When Chain-of-Thought Helps and When It Hurts: An Empirical Investigation of the Serial-Depth Bottleneck in LLM Reasoning
思维链(CoT)何时有助、何时有害:大语言模型推理中序列深度瓶颈的实证研究
机构 * Vistula University(维斯图拉大学)
专题命中 数学推理 :CoT(title_cn,summary_cn);reasoning(title,abstract);chain-of-thought(title,abstract);分类 cs.CL、cs.AI、cs.LG
AI总结 该研究通过实证发现,思维链(CoT)是带宽旁路而非通用推理增强器,在高深度推理任务中可提升大语言模型准确率,在浅层任务中冗余,其效果与任务序列深度、模型规模相关。
Comments 15 pages, 3 figures, 5 tables. Pre-registered study (OSF: https://osf.io/92jdk). Data and code: https://osf.io/hteuj