Structured Vector Space Model and Its Application to Web Information Retrieval System

Considering specialties on web information retrieval and analyzing some problems about the traditional vector space model,this paper proposes the concept of structured vector space model.The new model represents a web document as a logically structured vector,which contains several sub-vectors related to relatively independent parts such as title,subtitle,plain text and anchor text,etc.by the retical analysis and experimental proof.It can improve the performance of the traditional vector space model in precision and recall.