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Lu Cheng
Researcher
PaperDiagnosing Multi-step Reasoning Failures in Black-box LLMs via Stepwise Confidence AttributionAuthorship / preprint / 2026Xiaoou LiuCo-authorship / ResearcherTiejin ChenCo-authorship / ResearcherYaqing WangCo-authorship / ResearcherDengjia ZhangCo-authorship / ResearcherHua WeiCo-authorship / ResearcherTopicComputation and LanguageWorks on / 14115 worksTopicArtificial IntelligenceWorks on / 22915 works