Calculating cross-ontology similarity for Web services discovery

The Semantic Web and ontologies can be seen as a way to enable greater access not only to contents but also services on the Web. Users and software agents should be able to discover, invoke and compose Web services with a high degree of automation. However, current existing Web services are created by many different parties and are described based on different ontologies, which makes it difficult for retrieval systems to locate needed services. To facilitate the discovery of Web services in multi- ontology environments, we propose an approach to determine the semantic similarity of properties between different ontologies.