7576 search results - page 336 / 1516 » On Querying Ontologies and Databases |
138
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DEXAW
2004
IEEE
15 years 10 months ago
2004
IEEE
In this paper we propose a Web Services based solution to exchange learner's information among different elearning systems described following a Web Ontology. The Web Service...
181
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JANCL
2006
15 years 6 months ago
2006
This paper describes an experimental platform for approximate knowledge databases called the Approximate Knowledge Database (AKDB), based on a semantics inspired by rough sets. The...
182
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ECAI
2004
Springer
16 years 6 days ago
2004
Springer
This paper presents an ontology-based approach for web querying, using semantic metadata. We propose a query language based on ontologies and emphasize its ability to express appro...
220
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DLOG
2011
14 years 10 months ago
2011
Query answering in Ontology Based Data Access (OBDA) exploits the knowledge of an ontology’s TBox to deal with incompleteness of the ABox (or data source). Current query-answerin...
186
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RP
2010
Springer
15 years 4 months ago
2010
Springer
Efficient reachability query answering in large directed graphs has been intensively investigated because of its fundamental importance in many application fields such as XML data ...