CheMatAgent: Enhancing LLMs for Chemistry and Materials Science through Tree-Search Based Tool Learning

Fuente: arXiv
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Auteurs principaux: Wu, Mengsong, Wang, YaFei, Ming, Yidong, An, Yuqi, Wan, Yuwei, Chen, Wenliang, Lin, Binbin, Li, Yuqiang, Xie, Tong, Zhou, Dongzhan
Format: Preprint
Publié: 2025
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author Wu, Mengsong
Wang, YaFei
Ming, Yidong
An, Yuqi
Wan, Yuwei
Chen, Wenliang
Lin, Binbin
Li, Yuqiang
Xie, Tong
Zhou, Dongzhan
author_facet Wu, Mengsong
Wang, YaFei
Ming, Yidong
An, Yuqi
Wan, Yuwei
Chen, Wenliang
Lin, Binbin
Li, Yuqiang
Xie, Tong
Zhou, Dongzhan
contents Large language models (LLMs) have recently demonstrated promising capabilities in chemistry tasks while still facing challenges due to outdated pretraining knowledge and the difficulty of incorporating specialized chemical expertise. To address these issues, we propose an LLM-based agent that synergistically integrates 137 external chemical tools created ranging from basic information retrieval to complex reaction predictions, and a dataset curation pipeline to generate the dataset ChemToolBench that facilitates both effective tool selection and precise parameter filling during fine-tuning and evaluation. We introduce a Hierarchical Evolutionary Monte Carlo Tree Search (HE-MCTS) framework, enabling independent optimization of tool planning and execution. By leveraging self-generated data, our approach supports step-level fine-tuning (FT) of the policy model and training task-adaptive PRM and ORM that surpass GPT-4o. Experimental evaluations demonstrate that our approach significantly improves performance in Chemistry QA and discovery tasks, offering a robust solution to integrate specialized tools with LLMs for advanced chemical applications. All datasets and code are available at https://github.com/AI4Chem/ChemistryAgent .
format Preprint
id arxiv_https___arxiv_org_abs_2506_07551
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle CheMatAgent: Enhancing LLMs for Chemistry and Materials Science through Tree-Search Based Tool Learning
Wu, Mengsong
Wang, YaFei
Ming, Yidong
An, Yuqi
Wan, Yuwei
Chen, Wenliang
Lin, Binbin
Li, Yuqiang
Xie, Tong
Zhou, Dongzhan
Machine Learning
Artificial Intelligence
Computational Engineering, Finance, and Science
Computation and Language
Large language models (LLMs) have recently demonstrated promising capabilities in chemistry tasks while still facing challenges due to outdated pretraining knowledge and the difficulty of incorporating specialized chemical expertise. To address these issues, we propose an LLM-based agent that synergistically integrates 137 external chemical tools created ranging from basic information retrieval to complex reaction predictions, and a dataset curation pipeline to generate the dataset ChemToolBench that facilitates both effective tool selection and precise parameter filling during fine-tuning and evaluation. We introduce a Hierarchical Evolutionary Monte Carlo Tree Search (HE-MCTS) framework, enabling independent optimization of tool planning and execution. By leveraging self-generated data, our approach supports step-level fine-tuning (FT) of the policy model and training task-adaptive PRM and ORM that surpass GPT-4o. Experimental evaluations demonstrate that our approach significantly improves performance in Chemistry QA and discovery tasks, offering a robust solution to integrate specialized tools with LLMs for advanced chemical applications. All datasets and code are available at https://github.com/AI4Chem/ChemistryAgent .
title CheMatAgent: Enhancing LLMs for Chemistry and Materials Science through Tree-Search Based Tool Learning
topic Machine Learning
Artificial Intelligence
Computational Engineering, Finance, and Science
Computation and Language
url https://arxiv.org/abs/2506.07551