Classified Query Expansion Algorithm Based on Semantic Relation Tree
基于语义关联树的分类扩展算法

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 ...