一种基于本体的混合检索方法  

A Hybrid Retrieval Method Based on Ontology

作　　者：杨学兵[1] 孙航[1] 

机构地区：[1]安徽工业大学计算机学院,安徽马鞍山243002

出　　处：《计算机技术与发展》2009年第1期125-127,130,共4页Computer Technology and Development

基　　金：安徽省自然科学基金重点资助项目(2004KJ053ZD)

摘　　要：提出了一种基于本体的,综合改进的spread activation算法和语义分析的混合检索方法。通过改进的spread activa-tion算法和本体实例之间语义关联强弱的分析,得到一组查询词的相似词集合,从而提高了查询关键字到本体概念映射的完整性与准确性。设计实现了相应的检索系统,实验表明,该系统可以有效地提高检索的查全率与查准率。Bring forward a hybrid retrieval method which integrates the spread activation arithmetic and semantic analysis based on ontology. The semantic analysis between the modified spread activation arithmetic and ontological samples can get the similar words aggregate of the words you want to search for to enhance the integrity and accuracy of the ontology mapping of keywords. The design can realize the corresponding retrieval system, and the experiment also indicates that this system can improve recall ratio and precision ratio effectively.

关 键 词：SPREAD ACTIVATION 语义关联 语义检索 

分 类 号：TP311[自动化与计算机技术—计算机软件与理论]