144 search results - page 10 / 29 » The FMA in OWL 2 |
128
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DLOG
2011
14 years 4 months ago
2011
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...
122
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DLOG
2011
14 years 4 months ago
2011
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...
120
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DLOG
2010
14 years 10 months ago
2010
ABox Reasoning in large scale description logic (DL) knowledge bases, e.g. ontologies, is important for the success of many semantic-enriched systems. Performance of existing appro...
96
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ISEMANTICS
2010
15 years 1 months ago
2010
This paper gives an account of how traditional metadata application profiles are related to Web ontologies and Description Logics. It is shown that metadata profiles can be formal...
89
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SEMWEB
2009
Springer
15 years 7 months ago
2009
Springer
Ontologies are entities that evolve over time, therefore it is essential to represent and manage changes to ontologies along with the ontologies themselves. In this paper we propos...