研究论文

PSR-CoT:一种面向学科交叉语义嵌套三元组抽取的提示框架

  • 肖玥 ,
  • 李艺亭
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  • 1 中国社会科学评价研究院 北京 100732;
    2 中国人民大学信息资源管理学院 北京 100872
肖玥,助理研究员,博士;李艺亭,博士研究生,通信作者,E-mail: ting2020@ruc.edu.cn。
32305.14.CN11-1541.2026.18.009

收稿日期: 2025-07-15

  修回日期: 2025-09-23

  网络出版日期: 2026-09-08

PSR-CoT: A Prompting Framework for Interdisciplinary Nested Triplet Extraction

  • Xiao Yue ,
  • Li Yiting
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  • 1 Chinese Academy of Social Sciences Evaluation Studies, Beijing 100732;
    2 School of Information Resource Management, Renmin University of China, Beijing 100872
Xiao Yue, Assistant Research Fellow, PhD; Li Yiting, Doctoral Candidate, Corresponding Author, E-mail: ting2020@ruc.edu.cn.

Received date: 2025-07-15

  Revised date: 2025-09-23

  Online published: 2026-09-08

摘要

[目的/意义] 为弥补现有学科交叉研究在语义层面结构化知识表征的不足,探索面向学科交叉核心内容的三元组描述模型及其抽取方法。[方法/过程] 首先,提出学科交叉“研究问题—解决方案—解决结果” PSR三元组描述框架,以实现对学科交叉研究中核心内容的结构化语义描述。其次,针对三元组抽取任务,设计基于大语言模型和思维链的PSR-CoT(problem-solution-result chain of thought)提示,通过在提示中引入文本描述特征、逻辑推理示例和自我反思机制等,有效提升大语言模型的三元组抽取精准性。[结果/结论] 基于自建数据集,引入本文提出的PSR-CoT提示策略后,Qwen3、GPT-4o和DeepSeek-R1在三元组抽取中F1值平均达到了86.11%、78.48%和70.01%,相比零提示策略分别提升了25.75%、18.61%和20.87%。Qwen3在抽取任务中表现最佳且与PSR-CoT提示配合最好,逻辑推理示例对模型性能提升贡献最大。基于PSR三元组构建的知识图谱,能够直观呈现在学科交叉问题解决过程中多学科知识的融合方式与路径,为相关研究提供技术路线参考。

本文引用格式

肖玥 , 李艺亭 . PSR-CoT:一种面向学科交叉语义嵌套三元组抽取的提示框架[J]. 图书情报工作, 2026 , 70(18) : 118 -132 . DOI: 10.13266/j.issn.0252-3116.2026.18.009

Abstract

[Purpose/Significance] To address the lack of structured semantic representation in interdisciplinary research, this study explores a triplet-based descriptive model and its extraction method for capturing core interdisciplinary content. [Method/Process] This study proposes a semantic nested triplet of the form “Problem-Solution-Result” to enable a structured semantic representation of core interdisciplinary research content. To address the triplet extraction, a PSR-CoT (Problem-Solution-Result Chain-of-Thought) prompting strategy is designed based on large language models (LLMs) and the chain of thought (CoT). By incorporating characteristic descriptions, logical examples, and self-verification mechanisms into PSR-CoT, the triplet extraction accuracy is significantly improved. [Result/Conclusion] On a self-constructed dataset and the introduction of the PSR-CoT proposed in this paper, the average F1 scores of Qwen3, GPT-4o, and DeepSeek-R1 in triplet extraction reach 86.11%, 78.48%, and 70.01%, representing improvements of 25.75%, 18.61%, and 20.87% over zero-prompt baselines, respectively. Among these models, Qwen3 demonstrates the most effective synergy with PSR-CoT, achieving the highest performance. Logical examples contribute most significantly to the performance gain. The knowledge graphs constructed from these triplets visually map interdisciplinary problem-solving pathways and knowledge integration processes, offering a technical reference for related research.

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