Research on Personalized Document Retrieval and Ranking Strategy

Abstract

In order to provide appropriate text information in line with users' cognitive level, a new personalized retrieval method is proposed in this paper. At first user's personalized cognitive structure should be established and with this structure user's cognitive level can be represented formally. Then related concept can be extended around the keywords, and queried documents should be ranked according to the user's cognitive level and the content of the document. Experiments show that different users will get different search results even if they use the same keywords.