%0 Journal Article
%T Query expansion based on user relevance feedback and ontology<br>基于本体和用户相关反馈的扩展查询研究
%A WANG Xu-yang
%A <br>王旭阳
%J 计算机应用
%D 2008
%I 
%X A novel method for Query Expansion (QE) was presented in this paper. The proposed method was a hybrid QE technology that combined user relevance feedback and ontology. The proposed method had two significant novelties: it combined user relevance feedback with ontology and used FirteX as the experimental platform. The proposed method was compared with cosine similarity-based QE that was a widely used query expansion technique. The experimental results show that the proposed method outperforms cosine similarity-based QE 15% and 13% in terms of average precision and average recall and has an improvement of 16% in F-measure.
%K information retrieval
%K Query Expansion (QE)
%K user relevance feedback
%K ontology<br>信息检索
%K 扩展查询
%K 用户相关反馈
%K 本体
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=8240383F08CE46C8B05036380D75B607&jid=831E194C147C78FAAFCC50BC7ADD1732&aid=36A209BD76ACA6D949267816E55B1990&yid=67289AFF6305E306&vid=D3E34374A0D77D7F&iid=708DD6B15D2464E8&sid=D58B400F0C66CC96&eid=644ED03C44803849&journal_id=1001-9081&journal_name=计算机应用&referenced_num=1&reference_num=13