Ontology Extraction from HTML Pages of one Domain

Most relational databases in the web are accessible through the HTML pages. This subject has been shown ontology extraction from web relational database may be to do by parsing of these HTML pages. Especially, when we don’t have access to the relational schema, this method is effectively doing. In this paper, we proposed a new method for extracting ontology of relational databases in the web, which are managing by content management system (CMS). Our method is a reverse engineering for determine template of CMS such that we can to define pseudo schema of relational database and retrieval its data. Then we have building ontology of domain as a new relational database. Moreover, HTML schema and HTML tags has been used as information to define ontology classes, object and data properties. Our method has more benefit of the mapping methods that has transfer database to ontology, directly.