Author

Chuxue Cao

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#artificial intelligence Preprint Sep 2026

LexAgentHallu: A Hierarchical Benchmark for Profiling Hallucinations in Legal Agents

Evaluation across 18 proprietary and open-source agents uncovers a Right-Answer-Wrong-Reason effect and reveals that hallucination subclasses cluster rather than scatter, forming distinct agentic framework, legal task, and category profiles validate the diagnostic power of LexAgentHallu for evaluating agentic hallucina...

Yu-Jin Zhou, Min Zheng, Chuxue Cao et al. · 0 citations

Preprint Aug 2026

SkillProx: Self-Evolving Agent Skills via Proximal Textual Gradient Descent

SkillProx is introduced, a proximal-gradient-inspired forward--backward framework that couples closed-loop diagnostic evolution with utility-aware proximal refinement and demonstrates the complementary effects of closed-loop diagnosis and proximal refinement.

Mingxuan Zheng, Yu-Jin Zhou, Chuxue Cao et al. · 2 citations