P2P环境下数字图书馆系统基于语义的节点查询扩展研究  

Study on Semantic Query Expansion in Peer-to-Peer Networks of Digital Library

作　　者：杨韦洁[1] 高珑[1] 苏静[1] 

机构地区：[1]西安电子科技大学图书馆,陕西西安710071

出　　处：《现代情报》2014年第7期78-82,87,共6页Journal of Modern Information

摘　　要：针对传统数字图书馆中基于关键字的P2P查询扩展存在对用户检索词语义信息解释不足的缺陷,本文提出一种P2P环境下基于语义的节点查询扩展方法,通过把关键字关联表和本体相结合,实现了一种个性化查询扩展方法,同时利用这种扩展方法实现P2P中基于兴趣网络的搜索,能够较大幅度提升检索效率。As to traditional keyword - based P2P query expansion in Digital Lihrmy of user retrieval lacking of semantic infonnation which can hardly explain the query, this paper proposed a P2P environment based on semantic node query expansion methods, through the combination of keyword association table and the ontology, to achieve a personalized query expansion methods, while the use of this extension method based on interested in network search, could greatly enhance the efficiency of P2P retrieval.

关 键 词：P2P 语义扩展 关键字关联表 数字图书馆 

分 类 号：G250.7[文化科学—图书馆学]