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Ontology Based Relational Database Access

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dc.contributor.author TAKIA, HADJIRA
dc.date.accessioned 2018-07-04T09:19:49Z
dc.date.available 2018-07-04T09:19:49Z
dc.date.issued 2018
dc.identifier.uri http://dspace.univ-msila.dz:8080//xmlui/handle/123456789/5152
dc.description.abstract Ontology based relational data bases access approach (OBDA) is a crucial main of semantic web. In that approach, the user specifies a query, using the TBox of the ontology. This query is rewritten into a set of queries. The rewritten queries are answered using the ABox of the ontology only. In our case the ABox is represented by a relational data base and a mapping process between the ontology and a data base is proposed. The advantage of the OBDA is that a database query then should return not only the data that is stored explicitly in the database, but also additional facts that can be inferred from it using the ontological information by rewriting process. There are many algorithms for rewriting problem, in this work we use the algorithm of D. Calvanese which is based on description logics (DL). For this reason, we explore different family of such DL. We discuss also, sublanguages of ontology web languages (OWL) and explain their relationship with our problem. en_US
dc.language.iso en en_US
dc.subject Ontology, OWL, OBDA, DL, data bases. en_US
dc.title Ontology Based Relational Database Access en_US
dc.type Thesis en_US

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