Personalized Information Service Based on Ontology and Context-Aware

This paper considers a new design of personalized information service based on ontology and context-aware. The primary contribution of the paper is in proposing an improved personalized service structure, which combines the nowadays-new approach updating of context-information with lineal gradual forgetting algorithm. The method can diminish the importance of historical context-information gradually with a line according to the context-information as the time flies, and eventually form the comprehensive context-information of the users. Finally in accordance with above it provides users with the information demand fitting the current context-information.