A Hopfieldian View-based Interpretation for Chain-of-Thought Reasoning

• URL: http://arxiv.org/abs/2406.12255v1
• Date: Tue, 18 Jun 2024 04:07:13 GMT
• Title: A Hopfieldian View-based Interpretation for Chain-of-Thought Reasoning
• Authors: Lijie Hu, Liang Liu, Shu Yang, Xin Chen, Hongru Xiao, Mengdi Li, Pan Zhou, Muhammad Asif Ali, Di Wang,
• Abstract summary: Chain-of-Thought (CoT) holds a significant place in augmenting the reasoning performance for large language models. We propose a Read-and-Control approach for controlling the accuracy of CoT.
• Score: 48.51969964676017
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: Chain-of-Thought (CoT) holds a significant place in augmenting the reasoning performance for large language models (LLMs). While some studies focus on improving CoT accuracy through methods like retrieval enhancement, yet a rigorous explanation for why CoT achieves such success remains unclear. In this paper, we analyze CoT methods under two different settings by asking the following questions: (1) For zero-shot CoT, why does prompting the model with "let's think step by step" significantly impact its outputs? (2) For few-shot CoT, why does providing examples before questioning the model could substantially improve its reasoning ability? To answer these questions, we conduct a top-down explainable analysis from the Hopfieldian view and propose a Read-and-Control approach for controlling the accuracy of CoT. Through extensive experiments on seven datasets for three different tasks, we demonstrate that our framework can decipher the inner workings of CoT, provide reasoning error localization, and control to come up with the correct reasoning path.

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