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Xi Wang

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#artificial intelligence Preprint Aug 2026

Efficient RLVR Scheduling via Graph-Structured Online Difficulty Estimation

A plug-and-play graph-based online difficulty estimator that shares rollout feedback across related samples and continuously updates their difficulty estimates, mitigating cold start and staleness without dedicated probing is proposed.

Zhizhao Liu, Zhiliang Tian, Xi Wang et al. · 0 citations