collaborators

5 papers

cs.LG2026

Enhancing Reinforcement Learning Fine-Tuning with an Online Refiner

Hao Ma, Zhiqiang Pu, Yang Liu +1

Constraints are essential for stabilizing reinforcement learning fine-tuning (RFT) and preventing degenerate outputs, yet they inherently conflict with the optimization objective b…

cs.LG2026

Efficient Soft Actor-Critic with LLM-Based Action-Level Guidance for Continuous Control

Hao Ma, Zhiqiang Pu, Xiaolin Ai +1

We present GuidedSAC, a novel reinforcement learning (RL) algorithm that facilitates efficient exploration in vast state-action spaces. GuidedSAC leverages large language models (L…

cs.LG2025

OMoE: Diversifying Mixture of Low-Rank Adaptation by Orthogonal Finetuning

Jinyuan Feng, Zhiqiang Pu, Tianyi Hu +3

Building mixture-of-experts (MoE) architecture for Low-rank adaptation (LoRA) is emerging as a potential direction in parameter-efficient fine-tuning (PEFT) for its modular design…

cs.AI2025

Coevolving with the Other You: Fine-Tuning LLM with Sequential Cooperative Multi-Agent Reinforcement Learning

Hao Ma, Tianyi Hu, Zhiqiang Pu +4

Reinforcement learning (RL) has emerged as a pivotal technique for fine-tuning large language models (LLMs) on specific tasks. However, prevailing RL fine-tuning methods predominan…

cs.AI2025

Vision-Based Generic Potential Function for Policy Alignment in Multi-Agent Reinforcement Learning

Hao Ma, Shijie Wang, Zhiqiang Pu +2

Guiding the policy of multi-agent reinforcement learning to align with human common sense is a difficult problem, largely due to the complexity of modeling common sense as a reward…