计算机工程与应用Issue(1)：151-155,217,6.DOI:10.3778/j.issn.1002-8331.1301-0354
一种基于本体和用户日志的查询扩展方法
TAN Ruizhe Query expansion method based on ontology and user log
摘要
Abstract
In order to solve the word ambiguity problem in information retrieval, a new query expansion method based on ontology and user log is proposed. This paper expands user queries using domain ontology from the semantic level to the formation of the initial expanded concept of set, combined with user query logs set for secondary screening of the initial set by use of co-occurrence analysis. The experimental results show that, compared to the traditional expansion method based on the local co-occurrence and ontology-based extension method, this method not only ensures good robustness, but also effectively improves the retrieval accuracy.关键词
本体/查询扩展/用户日志/语义相似度/共现度Key words
ontology/query expansion/user log/semantic similarity/co-occurrence degree分类
信息技术与安全科学引用本文复制引用
欧阳柳波,谭睿哲..一种基于本体和用户日志的查询扩展方法[J].计算机工程与应用,2015,(1):151-155,217,6.基金项目
国家核高基重大专项2012年应用类课题（No.2012ZX01045-004-005-002）。 （）
