الباحثون

Yi Xie

المنشورات 3

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Bayes-Sufficient Compression Is Not Enough: How Does Communication Help Multi-Agent Systems?

Yi Xie, Zhanke Zhou, Yi Fan وآخرون · 2026

Multi-agent LLM systems pair a sender with broad context and an executor with a limited local view. We study when a short message improves the executor's next decision, when raw context is preferable, and when a stronger sender helps. Our framework, \emph{receiver-relative bounded coordination}, expresses message utili …

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ImpossibleRubrics: Stress-Testing Generated Rubrics as Reward Signals

Bowen Qin, Yi Xie, Yesheng Liu وآخرون · 2026

Language model-generated rubrics are increasingly used as reward signals for rubric-based reinforcement learning, LLM-as-a-judge evaluation, and automated grading. Such rubrics are reliable only if they reward honest answers over adversarial answers optimized to exploit them. Yet their robustness to such optimization r …

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