collaborators

5 papers

cs.LG2026

Agentic Reinforcement Learning with Self-Distilled Reward Shaping

Ranxu Zhang, Guinan Chen, Chenshaodong +5

Agentic reinforcement learning enables LLM agents to learn through interaction, but sparse trajectory-level rewards reveal success without identifying which intermediate decisions…

cs.CL2026

From Correctness to Preference: A Framework for Personalized Agentic Reinforcement Learning

Ranxu zhang, zeyang li, Jiacheng Huang +5

Agentic reinforcement learning (Agentic RL) has achieved strong progress in tasks with clear success signals. However, many real-world agent applications require user-conditioned b…

cs.CL2026

Mem-: Adaptive Memory through Learning When and What to Generate

Xiaoqiang Wang, Chao Wang, Hadi Nekoei +5

We present Mem-, a framework for adaptive memory in large language model (LLM) agents, where useful guidance is generated on demand rather than retrieved from external memory st…

cs.LG2024

UserSumBench: A Benchmark Framework for Evaluating User Summarization Approaches

Chao Wang, Neo Wu, Lin Ning +5

Large language models (LLMs) have shown remarkable capabilities in generating user summaries from a long list of raw user activity data. These summaries capture essential user info…

cs.CL2024

RLPF: Reinforcement Learning from Prediction Feedback for User Summarization with LLMs

Jiaxing Wu, Lin Ning, Luyang Liu +7

LLM-powered personalization agent systems employ Large Language Models (LLMs) to predict users' behavior from their past activities. However, their effectiveness often hinges on th…