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Xiaowei Huang

3 papers indexed

arxivcs.AI2026-07-18

Beyond Semantic Equivalence: Logical Graphs for LLM Uncertainty Quantification

Yanni Dong, Minghua Liu, Meiling Zhu, Xiaowei Huang, Lijun Zhang

Large Language Models (LLMs) often produce confidently stated yet unreliable outputs, posing critical challenges for deployment in safety-sensitive applications. Existing uncertainty metrics such as semantic entropy capture agreement at the level of semantic equivalence, but larg…

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arxivcs.SEcs.AIcs.CL2026-07-02

SkillFuzz: Fuzzing Skill Composition for Implicit Intents Discovery in Open Skill Marketplaces

Jinwei Hu, Yi Dong, Youcheng Sun, Xiaowei Huang

Large Language Model (LLM)-based agents increasingly automate software engineering tasks through reusable skills, natural-language instruction documents that guide planning and execution. Open skill marketplaces enable users to assemble agents by co-activating community-contribut…

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arxivcs.AIcs.LG2026-06-28

SCARCE: Scalable Cascade Analysis for Rare-event Characterisation via Embeddings

Yingjie Wang, Yi Dong, Edmund Lau, Jie Meng, Taylor T Johnson, Xiaowei Huang

Rare events govern the safety profile of modern AI systems, yet their probabilities are extremely difficult to estimate: direct Monte Carlo requires prohibitive sample budgets. Subset Simulation (SS) addresses this by decomposing a rare-event probability into moderate conditional…

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