Scalable Data Analytics and Artificial Intelligence(可扩展数据与人工智能中心) University of Oxford(牛津大学)

Comments 50 pages, 12 figures, published at ICLR 2025. The Thirteenth International Conference on Learning Representations. 2025

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2506.06244 2025-06-09 cs.LG eess.SP

Neural Responses to Affective Sentences Reveal Signatures of Depression

Aditya Kommineni, Woojae Jeong, Kleanthis Avramidis, Colin McDaniel, Myzelle Hughes, Thomas McGee, Elsi Kaiser, Kristina Lerman, Idan A. Blank, Dani Byrd, Assal Habibi, B. Rael Cahn, Sudarsana Kadiri, Takfarinas Medani, Richard M. Leahy, Shrikanth Narayanan

机构 * Ming Hsieh Department of Electrical and Computer Engineering(明希赫电气与计算机工程系) University of Southern California(南加州大学) Alfred E. Mann Department of Biomedical Engineering(阿尔弗雷德·E·曼生物医学工程系) Thomas Lord Department of Computer Science(托马斯·劳德计算机科学系) Brain and Creativity Institute(大脑与创造力研究所) Department of Psychology(心理学系) University of California Los Angeles(加州大学洛杉矶分校) Department of Linguistics(语言学系) Department of Psychiatry and Behavioral Sciences(精神病学与行为科学系)

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2505.04977 2025-06-04 cs.CR cs.AI

ChainMarks: Securing DNN Watermark with Cryptographic Chain

Brian Choi, Shu Wang, Isabelle Choi, Kun Sun

机构 * Johns Hopkins University(约翰霍普金斯大学) Palo Alto Networks, Inc.(帕洛阿尔托网络公司) University of California, Los Angeles(加州大学洛杉矶分校) George Mason University(乔治·马歇尔大学)

Comments Accepted In ACM ASIA Conference on Computer and Communications Security (ASIA CCS '25), August 25-29, 2025, Ha Noi, Vietnam

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2503.05037 2025-06-04 cs.CL cs.IR

Collapse of Dense Retrievers: Short, Early, and Literal Biases Outranking Factual Evidence

Mohsen Fayyaz, Ali Modarressi, Hinrich Schuetze, Nanyun Peng

机构 * University of California, Los Angeles(加州大学洛杉矶分校) CIS, LMU Munich(慕尼黑路德维希-马克西米利安大学计算机学院) Munich Center for Machine Learning(慕尼黑机器学习中心)

Comments ACL 2025 Main Conference

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2411.11479 2025-06-04 cs.CL

Value-Spectrum: Quantifying Preferences of Vision-Language Models via Value Decomposition in Social Media Contexts

Jingxuan Li, Yuning Yang, Shengqi Yang, Linfan Zhang, Ying Nian Wu

机构 * University of California, Los Angeles(加州大学洛杉矶分校) Los Alamos National Laboratory(洛斯阿拉莫斯国家实验室)

Comments ACL 2025 main

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2411.10596 2025-06-04 q-bio.NC cs.AI cs.CV stat.ML

A minimalistic representation model for head direction system

Minglu Zhao, Dehong Xu, Deqian Kong, Wen-Hao Zhang, Ying Nian Wu

机构 * Department of Statistics, UCLA(统计学系,加州大学洛杉矶分校) Lyda Hill Department of Bioinformatics, UT Southwestern Medical Center(Lyda Hill 生物信息学系,德克萨斯西南医学中心) O’Donnell Brain Institute, UT Southwestern Medical Center(奥登脑研究所,德克萨斯西南医学中心)

Comments Proceedings of the Annual Meeting of the Cognitive Science Society (CogSci 2025)

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2402.11089 2025-06-04 cs.CV cs.AI cs.CY

The Male CEO and the Female Assistant: Evaluation and Mitigation of Gender Biases in Text-To-Image Generation of Dual Subjects

Yixin Wan, Kai-Wei Chang

机构 * University of California, Los Angeles(加州大学洛杉矶分校)

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2309.13570 2025-06-04 cs.CV

Robust 6DoF Pose Estimation Against Depth Noise and a Comprehensive Evaluation on a Mobile Dataset

Zixun Huang, Keling Yao, Seth Z. Zhao, Chuanyu Pan, Allen Y. Yang

机构 * UC Berkeley(加州大学伯克利分校) CMU(卡内基梅隆大学) UCLA(加州大学洛杉矶分校)

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2506.01174 2025-06-03 cs.AI

GraphPad: Inference-Time 3D Scene Graph Updates for Embodied Question Answering

Muhammad Qasim Ali, Saeejith Nair, Alexander Wong, Yuchen Cui, Yuhao Chen

机构 * University of Waterloo(滑铁卢大学) University of California, Los Angeles(加州大学洛杉矶分校)

Comments CVPR 2025 Workshop on 3D-LLM/VLA: Bridging Language, Vision and Action in 3D Environments

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