A re-usability approach to ontology construction

Knowledge Representation is largely based on ontologies in the Semantic Web. One of the major difficulties to construct ontology such that it meets the requirements of users is the high cost incurred and time consumed in building them. Gathering complete knowledge about the domain of disclosure is time consuming and may not guarantee expected results too. Therefore reuse of existing ontologies can offer a cost and time benefit alternative than building new ones from scratch. Hence, an approach is proposed to reuse the existing ontologies available on the web and online libraries to build new ontologies. This paper presents an approach to retrieve the required ontologies on basis of important terms of domain from online repositories using semantic web search engines, preprocess them as per our requirement and merge them to form the entire domain ontology.