%0 Journal Article
%T Classified Query Expansion Algorithm Based on Semantic Relation Tree<br>基于语义关联树的分类扩展算法
%A REN Yong-gong
%A FAN Dan
%A WU Jia-lin
%A <br>任永功
%A 范丹
%A 武佳林
%J 计算机科学
%D 2009
%I 
%X Introducing semantic computing technology into the query expansion is an important research direction.In this paper we presented a semantic relation tree model which combines with topic selection and local feedback method,classified expand query from the perspective of semantic.Traditional methods exist for the problems,such as the lack of knowledge in the topic,the introduction of irrelevant words and the filter functions are not proper.We introduced Web text classification into the semantic relation tree ...
%K Semantic relation tree
%K Topic selection
%K Query expansion
%K Web page classification<br>语义关联树
%K 主题选取
%K 查询扩展
%K Web文本分类
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=8240383F08CE46C8B05036380D75B607&jid=64A12D73428C8B8DBFB978D04DFEB3C1&aid=765BC8F50FB140A8861AD4C6C4569D36&yid=DE12191FBD62783C&vid=933658645952ED9F&iid=9CF7A0430CBB2DFD&sid=9CA95D22FC1D537C&eid=6A73B36E85DB0CE9&journal_id=1002-137X&journal_name=计算机科学&referenced_num=0&reference_num=12