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English(EN) Your Group-Relative Advantage Is Biased

新方法解决 LLM 强化学习中的偏差问题

一篇新论文介绍了历史感知自适应难度加权 (HA-DW) 方法,以解决验证者奖励强化学习 (RLVR) 方法中的偏差问题,特别是用于 GRPO 等基于群体的方法。研究发现,当前方法可能低估了对困难提示的正确答案的权重,并对简单提示的错误答案处罚不足。HA-DW 旨在通过基于不断变化的难度锚点和训练动态的自适应重加权方案来纠正这些有偏差的优势估计。在数学推理基准上的实验表明,HA-DW 在与 GRPO 及其变体集成时能提高性能,表明其在更鲁棒的 RLVR 训练中起着关键作用。 AI

影响 提高了大型语言模型在推理任务中训练的鲁棒性和效率。

排序理由 该集群包含一篇详细介绍改进 LLM 训练新方法的论文。[lever_c_demoted from research: ic=1 ai=1.0]

在 arXiv cs.LG 阅读 →

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新方法解决 LLM 强化学习中的偏差问题

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该集群包含一篇详细介绍改进 LLM 训练新方法的论文。[lever_c_demoted from research: ic=1 ai=1.0]
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完整方法见我们的编辑标准。

报道来源 [1]

  1. arXiv cs.LG TIER_1 English(EN) · Fengkai Yang, Zherui Chen, Xiaohan Wang, Xiaodong Lu, Jiajun Chai, Guojun Yin, Wei Lin, Shuai Ma, Fuzhen Zhuang, Deqing Wang, Yaodong Yang, Jianxin Li, Yikun Ban ·

    Your Group-Relative Advantage Is Biased

    arXiv:2601.08521v3 Announce Type: replace Abstract: Reinforcement Learning from Verifier Rewards (RLVR) has emerged as a widely used approach for post-training large language models on reasoning tasks, with group-based methods such as GRPO and its variants gaining broad adoption.…