tailieunhanh - Transforming extended entity relationship model into owl ontology in temporal databases

The objective of W3C is to transform the current Web into a Semantic Web to reuse the previous system. Many previous systems were built based on the ER model, so the upgradation and transformation of the ER model into ontology in order to reduce cost is really necessary. There are various studies aiming at transforming from ER and EER model into ontology; however, the studies have not still mentioned the transforming from the temporal databases into OWL ontology. Therefore, this paper proposes the rules for transforming the temporal components in TimeER model into OWL. | Journal of Computer Science and Cybernetics, , (2018), 77–96 DOI TRANSFORMING EXTENDED ENTITY-RELATIONSHIP MODEL INTO OWL ONTOLOGY IN TEMPORAL DATABASES VO HOANG LIEN MINH1 , QUANG HOANG Hue University of Sciences, Hue University E-mail: 1 minhvhl@ Abstract. The objective of W3C is to transform the current Web into a Semantic Web to reuse the previous system. Many previous systems were built based on the ER model, so the upgradation and transformation of the ER model into ontology in order to reduce cost is really necessary. There are various studies aiming at transforming from ER and EER model into ontology; however, the studies have not still mentioned the transforming from the temporal databases into OWL ontology. Therefore, this paper proposes the rules for transforming the temporal components in TimeER model into OWL. Keywords. Conceptual data model; ontology; OWL; recursive relationship; Semantic Web; TimeER model. 1. INTRODUCTION In recent years, ontology has become a well-known term in the field of computer science for helping the machine “understand” and so that they could be able to process the information efficiently. Basically, ontology provides vocabulary to describe data which helps the computer understand their semantic. There are many languages designed to present ontology for semantic web. Among those ones, Resource Description Framework Schema (RDFS) and Web Ontology Language (OWL) are the two popular languages. OWL is considered as an extension of the RDFS to get rid of the disadvantages of RDFS. Nowadays, OWL is being seen as the standard language for building ontology. OWL is a language describing the classes, properties and relationships between these objects in a way that computer can understand web contents. The objective of World Wide Web Consortium (W3C) is to transform the current web into semantic web with to reuse the previous system [1]. Many previous systems were built based on