collaborators

5 papers

cs.LG2026

Chasing Moving Targets with Online Self-Play Reinforcement Learning for Safer Language Models

Mickel Liu, Liwei Jiang, Yancheng Liang +4

Conventional large language model (LLM) safety alignment relies on a reactive, disjoint loop: attackers exploit a static model, then defenders patch exposed vulnerabilities. This s…

cs.AI2026

SPIRAL: Self-Play on Zero-Sum Games Incentivizes Reasoning via Multi-Agent Multi-Turn Reinforcement Learning

Bo Liu, Leon Guertler, Simon Yu +9

Recent advances in reinforcement learning have shown that language models can develop sophisticated reasoning through training on tasks with verifiable rewards, but these approache…

cs.LG2026

Learning to summarize user information for personalized reinforcement learning from human feedback

Hyunji Nam, Yanming Wan, Mickel Liu +3

As everyday use cases of large language model (LLM) AI assistants have expanded, it is becoming increasingly important to personalize responses to align to different users' prefere…

cs.CL2025

Artificial Hivemind: The Open-Ended Homogeneity of Language Models (and Beyond)

Liwei Jiang, Yuanjun Chai, Margaret Li +7

Language models (LMs) often struggle to generate diverse, human-like creative content, raising concerns about the long-term homogenization of human thought through repeated exposur…

cs.NI2025

AllReduce Scheduling with Hierarchical Deep Reinforcement Learning

Yufan Wei, Mickel Liu, Wenfei Wu

AllReduce is a technique in distributed computing which saw use in many critical applications of deep learning. Existing methods of AllReduce scheduling oftentimes lack flexibility…