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Yi-Hao Song

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#machine learning Preprint Sep 2026

Groupwise Agentic Grading and Advantage Redistribution for Code Agent RL

Reinforcement learning (RL) for code agents often uses executable tests to provide binary rewards. With these rewards, Group Relative Policy Optimization (GRPO) assigns identical advantages to test-passing trajectories within each rollout group, overlooking differences in implementation quality and adherence to task re...

Jin-Hao Dong, Liang Zhao, Zi-Hao Yue et al. · 1 citation

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