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Yi-Zhi Liu

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Preprint Aug 2026

DiagLoop: A Counterfactual Data Flywheel with Stage-Localized Reinforcement for Diagnostic LLMs

DiagLoop is presented, a counterfactual data flywheel that converts codified physical relations or clinical guidelines, authored once per mechanism family, into training supervision beyond recorded cases, and improves strict path correctness over the strongest conventional baseline.

Jian Zhang, Bing-Yi Wang, Yi-Zhi Liu · 0 citations
#machine learning Preprint Aug 2026

CoEvo: Oracle-Grounded Self-Evolution of a Single Model for Multi-Step Causal Reasoning

CoEvo is an oracle-grounded self-evolution framework where a single model alternates between Proposer and Solver, and enables an 8B LLM to sustain self-evolution, surpassing distillation baselines and the strongest proprietary reference on path correctness.

Jian Zhang, Bing-Yi Wang, Yi-Zhi Liu · 0 citations

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