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Jingbo Shang

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Jul 2026

RRPO: Reference-Relative Policy Optimization with Stratified Conditional Rollouts

Group Relative Policy Optimization (GRPO) has shown strong effectiveness in reinforcement learning from verifiable feedback, where sampled rollouts can be compared within a group using task-provided correctness signals. However, extending group-relative optimization beyond verifiable settings is challenging because suc...

Yuxin Xiong, Xun-Yi Jiang, Rohan Surana et al. · 0 citations

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