collaborators

5 papers

cs.LG2026

When Non-Adversarial Noise Hurts Learning: Benchmarking Skill Self-Evolution in Agents

Tao Yu, Zhongtian Luo, Yuchen Long +19

Large language model agents increasingly improve by distilling experience into reusable skills, but errors in that experience can persist in learned rules and affect later tasks. E…

cs.LG2026

Co-RL: Unsupervised Reasoning Emerges from Diverse Cohort in Multi-agent RL

Yunhao Yang, Yuexin Bian, Yunjie Tian +6

Reinforcement learning (RL) has emerged as a powerful approach for improving reasoning in language and vision-language models, yet its strongest successes still depend heavily on g…

cs.CV2026

MedFM-Robust: Benchmarking Robustness of Medical Foundation Models

Xiangxiang Cui, Tianjin Huang, Yifang Wang +2

Medical foundation models have achieved remarkable clinical performance, yet their robustness under real-world perturbations remains underexplored. We present a robustness benchmar…

cs.LG2025

Infinite Sampling: Efficient and Stable Grouped RL Training for Large Language Models

Liangyu Wang, Huanyi Xie, Xinhai Wang +3

Group-based reinforcement learning algorithms such as Group Reward Policy Optimization (GRPO) have proven effective for fine-tuning large language models (LLMs) with human feedback…

cs.CL2025

The Compositional Architecture of Regret in Large Language Models

Xiangxiang Cui, Shu Yang, Tianjin Huang +3

Regret in Large Language Models refers to their explicit regret expression when presented with evidence contradicting their previously generated misinformation. Studying the regret…