Lei Feng

Papers on Lattice

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Publication activitypapers/week, last 8 weeks

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RLHF & Preference Learning (1)Tool Use & Agents (1)

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Xin Cheng (1)Shuo He (1)Lang Feng (1)HaiYang Xu (1)

Papers (1)

May 26, 2026

Xin Cheng +52w ago

Beyond Trajectory-Level Attribution: Graph-Based Credit Assignment for Agentic Reinforcement Learning

Don't let valuable steps in failed trajectories go unnoticed: GraphGPO leverages state-transition graphs for fine-grained credit assignment in agentic RL, boosting performance and efficiency.

Xin Cheng, Shuo He, Lang Feng +3

RLHF & Preference Learning Tool Use & Agents

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Lei Feng

Publication activitypapers/week, last 8 weeks

Research focus

Frequent co-authors

Papers (1)