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计算机工程 ›› 2012, Vol. 38 ›› Issue (06): 19-21. doi: 10.3969/j.issn.1000-3428.2012.06.006

• 博士论文 • 上一篇    下一篇

一种基于本体的知识库语义扩展搜索方法

万 静,王文聪,易军凯   

  1. (北京化工大学信息科学与技术学院,北京 100029)
  • 收稿日期:2011-07-11 出版日期:2012-03-20 发布日期:2012-03-20
  • 作者简介:万 静(1975-),女,讲师、博士,主研方向:智能信息系统;王文聪,硕士;易军凯,教授
  • 基金资助:

    国家文化遗产保护科技“十二五”基金资助重大项目(20100206)

Semantic Extended Search Approach Based on Ontology in Knowledge Base

WAN Jing, WANG Wen-cong, YI Jun-kai   

  1. (School of Information Science and Technology, Beijing University of Chemical Technology, Beijing 100029, China)
  • Received:2011-07-11 Online:2012-03-20 Published:2012-03-20

摘要: 为使知识库的信息搜索突破传统基于关键字查询的局限,提出一种基于本体的知识库语义扩展搜索方法。将本体和语义扩展引入知识库,对用户查询条件进行扩展搜索,通过相关度分析对搜索结果进行排序,使搜索效果得到优化。实验结果表明,该方法能提高搜索查全率和查准率。

关键词: 本体, 知识库, 语义扩展, 相关度分析, 扩展搜索, 语义知识词典

Abstract: To break through the limitations in traditional queries based on keyword search and improve search recall and precision, a semantic extended search approach, which is based on ontology in knowledge base, is proposed in this paper. This approach extends the user’s search query, and sorts search results according to relevance analyses. Experimental results show that the approach in this paper can effectively improve the recall and precision.

Key words: ontology, knowledge base, semantic extension, relevance analysis, extended search, semantic knowledge dictionary

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