一种基于关联规则和本体的语义查询扩展方法研究  

Study on an Association Rules and Ontology Based on Semantic Query Expansion

作　　者：张鼐[1] 周年喜 张英[1] 

机构地区：[1]淮海工学院图书馆,江苏连云港222005 [2]淮海工学院电子工程学院,江苏连云港222005

出　　处：《情报科学》2009年第11期1684-1687,共4页Information Science

摘　　要：目前传统的查询扩展技术主要是研究关键词查询扩展,虽然在技术上有了很大改进,然而却不能实质性地提高信息检索性能。在分析目前的查询扩展的基础上,提出了一种新型的语义扩展查询的方法。该方法结合了关联规则、本体以及其他一些检索技术,相对于传统的查询扩展技术的信息查询效果有了较大地提高。试验表明,用F-measure进行比较有相对12.26%的提高;用P@20比较时,有相对13.40%的提高。At present, the traditional query expansion is a major technical study on keywords query expansion, although technically has been greatly improved, but it can not substantially improve the performance of information retrieval. In the analysis of the current query expansion, the paper proposes a new type of semantic expansion of queries. This method is a combination of association rules, and other body retrieval technology, as opposed to the traditional query expansion of information technology effects have been greatly improved. Experiments on standard testing set show that the approach achieves 13.40% improvement for P@20 and 12.26% for the F-measure.

关 键 词：查询扩展 关联规则 本体 语义相似性 信息检索 

分 类 号：TP391[自动化与计算机技术—计算机应用技术] G354[自动化与计算机技术—计算机科学与技术]