摘要
提出了一种综合词法关系和语义分析的查询优化方法.通过对查询关键字词法特性和本体实例之间语义关联强弱的分析,提高了查询关键字到本体概念映射的完整性和准确率,帮助搜索引擎对用户的意图做出有效推测,解决了传统搜索引擎不能很好理解用户意图的问题.设计实现了相应的查询优化系统,实验表明,该系统可以有效地提高搜索的准确率.
A query refinement scheme, which synthesizes the synonymic relation and the semantic association, is presented. By analyzing the synonymic characteristic of the key words and the intensity of semantic association among the ontology instances, the accuracy and completeness of the mapping from key word to ontology entities can be improved. A query refinement system is designed and implemented. The experimentation results show the system can optimize query input efficiently.
出处
《北京邮电大学学报》
EI
CAS
CSCD
北大核心
2006年第6期107-110,共4页
Journal of Beijing University of Posts and Telecommunications
基金
国家自然科学基金重点项目(60432010)
关键词
搜索引擎
查询优化
语义关联
词网
Web search query refinement
semantic association
WordNet
