Research on Web Query Translation based on Ontology

This paper presents a framework of query translation based on ontology between different query interfaces (forms), which will translate the queries into suitable formats, hiding the differences from underlying sources, and enabling users to access data sources conveniently. Firstly, constructing domain ontology concept model (DOCM), then, finding out predicate matching relationships between source form and target forms based on DOCM, lastly, analyzing query rewrite strategy which contains four type rewriters to construct automatically a set of constraint mapping rules so that the system can use the user-provided input values to fill out the appropriate form fields of different web database forms. Experiment results show that this method is feasible and effective.