Happy Ever After: Temporally Attributed Description Logics

Ana OzakiAna Ozaki, Markus KrötzschMarkus Krötzsch, Sebastian RudolphSebastian Rudolph

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Ana Ozaki, Markus Krötzsch, Sebastian Rudolph
Happy Ever After: Temporally Attributed Description Logics
In Magdalena Ortiz, Thomas Schneider, eds., Proceedings of the 31st International Workshop on Description Logics (DL 2018), volume 2211 of CEUR Workshop Proceedings, 2018. CEUR-WS.org

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KurzfassungAbstract
Knowledge graphs are based on graph models enriched with (sets of) attribute-value pairs, called annotations, attached to vertices and edges. Many application scenarios of knowledge graphs crucially rely on the frequent use of annotations related to time. Based on recently proposed attributed logics, we design description logics enriched with temporal annotations whose values are interpreted over discrete time. Investigating the complexity of reasoning in this new formalism, it turns out that reasoning in our temporally attributed description logic ALCHT@ is highly undecidable; thus we establish restrictions where it becomes decidable, and even tractable.
Projekt:Project: Cfaed, DIAMOND, DeciGUT, HAEC B08
Forschungsgruppe:Research Group: Computational LogicComputational Logic, Wissensbasierte SystemeKnowledge-Based Systems

@inproceedings{OKR2018,
  author    = {Ana Ozaki and Markus Kr{\"{o}}tzsch and Sebastian Rudolph},
  title     = {Happy Ever After: Temporally Attributed Description Logics},
  editor    = {Magdalena Ortiz and Thomas Schneider},
  booktitle = {Proceedings of the 31st International Workshop on Description
               Logics (DL 2018)},
  series    = {CEUR Workshop Proceedings},
  volume    = {2211},
  publisher = {CEUR-WS.org},
  year      = {2018}
}