Ontology as a Service (OaaS): extending sub-ontologies on the cloud

摘要

In this paper, we introduce a new notion of Ontology as a Service, in which the ontology tailoring processrnserves as a service in the cloud. To illustrate Ontology as a Service, we propose sub-ontology extractionrnand extension, whereby a sub-ontology is extracted from the main ontology and is then extended to coverrnnew concepts and relationships. We use a maximum extraction method to facilitate this. Unified MedicalrnLanguage System meta-thesaurus ontology is used as a walk-through case study to illustrate our proposedrnmethods.