Fangkai Yang

Pretrain Value, Not Reward: Decoupled Value Policy Optimization

DoVer: Intervention-Driven Auto Debugging for LLM Multi-Agent Systems

RePrompt: Reasoning-Augmented Reprompting for Text-to-Image Generation via Reinforcement Learning

Learning GUI Grounding with Spatial Reasoning from Visual Feedback

WarriorMath: Empowering Mathematical Reasoning for Large Language Models via Expert Battles

Learning to Refine: Self-Refinement of Parallel Reasoning in LLMs

Duet: Joint Exploration of User–Item Profiles

VEM: Environment-Free Exploration for Training GUI Agent with Value Environment Model

Thread: A Logic-Based Data Organization Paradigm for How-To Question Answering with Retrieval Augmented Generation

SELF-EVOLVED REWARD LEARNING FOR LLMS