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Abstract:Ontologies play an important role for interoperability between organizations and for semantic web because they aim at capturing domain knowledge. Different solutions exist to identify the common concepts and involve different sources using ontology. Matching is a key operation in semantic web since it takes inputs as ontologies; each consists of a set of discrete entities like tables, xml elements, classes, properties. In this paper, we developed two anthologies by which we matched those ontologies to get the similar classes, objects, instances by using Protégé. Protégé is a tool used for comparing ontologies, merging ontologies, data translation, query processing.

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