Author

Thi Duyen Ngo

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Preprint Aug 2026

SpecRoll: Fast-Slow Verifier-Feedback Adaptation for Speculative Reinforcement Learning Rollouts

This work introduces SpecRoll, a speculative rollout engine that preserves the target model's sampling distribution while adapting at two timescales, and combines concurrency-aware sparse-tree verification and exact target verification, leaving the target rollout distribution and GRPO objective unchanged.

Nhật Minh Phạm, Duy-Tung Doan, Thi Duyen Ngo et al. · 0 citations