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Yi-Fan Guo

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#machine learning Preprint Oct 2026

MECHVAR: Variance-Guided Mechanism Discrimination for Autonomous Machine Learning Experiment Selection

Benchmark gains are often mechanism-ambiguous: reproducing an improvement does not by itself identify why it occurs. We study finite-library mechanism discrimination, where posterior-weighted candidate mechanisms, executable probes, and a limited experimental budget define a sequential experiment-selection problem. MEC...

Yi-Fan Guo · 0 citations
#machine learning Preprint Oct 2026

Evidence-Gated Research: Statistically Controlled Model Adoption in Adaptive Search

Adaptive model search is path dependent: once a challenger is adopted, it becomes the reference from which later candidates are generated. A statistically unsupported replacement can therefore alter hypotheses that have not yet been proposed. We introduce Evidence-Gated Research (EGR), a statistical adoption layer for...

Yi-Fan Guo · 0 citations
Review Aug 2026

TRACE-Memory: Public-Conditioned Retrieval and Utility-Aware Evidence Admission for Personalized Generation

TRACE-Memory is proposed, a two-stage framework for selective personalization that consistently outperforms random and lexical memory use, improves over semantic retrieval, remains competitive with frontier-LLM memory pipelines as local generator capacity increases, and conditions evidence admission on public-context s...

Jing Wang, Zhuyuan Wang, Yi-Fan Guo et al. · 0 citations

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