Physics of Language Models: Part 2.1, Grade-School Math and the Hidden Reasoning Process

Fuente: arXiv
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Auteurs principaux: Ye, Tian, Xu, Zicheng, Li, Yuanzhi, Allen-Zhu, Zeyuan
Format: Preprint
Publié: 2024
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author Ye, Tian
Xu, Zicheng
Li, Yuanzhi
Allen-Zhu, Zeyuan
author_facet Ye, Tian
Xu, Zicheng
Li, Yuanzhi
Allen-Zhu, Zeyuan
contents Recent advances in language models have demonstrated their capability to solve mathematical reasoning problems, achieving near-perfect accuracy on grade-school level math benchmarks like GSM8K. In this paper, we formally study how language models solve these problems. We design a series of controlled experiments to address several fundamental questions: (1) Can language models truly develop reasoning skills, or do they simply memorize templates? (2) What is the model's hidden (mental) reasoning process? (3) Do models solve math questions using skills similar to or different from humans? (4) Do models trained on GSM8K-like datasets develop reasoning skills beyond those necessary for solving GSM8K problems? (5) What mental process causes models to make reasoning mistakes? (6) How large or deep must a model be to effectively solve GSM8K-level math questions? Our study uncovers many hidden mechanisms by which language models solve mathematical questions, providing insights that extend beyond current understandings of LLMs.
format Preprint
id arxiv_https___arxiv_org_abs_2407_20311
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle Physics of Language Models: Part 2.1, Grade-School Math and the Hidden Reasoning Process
Ye, Tian
Xu, Zicheng
Li, Yuanzhi
Allen-Zhu, Zeyuan
Artificial Intelligence
Computation and Language
Machine Learning
Recent advances in language models have demonstrated their capability to solve mathematical reasoning problems, achieving near-perfect accuracy on grade-school level math benchmarks like GSM8K. In this paper, we formally study how language models solve these problems. We design a series of controlled experiments to address several fundamental questions: (1) Can language models truly develop reasoning skills, or do they simply memorize templates? (2) What is the model's hidden (mental) reasoning process? (3) Do models solve math questions using skills similar to or different from humans? (4) Do models trained on GSM8K-like datasets develop reasoning skills beyond those necessary for solving GSM8K problems? (5) What mental process causes models to make reasoning mistakes? (6) How large or deep must a model be to effectively solve GSM8K-level math questions? Our study uncovers many hidden mechanisms by which language models solve mathematical questions, providing insights that extend beyond current understandings of LLMs.
title Physics of Language Models: Part 2.1, Grade-School Math and the Hidden Reasoning Process
topic Artificial Intelligence
Computation and Language
Machine Learning
url https://arxiv.org/abs/2407.20311