University of California, Berkeley（加州大学伯克利分校）

The FID Lottery: Quantifying Hidden Randomness in Generative-Model Evaluation

FID 彩票：量化生成模型评估中的隐藏随机性

Nicolas Dufour, Alexei A. Efros, Patrick Pérez

机构 * Kyutai ； UC Berkeley（加州大学伯克利分校） 纠错

AI总结 研究FID作为随机变量在训练和生成种子上的方差，发现重训练比重采样导致更大FID波动，提出新评估协议：使用每类最优引导、报告多个训练种子的误差条。

Comments Website: https://kyutai.org/fid-lottery

VIMPO: Value-Implicit Policy Optimization for LLMs

VIMPO: 值隐式策略优化用于大语言模型

Zhewei Kang, Aosong Feng, Sergey Levine, Dawn Song, Xuandong Zhao

机构 * UC Berkeley（加州大学伯克利分校） ； Yale University（耶鲁大学） 纠错

AI总结 提出VIMPO方法，通过KL正则化强化学习的最优条件导出策略隐含值函数，无需训练评论家，实现细粒度信用分配，在数学推理基准上优于GRPO。

ENPIRE: Agentic Robot Policy Self-Improvement in the Real World

ENPIRE: 现实世界中智能体机器人策略的自我改进

Wenli Xiao, Jia Xie, Tonghe Zhang, Haotian Lin, Letian "Max" Fu, Haoru Xue, Jalen Lu, Yi Yang, Cunxi Dai, Zi Wang, Jimmy Wu, Guanzhi Wang, S. Shankar Sastry, Ken Goldberg, Linxi "Jim" Fan, Yuke Zhu, Guanya Shi

机构 * NVIDIA（英伟达） ； CMU（卡内基梅隆大学） ； UC Berkeley（加州大学伯克利分校） 纠错

AI总结 提出ENPIRE框架，通过环境重置、策略执行、结果验证和迭代优化的闭环反馈，使编码智能体自主改进机器人操作策略，在灵巧操作任务上达到99%成功率。

Multi-Agent Transactive Memory

多智能体交互记忆

To Eun Kim, Xuhong He, Dishank Jain, Ambuj Agrawal, Negar Arabzadeh, Fernando Diaz

机构 * Carnegie Mellon University（卡内基梅隆大学） ； University of California, Berkeley（加州大学伯克利分校） 纠错

AI总结 提出MATM框架，通过共享存储和检索智能体轨迹，实现异构智能体群体间的知识复用，提升下游任务性能并减少交互步骤。

Reliability without Validity: A Systematic, Large-Scale Evaluation of LLM-as-a-Judge Models Across Agreement, Consistency, and Bias

无效度的可靠性：LLM-as-a-Judge 模型在一致性、稳定性和偏差上的系统性大规模评估

Justin D. Norman, Michael U. Rivera, D. Alex Hughes

机构 * UC Berkeley School of Information（加州大学伯克利分校信息学院） 纠错

AI总结 本研究通过大规模系统性评估（21个裁判模型、118次运行、约54.1万次判断），发现LLM-as-a-Judge在一致性、稳定性和偏差方面存在普遍问题，包括kappa通缩、排名偏移、高重测信度与严重位置偏差并存，并提出了最小可行验证协议。

Playful Agentic Robot Learning

趣味性具身机器人学习

Junyi Zhang, Jiaxin Ge, Hanjun Yoo, Letian Fu, Zihan Yang, Yaowei Liu, Raj Saravanan, Shaofeng Yin, Justin Yu, Dantong Niu, Zirui Wang, Roei Herzig, Ken Goldberg, Yutong Bai, David M. Chan, Ion Stoica, Angjoo Kanazawa, Jiahui Lei, Haiwen Feng, Trevor Darrell

机构 * University of California, Berkeley（加州大学伯克利分校） ； Impossible Research 纠错

AI总结 提出RATs框架，让机器人通过自主探索学习可复用技能，在LIBERO-PRO和MolmoSpaces上分别提升20.6和17.0个百分点。

Comments Project page: https://playful-rats.github.io/

Beyond Averaging in John Ellipsoid Approximation: High-Accuracy Algorithms in the Leverage-Score Model

超越John椭球逼近中的平均化：杠杆分数模型中的高精度算法

Xiaoyu Li, Junwei Yu, Jiaojiao Jiang, Junbin Gao, Andi Han

机构 * University of New South Wales（新南威尔士大学） ； University of California, Berkeley（加州大学伯克利分校） ； University of Sydney（悉尼大学） 纠错

AI总结 本文分离了John椭球逼近算法中的认证、识别和精度三种成本，证明精度依赖仅为双对数，并提出了加速方法和阻尼牛顿法，在杠杆分数模型中实现了高精度逼近。

Review of Machine Learning Models for Solar Energetic Particle Prediction

太阳高能粒子预测的机器学习模型综述

Spiridon Kasapis, Pouya Hosseinzadeh, Kathryn Whitman, Ricky Egeland, Manolis Georgoulis, Angelos Vourlidas, Athanasios Papaioannou, Eleni Lavasa, Anastasios Anastasiadis, Giorgos Giannopoulos, Andres Munoz-Jaramillo, Bala Poduval, Irina N. Kitiashvili, Alexander G. Kosovichev, Viacheslav Sadykov, Soukaina Filali Boubrahimi, Tate T. Hutchins, Hameedullah A. Farooki, Manuel E. Cuesta, Leng Y. Khoo, Sungmin Pak, Robert Czarnota, Jamie S. Rankin, Jamey Szalay, Mitchell M. Shen, Georgios Livadiotis, Zigong Xu, David J. McComas, Nikolaos Sarlis, Dionissios Hristopulos, Arik Posner, Alec J. Engell, Mohammed AbuBakr Ali, Ali G. A. Abdelkawy, Abdelrazek M. K. Shaltout, M. M. Beheary, Christina O. Lee, Sigiava Aminalragia-Giamini, Constantinos Papadimitriou, Ingmar Sandberg, Savvas Raptis, Shah Muhammad Hamdi, Monica Laurenza, Mirko Stumpo, Sumanth A. Rotti, India Jackson, Aatiya Ali, Atilim Gunes Baydin, Nathan Schwadron, Subhamoy Chatterjee, Maher A. Dayeh, Gelu M. Nita, Patrick M. O'Keefe, Chun Jie Chong, Paul Kosovich, Russell D. Marroquin, Berkay Aydin, Petrus C. Martens, Lulu Zhao, Yang Chen, Yian Yu, Monica G. Bobra, Ward Manchester, Tamas Gombosi, Ming Zhang, Jesse Torres, Philip K. Chan, Mohamed Nedal, Kamen Kozarev, Peijin Zhang, Kimberly Moreland, Hazel M. Bain, Samuel Hart, Michael J. Starkey, Alan G. Ling, Simone Benella

机构 * Department of Astrophysical Sciences, Princeton University, Princeton, NJ, USA ； Computational Physics Branch, NASA Ames Research Center, Moffett Field, CA, USA ； Department of Computer Science, Utah State University, Logan, UT, USA ； Space Radiation Analysis Group, NASA Johnson Space Center, Houston, TX, USA ； Johns Hopkins Applied Physics Lab, 11100 Johns Hopkins Rd, Laurel, MD 20723, United States ； Research Center for Astronomy ； Applied Mathematics of the Academy of Athens, 4 Soranou Efesiou Street, Athens 11527, Greece ； Institute for Astronomy, Astrophysics, Space Applications ； Southwest Research Institute, Boulder, CO, USA ； Space Science Center, University of New Hampshire, Durham, NH, USA ； Department of Physics, New Jersey Institute of Technology, Newark, NJ, USA ； Astronomy Department, Georgia State University, Atlanta, GA, USA ； Department of Computer Science, Princeton University, Princeton, NJ, USA ； Department of Mathematics, Rowan University, Glassboro, NJ, USA ； Astronomy, California Institute of Technology, Pasadena, CA, USA ； Department of Physics, National ； Kapodistrian University of Athens, Athens, Greece ； School of Electrical ； Computer Engineering, Technical University of Crete, Chania, Greece ； Department of Astronomy ； Meteorology, Faculty of Science, Al-Azhar University, Cairo, Egypt ； Space Sciences Lab, University of California, Berkeley, CA, USA ； Research Consultancy, Athens, Greece ； Institute for Space Astrophysics ； Department of Physics ； Astronomy, Georgia State University, Atlanta, GA 30303, USA ； Aryabhatta Research Institute of Observational Sciences (ARIES), Manora Peak, Nainital-263001, Uttarakhand, India ； Department of Computer Science, Oxford University, Oxford, England ； Southwest Research Institute, San Antonio, TX, USA ； Computer Science Department, New Jersey Institute of Technology, Newark, NJ, USA ； Department of Physics, University of California San Diego, La Jolla, CA 92093, USA ； Department of Computer Science, Georgia State University, Atlanta, GA 30303, USA ； Department of Climate ； Engineering, University of Michigan, Ann Arbor, MI, USA ； Department of Statistics, University of Michigan, Ann Arbor, MI, USA ； Department of Electrical Engineering ； Computer Science, Florida Institute of Technology, Melbourne, FL, USA ； Astrophysics Section, School of Cosmic Physics, Dublin Institute for Advanced Studies, DIAS Dunsink Observatory, Dublin D15 XR2R, Ireland ； Institute of Astronomy of the Bulgarian Academy of Sciences, Sofia, Bulgaria ； Center for Solar-Terrestrial Research, New Jersey Institute of Technology, Newark, NJ 07102, USA ； Cooperative Programs for the Advancement of Earth System Science, University Corporation for Atmospheric Research, Boulder, CO, USA ； CIRES, University of Colorado Boulder, Boulder, CO, USA ； Space Weather Prediction Center, NOAA, Boulder, CO, USA ； Astronomy, College of Science, The University of Texas at San Antonio, San Antonio, TX, USA ； Space Weather Prediction Center, National Oceanic ； The University of Texas at San Antonio, San Antonio, TX, USA ； Environmental Research, Inc., MA, USA 纠错

AI总结 综述了用于太阳高能粒子预测的机器学习模型，包括数据集、架构、输入输出比较，并提出了未来研究建议。

Comments Review Paper, Maine text: 23 pages, References: 5 pages, Appendix: 42 pages