Towards the Efficiency of Ontology-Based Context Reasoning in Virtual Computing Environment

Context-aware computing is one of the key issues in virtual computing environment. This paper aims to compare the ontology-based context modeling and reasoning approach with the traditional non-semantic one. A general scenario of virtual computing is given about the dynamical service aggregation and evolution. And the context of the environment is modeled respectively using an OWL based way and a Markup scheme. Then two sets of experiments are designed to analyze these two approaches from different perspectives like reasoning efficiency, modeling capability and convenience.