New Expressive Languages for Ontological Query Answering

  title={New Expressive Languages for Ontological Query Answering},
  author={Andrea Cal{\`i} and Georg Gottlob and Andreas Pieris},
Ontology-based data access is a powerful form of extending database technology, where a classical extensional database (EDB) is enhanced by an ontology that generates new intensional knowledge which may contribute to answer a query. Recently, the Datalog± family of ontology languages was introduced; in Datalog±, rules are tuple-generating dependencies (TGDs), i.e., Datalog rules with the possibility of having existentially-quantified variables in the head. In this paper we introduce a novel… CONTINUE READING
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Publications referenced by this paper.
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All Elephants are Bigger than All Mice

View 4 Excerpts
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Linking Data to Ontologies

J. Data Semantics • 2008
View 9 Excerpts
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The Implication Problem for Data Dependencies

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