Author

Zheng-Yu Chen

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#artificial intelligence Review Sep 2026

RankEvolve: A Reliable Multi-Agent Auto-Research Harness for Evolving Ranking Models

Auto-research agents, LLM systems that propose, implement, train, and evaluate model changes across iterations, promise to automate applied ML's experimental loop. Over long horizons, execution accuracy is a binding constraint: a change can silently leak held-out data, omit normalization, disconnect a gradient, or leav...

Zheng-Yu Chen, Lin-Feng Liu, Hong Li et al. · 0 citations

#artificial intelligence Preprint Sep 2026

DivOPD: Spread Wide, Look Close for Asynchronous On-Policy Distillation of Multi-turn Agents

On-policy distillation (OPD) trains student agents through teacher supervision on their own interactions with an environment. However, in asynchronous multi-turn training, arrival-order batching can allow a few early or long rollouts to dominate learner updates while other valid rollouts become stale before being used,...

Han-Yang Wang, Ze-Yuan Liu, Zheng-Yu Chen et al. · 0 citations