RESEARCH PAPERS

Scientific Entity Recognition Methods Based on Large Language Models Fine-Tuning

  • Wang Jiamin ,
  • Zhang Tao ,
  • Fang Zichen
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  • School of Economics and Management, Xidian University, Xi'an 710126
Wang Jiamin, Associate Professor, PhD, Master's Supervisor, E-mail:wangjiamin@xidian.edu.cn; Zhang Tao, Master's Candidate; Fang Zichen, Master's Candidate.

Received date: 2025-04-23

  Revised date: 2025-08-31

  Online published: 2026-06-23

Supported by

This work is supported by the National Natural Science Foundation of China project titled “Research on the Identification and Evolution Path of Interdisciplinary Knowledge Structure Based on Text Semantic Understanding” (Grant No. 72304218), and Annual Projects of the Shaanxi Provincial Social Science Fund titled “Research on the Fine-Grained Knowledge Unit Citation Network in Academic Literature” (Grant No. 2023N003).

Abstract

[Purpose/Significance] This study explores the application of fine-tuned large language models(LLMs) in scientific entity recognition from academic literature, aiming to improve the recognition performance of specific types of scientific entities. [Method/Process] First, the original evaluation dataset was preprocessed by sentence segmentation and entity filtering. Specific prompt templates were designed to convert the preprocessed data into a dataset compatible with the fine-tuning format of LLMs. Subsequently, the Low-Rank Adaptation(LoRA) strategy was employed to conduct supervised fine-tuning on four LLMs from the DeepSeek and Qwen series. These models were compared with state-of-the-art(SOTA) deep learning models and prompt learning methods based on the DeepSeek-R1-671B model. Performance was comprehensively evaluated using precision, recall, and F1-score, combined with efficiency metrics such as training runtime and floating-point operations. Finally, an in-depth analysis of the models' misidentification types was conducted. [Result/Conclusion] Experimental results demonstrate that the fine-tuned LLMs perform significantly in scientific entity recognition tasks, achieving an F1 score of 81.20%, and effectively improving the accuracy of scientific entity recognition.

Cite this article

Wang Jiamin , Zhang Tao , Fang Zichen . Scientific Entity Recognition Methods Based on Large Language Models Fine-Tuning[J]. Library and Information Service, 2026 , 70(13) : 56 -67 . DOI: 10.13266/j.issn.0252-3116.2026.13.005

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