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。
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.
出处
《计算机工程》
CAS
CSCD
2012年第6期19-21,24,共4页
Computer Engineering
基金
国家文化遗产保护科技"十二五"基金资助重大项目(20100206)
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
ontology
knowledge base
semantic extension
relevance analysis
extended search
semantic knowledge dictionary
