Research On Personalized Information Service Based-on Ontology

Along with the rapid growth of information on the Internet, the personalized information service pattern will be able to substitute for traditional information service pattern gradually, in order to satisfy various demands of different users. But in the existing personalized information service system, the information recommendation technology all has some shortages. For example in the personalized information recommendation technology based on rules, along with regular quantity increasing, the management for the rule will be more and more difficult. In the personalized information recommendation technology which filters based on the content, due to lack of the semantic information, the information that the system provides for users cannot satisfy user's demand very well. In the personalized information recommendation technology, which filters based on the collaboration, the similar user the system found in certain situations is not the user who is most similar with the current user's interest, and the information provided for the current user is not the information which he is most interested in.In order to solve the flaws in the existing personalization information service, in foundation of discussing each existing personalization information recommendation manners and contraposing the insufficiency of the current information recommendation manners, we introduce the ontology, and propose a personalize information service model which based on ontology. On one hand we join the ontology when constructing user model, which causes comparison of the user model with the information content to be more convenient and quicker; On the other hand we use the ontology when recommending the personalization information, By doing so, we increase the semantic information, make up for the current information recommendation technology insufficiency in certain degree, and improve the recommendation information's recall and precision.Contraposing the Viewpoint proposed in this paper, we use the software engineering methods, construct the ontology in computer domain, and applies it in the computer domain periodical paper retrieval. The paper content saves by the XML form, in order to fully display the configurative and the semantic function of the XML. The experiment indicates that the personalized information service system joined with the ontology effectively raises the level of personalized information service...