Author

Xiaochuan Yan

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Book Open access Oct 2026

FAiLGen: Calibrating LLM for Failing Test Generation with Monte Carlo Tree Search

Failing test generation is an important yet challenging task in software engineering. It involves searching a vast space to identify fault-triggering test inputs and the oracles that assert these faulty executions. Several approaches have been proposed for generating failing tests. Specifically, given a program-under-t...

Tsz-On Li, Xiao-Chuan Yan, De-Hui Yi et al. · Proceedings of the 41st IEEE... · 0 citations

Review Aug 2026

Beyond Fault Localization: A Trajectory-Level Study of LLM Agents for Microservice Root Cause Analysis

DiagGuard is operationalized as DiagGuard, a two-stage defense-in-depth architecture in which grounding surveys available observations before localization and verification audits the diagnosis against them, showing that trajectory-level evaluation exposes limitations hidden by final-answer metrics and provides actionab...

Qisheng Lu, Ao-Yang Fang, Junjielong Xu et al. · 0 citations