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Author

Yao-Rui Shi

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#artificial intelligence Preprint Oct 2026

Matched-Context Group Policy Optimization for LLM Agent Training

Training long-horizon language model agents requires assigning credit to intermediate decisions from sparse terminal feedback. Within a finite group of sibling rollouts, useful action comparisons depend on their context, evidence for both alternatives, and how that evidence enters learning. We propose Matched-Context G...

Chen-Xu Zhang, Yao-Rui Shi, Wen-Long Zhang et al. · 0 citations
#artificial intelligence Preprint Sep 2026

PluginRSI: Recursive Improvement of Agent Harnesses with Reusable Plugins

This work introduces PluginRSI, which represents a harness as a composition of atomized plugins and organizes harness evolution around these plugins, and shows that accumulating reusable mechanisms provides an effective basis for continued harness improvement.

Yao-Rui Shi, Yu-Chun Miao, Yu-Xin Chen et al. · 0 citations

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