How Numerical Precision Affects Mathematical Reasoning Capabilities of LLMs

• URL: http://arxiv.org/abs/2410.13857v1
• Date: Thu, 17 Oct 2024 17:59:35 GMT
• Title: How Numerical Precision Affects Mathematical Reasoning Capabilities of LLMs
• Authors: Guhao Feng, Kai Yang, Yuntian Gu, Xinyue Ai, Shengjie Luo, Jiacheng Sun, Di He, Zhenguo Li, Liwei Wang,
• Abstract summary: We identify numerical precision as a key factor that influences Transformer-based Large Language Models' effectiveness in mathematical tasks. Our results show that Transformers operating with low numerical precision fail to address arithmetic tasks, such as iterated addition and integer multiplication. In contrast, Transformers with standard numerical precision can efficiently handle these tasks with significantly smaller model sizes.
• Score: 69.55103380185612
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• Abstract: Despite the remarkable success of Transformer-based Large Language Models (LLMs) across various domains, understanding and enhancing their mathematical capabilities remains a significant challenge. In this paper, we conduct a rigorous theoretical analysis of LLMs' mathematical abilities, with a specific focus on their arithmetic performances. We identify numerical precision as a key factor that influences their effectiveness in mathematical tasks. Our results show that Transformers operating with low numerical precision fail to address arithmetic tasks, such as iterated addition and integer multiplication, unless the model size grows super-polynomially with respect to the input length. In contrast, Transformers with standard numerical precision can efficiently handle these tasks with significantly smaller model sizes. We further support our theoretical findings through empirical experiments that explore the impact of varying numerical precision on arithmetic tasks, providing valuable insights for improving the mathematical reasoning capabilities of LLMs.

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