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English(EN) Trust the Critic More

新的AC2算法通过更信任批评者来更快地训练LLM

研究人员开发了一种名为AC2的新型actor-critic算法,旨在提高使用强化学习训练大型语言模型(LLM)的效率。与需要将轨迹一直执行到最终奖励的标准方法不同,AC2将信用分配给“动作块”,并使用学习到的批评者对这些片段进行评分。这种方法允许策略在不观察到完整最终奖励的情况下进行更新,从而显著降低了计算成本。该方法在Qwen3-4B上进行了测试,在IMO-ProofBench基准测试中,与GRPO相比,其表现更优,以显著更少的解码FLOPs和训练步数获得了更高的验证分数。 AI

影响 这项新算法可以显著降低训练大型语言模型的计算成本和所需时间,从而可能加速该领域的研发。

排序理由 详细介绍LLM训练新算法的学术论文。[lever_c_demoted from research: ic=1 ai=1.0]

在 arXiv cs.AI 阅读 →

AI 生成摘要 · Google Gemini · 来自 1 个来源。 我们如何撰写摘要 →

新的AC2算法通过更信任批评者来更快地训练LLM

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详细介绍LLM训练新算法的学术论文。[lever_c_demoted from research: ic=1 ai=1.0]
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报道来源 [1]

  1. arXiv cs.AI TIER_1 English(EN) · Kaiyue Wen, Luke Bailey, Arvind Mahankali, Tengyu Ma ·

    更信任批评者

    arXiv:2609.39247v1 Announce Type: cross Abstract: Standard language model RL algorithms credit every token of a long rollout with the same advantage determined by the terminal reward. Actor-critic methods can provide finer-grained credit assignment, but learned critics are genera…