图书馆杂志

图书馆杂志 ›› 2020, Vol. 39 ›› Issue (10): 45-52.

• 工作研究 • 上一篇    下一篇

基于LDA主题模型的高校科技查新服务新方法探索

李美凝 张 芹 张秀美   

  • 出版日期:2020-10-27 发布日期:2020-10-27
  • 作者简介:李美凝 女,中国石油大学(北京)图书馆,馆员, 硕士。研究方向:石油情报研究、科技查新。作者 贡献:论文研究思路设计、论文撰写。E-mail:limeining@cup.edu.cn 北京 102249 张  芹 女,中国石油大学(北京)图书馆,副研究 馆员,博士。研究方向:石油情报分析。作者贡献: 论文指导。北京 102249 张秀美 女,中国石油大学(北京)图书馆,馆员, 硕士。研究方向:计算机技术。作者贡献:数据编程 指导。北京 102249

The New Method of Sci-tech Novelty Retrieval Service Based on LDA Topic Model

Li Meining, Zhang Qin, Zhang Xiumei   

  • Online:2020-10-27 Published:2020-10-27

摘要: 科技查新是评估科技创新活动的重要手段,但查新报告的质量受查新员主观因素的影响 较大,查新工作也亟须转型,认为基于大数据的LDA主题模型方法可以帮助提高科技查新的权威 性,为科技查新的长远发展提供策略参考。本文介绍了LDA主题模型的理论基础及其应用,形成了 基于LDA主题模型的科技查新方法,探讨了该方法在不同查新环节的具体应用,并通过实际案例分 析了该方法的应用效果。在科技查新工作中引入LDA主题模型方法,可以帮助查新员有效把控查新 点,辅助审核员快速审核报告,启发委托人多维科研思考;不仅提高了查新报告的可读性、客观 性,还拓展了查新站的深层次情报服务能力,为科技查新工作的转型做好铺垫。 

关键词:  , 科技查新 LDA 主题模型 主题演化

Abstract: Sci-tech novelty retrieval is an important approach to evaluate scientific and technological innovation activities, but the quality of novelty retrieval report is greatly affected by the subjective factors of novelty searchers, and the sci-tech novelty retrieval work also needs to be transformed. This paper proposed that the LDA topic model based on big data can effectively improve the authority of sci-tech novelty searching, and provide strategic reference for the development of sci-tech novelty retrieval. This paper introduced the theoretical basis and application of LDA topic model, formed a sci-tech novelty search method based on LDA topic model, discussed the specific application of this method in different aspects of novelty search, and analyzed the effect of this method through practical cases. The introduction of LDA subject model method in the sci-tech novelty retrieval can effectively help the novelty searchers to understand the novelty retrieval points, assist the auditor to rapidly review reports and inspire the clients to evaluate scientific research from multiple perspectives. It not only improves the readability and objectivity of the novelty search report, but also explores the in-depth intelligence service capability of the novelty search station, laying a solid foundation for the transformation of the sci-tech novelty retrieval. 

Key words: Sci-tech novelty retrieval, LDA, Topic model, Topic evolution