Towards Large Reasoning Models: A Survey of Reinforced Reasoning with Large Language Models

• URL: http://arxiv.org/abs/2501.09686v3
• Date: Thu, 23 Jan 2025 08:44:44 GMT
• Title: Towards Large Reasoning Models: A Survey of Reinforced Reasoning with Large Language Models
• Authors: Fengli Xu, Qianyue Hao, Zefang Zong, Jingwei Wang, Yunke Zhang, Jingyi Wang, Xiaochong Lan, Jiahui Gong, Tianjian Ouyang, Fanjin Meng, Chenyang Shao, Yuwei Yan, Qinglong Yang, Yiwen Song, Sijian Ren, Xinyuan Hu, Yu Li, Jie Feng, Chen Gao, Yong Li,
• Abstract summary: Large Language Models (LLMs) have sparked significant research interest in leveraging them to tackle complex reasoning tasks.<n>Recent studies demonstrate that encouraging LLMs to "think" with more tokens during test-time inference can significantly boost reasoning accuracy.<n>The introduction of OpenAI's o1 series marks a significant milestone in this research direction.
• Score: 33.13238566815798
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: Language has long been conceived as an essential tool for human reasoning. The breakthrough of Large Language Models (LLMs) has sparked significant research interest in leveraging these models to tackle complex reasoning tasks. Researchers have moved beyond simple autoregressive token generation by introducing the concept of "thought" -- a sequence of tokens representing intermediate steps in the reasoning process. This innovative paradigm enables LLMs' to mimic complex human reasoning processes, such as tree search and reflective thinking. Recently, an emerging trend of learning to reason has applied reinforcement learning (RL) to train LLMs to master reasoning processes. This approach enables the automatic generation of high-quality reasoning trajectories through trial-and-error search algorithms, significantly expanding LLMs' reasoning capacity by providing substantially more training data. Furthermore, recent studies demonstrate that encouraging LLMs to "think" with more tokens during test-time inference can further significantly boost reasoning accuracy. Therefore, the train-time and test-time scaling combined to show a new research frontier -- a path toward Large Reasoning Model. The introduction of OpenAI's o1 series marks a significant milestone in this research direction. In this survey, we present a comprehensive review of recent progress in LLM reasoning. We begin by introducing the foundational background of LLMs and then explore the key technical components driving the development of large reasoning models, with a focus on automated data construction, learning-to-reason techniques, and test-time scaling. We also analyze popular open-source projects at building large reasoning models, and conclude with open challenges and future research directions.

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