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Abstract
The Semantic Web envisions making World Wide Web content machine processable, not just readable by human beings. Ontologies form the backbone of the Semantic Web. As ontologies are increasingly coming into existence, their evaluation is gaining importance. Ontology Alignment is the process of determining correspondences between concepts of ontologies describing the same domain or similar domains. For effective alignment of ontologies, computation of equivalent elements is not sufficient. By finding the degree or measure of similarity of a given target ontology with a large reference ontology such as an ontology constructed out of Wikipedia, the topical content of the target ontology can be categorized into a particular domain. Ontology categorization is a way of evaluating a given ontology by indicating how well a given ontology describes the domain it belongs to. The proposed approach attempts to compare a given target ontology and determine how it fits within the ontology constructed out of Wikipedia and categorizes the target ontology into a particular domain of knowledge.