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Quoc-Vinh Lai-Dang

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#artificial intelligence Preprint Sep 2026

HISPO: Hierarchical Importance-Sampling Policy Optimization with Entropy-Derived Segments

HISPO is introduced, a segment-level policy-optimization method that constructs rollout-time entropy-derived contiguous segments, assigns soft entropy-based saliency weights, and applies clipped importance-sampling correction at the segment granularity, suggesting that segment-level correction is a promising granularit...

Quoc-Vinh Lai-Dang, Hyo-Sang Shin · 0 citations