4382 search results - page 264 / 877 » Query by Semantic Example |
139
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SWAP
2007
15 years 4 months ago
2007
Abstract. A nearest neighbor search procedure is presented, for retrieving resources in knowledge bases expressed in OWL. The procedure exploits a semidistance for annotated resour...
152
Voted
CORR
2011
Springer
14 years 10 months ago
2011
Springer
Abstract. We present a categorical denotational semantics for a database mapping, based on views, in the most general framework of a database integration/exchange. Developed databa...
202
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SIGMOD
2005
ACM
16 years 3 months ago
2005
ACM
We give semantic characterizations of the expressive power of navigational XPath (also called Core XPath) in terms of first order logic. XPath can be used to specify sets of nodes...
134
Voted
SEMCO
2007
IEEE
15 years 9 months ago
2007
IEEE
Effective usage of multimedia digital libraries has to deal with the problem of building efficient content annotation and retrieval tools. In this paper Multimedia Ontologies, th...
131
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OTM
2007
Springer
15 years 9 months ago
2007
Springer
We show how Semantic Web technologies can be used to build an access control system. We follow the role-based access control approach (RBAC) and extend it with contextual attribute...