3775 search results - page 649 / 755 » Uncertainty and the Semantic Web |
162
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SWAP
2008
15 years 7 months ago
2008
Abstract. The limitations of deductive logic-based approaches at deriving operational knowledge from ontologies may be overcome by inductive (instancebased) methods, which are usua...
281
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GIS
2008
ACM
16 years 7 months ago
2008
ACM
In this paper, we follow the role-based access control (RBAC) approach and extend it to provide for the dynamic association of roles with users. In our framework, privileges assoc...
178
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WWW
2009
ACM
16 years 7 months ago
2009
ACM
The emergence of Semantic Web technologies and standards such as Resource Description Framework (RDF) has introduced novel data storage models such as the RDF Graph Model. In this...
130
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WWW
2008
ACM
16 years 7 months ago
2008
ACM
In this paper we examine 1) the scope of geo-ontologies used especially for the purposes of information retrieval on the Web, 2) the core geographical concepts and their mutual re...
161
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WWW
2007
ACM
16 years 7 months ago
2007
ACM
We describe an approach designed to reduce the costs of ontology development through the use of untrained, volunteer knowledge engineers. Results are provided from an experiment i...