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arXiv 2602.07594cs.CLcs.AI
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学习自我验证使语言模型更擅长推理

Learning to Self-Verify Makes Language Models Better Reasoners

National University of Singapore(新加坡国立大学);University of Science and Technology of China(中国科学技术大学);Beijing University of Posts and Telecommunications(北京邮电大学)

Yuxin Chen, Yu Wang, Yi Zhang, Ziang Ye, Zhengzhou Cai, Yaorui Shi, Qi Gu, Hui Su, Xunliang Cai, Xiang Wang, An Zhang, Tat-Seng Chua

AI总结:

通过自我验证学习提升语言模型的推理能力,有效提高生成和验证性能。

摘要:

最近的大型语言模型(LLMs)在生成复杂任务中具有很强的推理路径生成能力。然而,尽管具有强大的生成能力,LLMs在验证自身答案方面仍然薄弱,揭示了生成与自我验证之间持续存在的能力不对称性。在本工作中,我们深入研究了这种不对称性在整个训练演变过程中的表现,并发现即使在相同任务上,提高生成能力也不一定会带来相应的自我验证能力提升。有趣的是,我们发现这种不对称性的反方向行为有所不同:学习自我验证可以有效提高生成性能,实现与标准生成训练相当的准确性,同时产生更高效和有效的推理轨迹。基于这一观察,我们进一步探索通过制定多任务强化学习框架将自我验证整合到生成训练中,其中生成和自我验证作为两个独立但互补的目标进行优化。在广泛基准和模型上的实验表明,在生成和验证能力上均优于仅生成训练的性能。

英文摘要:

Recent large language models (LLMs) achieve strong performance in generating promising reasoning paths for complex tasks. However, despite powerful generation ability, LLMs remain weak at verifying their own answers, revealing a persistent capability asymmetry between generation and self-verification. In this work, we conduct an in-depth investigation of this asymmetry throughout training evolution and show that, even on the same task, improving generation does not lead to corresponding improvements in self-verification. Interestingly, we find that the reverse direction of this asymmetry behaves differently: learning to self-verify can effectively improve generation performance, achieving accuracy comparable to standard generation training while yielding more efficient and effective reasoning traces. Building on this observation, we further explore integrating self-verification into generation training by formulating a multi-task reinforcement learning framework, where generation and self-verification are optimized as two independent but complementary objectives. Extensive experiments across benchmarks and models demonstrate performance gains over generation-only training in both generation and verification capabilities.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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