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arxiv_cs_lg ยท May 27, 2026 ยท paper

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Single-Rollout Hidden-State Dynamics for Training-Free RLVR Data Selection

arxiv.orgMay 27, 2026
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In brief

Reinforcement learning with verifiable rewards (RLVR) can yield large reasoning gains from very few training instances, yet its strong sensitivity to which instances are used makes data selection a central bottleneck....

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