Abstract: Ontology Matching is to Measuring the relation between entities of ontology. It relics not only on the relation between concepts,but also between concept neighbors and semantic associations. A new Ontology Matching Approach Based on Virtual path was proposed. Through the definition of virtual path around the two concepts, the approach utilined the semantic similarity of concepts, and computed the combined similarity of two virtual paths of two concepts with graph matching. After computing the similarity of two virtual paths, it decided the matching relation of ontology element. The experiment showed that the approach could increase ontology measuring quality and performance effectively.

Key words: Virtual path, Ontology matching, Matching approach, Semantic similarity of concept, Semantic similarity of graph