3969 search results - page 45 / 794 » Query Processing Using Ontologies |
131
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DLOG
2011
14 years 5 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...
IADIS
2008
15 years 3 months ago
2008
Data mining has emerged to address the problem of transforming data into useful knowledge. Although most data mining techniques, such as Association Rules, substantially reduce th...
105
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WWW
2004
ACM
16 years 2 months ago
2004
ACM
In peer-to-peer networks, finding the appropriate answer for an information request, such as the answer to a query for RDF(S) data, depends on selecting the right peer in the netw...
84
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AIME
2005
Springer
15 years 7 months ago
2005
Springer
135
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COOPIS
2002
IEEE
15 years 7 months ago
2002
IEEE
This paper presents a specifically database-inspired approach (called DOGMA) for engineering formal ontologies, implemented as shared resources used to express agreed formal semant...