Oracle Semantic technology enable smart discovery of spatial services

This paper focuses on RDF and ontology and semantic-enable geo-spatial services discovery. The domain ontology DB of reservoir area application was firstly proposed; based on this domain ontology DB, semantic information are annotated to the profile of the services to be discovered; and OWL-based service description language OWL-S instead of WSD are used to provide service description. Based on Oracle 11g semantic tools, the domain semantic ontology model and service semantic description OWLS are stored into database, and ontology based querying, rule based reasoning, and ontology enable data discovery are implemented. Based on Jena, Jena Adaptor and SPAQUEL, a service discovering client is developed to support 4 levels of service discovering. The experiment results are presented and analyzed in this paper, which show this semantic way can provide much more flexible, smart discovery ability that the traditional way can´t offer, and semantic enable service discovery has a good application prospect.