Exploring Multi-Temperature Strategies for Token- and Rollout-Level Control in RLVR

Fuente: arXiv
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Auteurs principaux: Zhuang, Haomin, Zhou, Yujun, Guo, Taicheng, Huang, Yue, Liu, Fangxu, Song, Kai, Zhang, Xiangliang
Format: Preprint
Publié: 2025
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author Zhuang, Haomin
Zhou, Yujun
Guo, Taicheng
Huang, Yue
Liu, Fangxu
Song, Kai
Zhang, Xiangliang
author_facet Zhuang, Haomin
Zhou, Yujun
Guo, Taicheng
Huang, Yue
Liu, Fangxu
Song, Kai
Zhang, Xiangliang
contents Reinforcement Learning has demonstrated substantial improvements in the reasoning abilities of Large Language Models (LLMs), exhibiting significant applicability across various domains. Recent research has identified that tokens within LLMs play distinct roles during reasoning tasks, categorizing them into high-entropy reasoning tokens and low-entropy knowledge tokens. Prior approaches have typically focused on restricting updates to indirectly encourage exploration, yet they do not explicitly facilitate exploratory behavior during the token generation stage itself. In this work, we introduce a complementary approach that explicitly promotes exploration during sampling by applying distinct temperature settings for different token types. Specifically, our method employs higher temperatures for reasoning tokens to actively encourage exploration, while retaining lower temperatures for knowledge tokens to maintain factual correctness. Furthermore, we systematically investigate various multi-temperature scheduling strategies and their impacts within reinforcement learning contexts. Empirical evaluations on several reasoning benchmarks demonstrate that our approach significantly enhances the reasoning performance of LLMs. The code is available at https://github.com/zhmzm/Multi_Temperature_Verl.git.
format Preprint
id arxiv_https___arxiv_org_abs_2510_08892
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Exploring Multi-Temperature Strategies for Token- and Rollout-Level Control in RLVR
Zhuang, Haomin
Zhou, Yujun
Guo, Taicheng
Huang, Yue
Liu, Fangxu
Song, Kai
Zhang, Xiangliang
Computation and Language
Artificial Intelligence
Reinforcement Learning has demonstrated substantial improvements in the reasoning abilities of Large Language Models (LLMs), exhibiting significant applicability across various domains. Recent research has identified that tokens within LLMs play distinct roles during reasoning tasks, categorizing them into high-entropy reasoning tokens and low-entropy knowledge tokens. Prior approaches have typically focused on restricting updates to indirectly encourage exploration, yet they do not explicitly facilitate exploratory behavior during the token generation stage itself. In this work, we introduce a complementary approach that explicitly promotes exploration during sampling by applying distinct temperature settings for different token types. Specifically, our method employs higher temperatures for reasoning tokens to actively encourage exploration, while retaining lower temperatures for knowledge tokens to maintain factual correctness. Furthermore, we systematically investigate various multi-temperature scheduling strategies and their impacts within reinforcement learning contexts. Empirical evaluations on several reasoning benchmarks demonstrate that our approach significantly enhances the reasoning performance of LLMs. The code is available at https://github.com/zhmzm/Multi_Temperature_Verl.git.
title Exploring Multi-Temperature Strategies for Token- and Rollout-Level Control in RLVR
topic Computation and Language
Artificial Intelligence
url https://arxiv.org/abs/2510.08892