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Temporal Conjunctive Queries in Expressive Description Logics with Transitive Roles

  • Franz Baader
  • Stefan Borgwardt
  • Marcel Lippmann
Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 9457)

Abstract

In Ontology-Based Data Access (OBDA), user queries are evaluated over a set of facts under the open world assumption, while taking into account background knowledge given in the form of a Description Logic (DL) ontology. In order to deal with dynamically changing data sources, temporal conjunctive queries (TCQs) have recently been proposed as a useful extension of OBDA to support the processing of temporal information. We extend the existing complexity analysis of TCQ entailment to very expressive DLs underlying the OWL 2 standard, and in contrast to previous work also allow for queries containing transitive roles.

Keywords

Description Logic Conjunctive Query Satisfiability Problem Temporal Query Combine Complexity 
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 International Publishing Switzerland 2015

Authors and Affiliations

  • Franz Baader
    • 1
  • Stefan Borgwardt
    • 1
  • Marcel Lippmann
    • 1
  1. 1.Theoretical Computer ScienceTU DresdenDresdenGermany

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