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基于搜索的LLM测试时计算综述:任务、LLM画像、搜索算法及相关框架

A Survey on LLM Test-Time Compute via Search: Tasks, LLM Profiling, Search Algorithms, and Relevant Frameworks

Xinzhe Li

Xinzhe Li

AI总结:

本综述统一了基于搜索的LLM测试时计算框架的任务定义、LLM画像与搜索过程,通过MDP和模块化定义实现精确比较,并探讨各方法的适用性、性能与效率。

摘要:

基于搜索的LLM测试时计算(或LLM推理)已成为一个快速发展的有前景的研究领域。然而,当前框架在任务定义、LLM画像和搜索过程这三个关键方面常采用不同视角,使得直接比较具有挑战性。此外,所采用的搜索算法常偏离标准实现,且其具体特征未被充分说明。本综述旨在对现有LIS框架提供全面但集成的技术审查。具体而言,我们在马尔可夫决策过程(MDP)下统一任务定义,并提供LLM画像和搜索过程的模块化定义。这些定义能够精确比较各种LLM推理框架,同时突出它们与传统搜索算法的差异。我们还讨论了这些方法的适用性、性能和效率。论文持续更新请见GitHub仓库:https://github.com/xinzhel/LLM-Search。

英文摘要:

LLM test-time compute (or LLM inference) via search has emerged as a promising research area with rapid developments. However, current frameworks often adopt distinct perspectives on three key aspects: task definition, LLM profiling, and search procedures, making direct comparisons challenging. Moreover, the search algorithms employed often diverge from standard implementations, and their specific characteristics are not thoroughly specified. This survey aims to provide a comprehensive but integrated technical review on existing LIS frameworks. Specifically, we unify task definitions under Markov Decision Process (MDP) and provides modular definitions of LLM profiling and search procedures. The definitions enable precise comparisons of various LLM inference frameworks while highlighting their departures from conventional search algorithms. We also discuss the applicability, performance, and efficiency of these methods. For ongoing paper updates, please refer to our GitHub repository: https://github.com/xinzhel/LLM-Search.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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