A Personal Query Framework based on Personal and Role Ontology

To meet requirements of personal query, a personal query framework including personal ontology and role ontology is proposed based on preference ontology. The two-tier structure of the preference semantic formalization shows the differences and commonness of the background knowledge among different users. It is possible to generate personal ontology and role ontology automatically and to maintain them by the historical query records and analysis modules in the framework Comparing with current methods, this framework is able to implement personal semantic query and make it possible to create and maintain the two-tier ontology structure highly automatically because of the personal semantic preference formal expression.