%0 Journal Article
%T A Query Expansion Method Based on Semantic Element<br>一种基于语义单元的查询扩展方法
%A LI Li
%A GAO Qing-Shi
%A <br>李莉
%A 高庆狮
%J 计算机科学
%D 2008
%I 
%X Query Expansion technology can reduce word mismatch between query and related documents,improve retrieval result through adding similar or related terms to original query.In the algorithm proposed in this paper,terms or phrases which have closely related sense are added to the original query and express users' query intention more precisely.This algorithm costs O(L)time which is independent of the SER-Base,and this is very practical for highly real-time search engine.
%K Information retrieval
%K Query expansion
%K Search engine
%K Semantic element<br>信息检索
%K 查询扩展
%K 搜索引擎
%K 语义单元
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=8240383F08CE46C8B05036380D75B607&jid=64A12D73428C8B8DBFB978D04DFEB3C1&aid=0F7C93E84B8AB3E6F5CABCA51575AE59&yid=67289AFF6305E306&vid=6209D9E8050195F5&iid=0B39A22176CE99FB&sid=BC084ACE66B62CC8&eid=02DC3A182A5530DF&journal_id=1002-137X&journal_name=计算机科学&referenced_num=0&reference_num=11