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Author

Huaiyu Wan

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Preprint Aug 2026

MileGPO: Milestone Inference with Local Evidence for Graph-Based Policy Optimization of Long-Horizon LLM Agents

MileGPO (Milestone Inference with Local Evidence for Graph-Based Policy Optimization) is proposed, which derives process-level credit from grouped on-policy rollouts through three designs and indicates that reliability weighting, local progress, and same-state branch evidence complement milestone discovery and resolve...

Bo Qian, Yuting Wu, Shuang Zeng et al. · 1 citation

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