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Guangwei Zhang

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Preprint Oct 2026

Which Agent's Skill Should Change? Group-Relative Credit Assignment for Evolving Multi-Agent Teams

Cooperative language-model agents can improve without weight updates by revising reusable skills, but only if a shared team reward is traced to the responsible agent and skill. Existing methods credit the skills present in each trajectory, yet presence is not responsibility: a harmful skill active in successful runs st...

Ya-Nan Ma, Yang Wang, David Le et al. · 0 citations
Book Open access Aug 2026

Evidencing LLM Misuse: A Hands-on Forensic Tutorial on Copyright Infringement and Plagiarism Detection

This tutorial presents a unified forensic perspective on LLM content misuse, combining hands-on copyright-risk auditing with a flexible plagiarism module, and equips attendees with practical and conceptual tools for auditing black-box models, interpreting similarity evidence, and understanding content misuse beyond sim...

Deng-Hui Zhang, Guangwei Zhang, Dongwon Lee · 0 citations

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