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Ontology plays an essential role in the formalization of business information (e.g., products, services, relationships of businesses) for effective human-computer interactions. However, engineering of domain ontologies turns out to be very labor intensive and time consuming. Recently, some machine learning methods have been proposed for automatic discovery of domain ontologies. Nevertheless, the accuracy and computational ef ciency of the existing methods need to be improved to support largedblp:journals/cib/Lau07 fatcat:lan4xgml7jgolpsl5gsstkrvzq