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» Data Complexity in the EL family of DLs
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LPAR
2007
Springer
13 years 11 months ago
Data Complexity in the EL Family of Description Logics
We study the data complexity of instance checking and conjunctive query answering in the EL family of description logics, with a particular emphasis on the boundary of tractability...
Adila Krisnadhi, Carsten Lutz
KR
2010
Springer
13 years 9 months ago
Probabilistic Description Logics for Subjective Uncertainty
We propose a new family of probabilistic description logics (DLs) that, in contrast to most existing approaches, are derived in a principled way from Halpern’s probabilistic fi...
Carsten Lutz, Lutz Schröder
AAAI
2010
13 years 6 months ago
Soundness Preserving Approximation for TBox Reasoning
Large scale ontology applications require efficient and robust description logic (DL) reasoning services. Expressive DLs usually have very high worst case complexity while tractab...
Yuan Ren, Jeff Z. Pan, Yuting Zhao
JAPLL
2010
179views more  JAPLL 2010»
13 years 3 months ago
Tractable query answering and rewriting under description logic constraints
Answering queries over an incomplete database w.r.t. a set of constraints is an important computational task with applications in fields as diverse as information integration and ...
Héctor Pérez-Urbina, Boris Motik, Ia...