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» Paraconsistent Reasoning for OWL 2
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OWLED
2008
13 years 9 months ago
The OWL in the CASL - Designing Ontologies Across Logics
Abstract. In this paper, we show how the web ontology language OWL can be accommodated within the larger framework of the heterogeneous common algebraic specification language HETC...
Oliver Kutz, Dominik Lücke, Till Mossakowski,...
DLOG
2011
12 years 11 months ago
Goal-oriented Query Rewriting for OWL 2 QL
We present an optimized query rewriting algorithm for OWL 2 QL that computes the rewriting set of a user query by avoiding unnecessary inferences and extended clause subsumption ch...
Alexandros Chortaras, Despoina Trivela, Giorgos B....
DLOG
2011
12 years 11 months ago
Module Extraction via Query Inseparability in OWL 2 QL
We show that deciding conjunctive query inseparability for OWL 2 QL ontologies is PSpace-hard and in ExpTime. We give polynomial-time (incomplete) algorithms and demonstrate by exp...
Boris Konev, Roman Kontchakov, Michel Ludwig, Thom...
DLOG
2011
12 years 11 months ago
Status QIO: An Update
We prove co-N2ExpTime-hardness for conjunctive query entailment in the description logic ALCOIF , thus improving the previously known 2ExpTime lower bound. The result transfers to ...
Birte Glimm, Yevgeny Kazakov, Carsten Lutz
RR
2009
Springer
14 years 2 months ago
On the Ostensibly Silent 'W' in OWL 2 RL
In this paper, we discuss the draft OWL 2 RL profile from the perspective of applying the constituent rules over Web data. In particular, borrowing from previous work, we discuss ...
Aidan Hogan, Stefan Decker