Probabilistic ontology definition meta-model: Extension of OWL2 meta-model for defining probabilistic ontologies

Abstract

In this article, we have proposed an extension of OWL2 meta-model for representing the fundamental elements of probabilistic ontologies (POs). This meta-model, called Probabilistic Ontology Definition Meta-model (PODM), provides support for defining probabilistic ontologies. In addition, we have enriched PODM (by using Object Constraint Language) with a list of constraints specifying invariants that have to be fulfilled by all models that instantiate this meta-model. These constraints allow eliminating ambiguities and inconsistencies that exist in this model.