Querying Ontology Based Database Using OntoQL (An Ontology Query Language)

  • Stéphane Jean
  • Yamine Aït-Ameur
  • Guy Pierra
Part of the Lecture Notes in Computer Science book series (LNCS, volume 4275)


Nowadays, ontologies are used in several research domains by offering the means to describe and represent concepts of information sources. Therefore, several approaches and systems storing ontologies and their instances in the same repository (database) have been proposed. As a consequence, defining a query language to support ontology-based database (OBDB) becomes a challenge for the database community. In this paper, we present OntoQL, an ontology query language for OBDBs. Firstly, we present formally the OBDB data model supported by this language. Secondly, an overview of the algebra defining the semantics of operators used in OntoQL is described. Several query examples showing the interest of this language compared to traditional database query languages are given along this paper. Finally, we present a prototype of the implementation of OntoQL.


Query Language Exploitation Language Query Optimization Ontology Model Database Model 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


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Copyright information

© Springer-Verlag Berlin Heidelberg 2006

Authors and Affiliations

  • Stéphane Jean
    • 1
  • Yamine Aït-Ameur
    • 1
  • Guy Pierra
    • 1
  1. 1.LISI-ENSMA and University of PoitiersFuturoscope CedexFrance

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