7576 search results - page 303 / 1516 » On Querying Ontologies and Databases |
275
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ICDE
1999
IEEE
16 years 8 months ago
1999
IEEE
On the Internet, the limited query-processing capabilities of sources make answering even the simplest queries challenging. In this paper, we present a scheme called GenCompact fo...
177
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ADBIS
2009
Springer
16 years 1 months ago
2009
Springer
Abstract. We consider the problem of query containment for conjunctive queries with the safe negation property. Some necessary conditions for this problem are given. A part of the ...
168
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AI
2007
Springer
16 years 29 days ago
2007
Springer
Many researchers have used text classification method in solving the ontology mapping problem. Their mapping results heavily depend on the availability of quality exemplars used as...
187
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WIDM
2005
ACM
16 years 9 days ago
2005
ACM
This paper describes a framework for ontology-based flexible discovery of Semantic Web services. The proposed approach relies on user-supplied, context-specific mappings from an...
190
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ICWE
2004
Springer
16 years 4 days ago
2004
Springer
Current Web Engineering methods develop "closed" web applications from conceptual models. This fact makes difficult the integration and the interoperability of different ...