3969 search results - page 453 / 794 » Query Processing Using Ontologies |
167
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DASFAA
2003
IEEE
15 years 11 months ago
2003
IEEE
To integrate many data sources we use a peer mediator framework where views defined in the peers are logically composed in terms of each other. A common approach to execute queri...
189
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CLEF
2006
Springer
15 years 10 months ago
2006
Springer
This paper describes the participation of Columbus Project of Microsoft Research Asia (MSRA) in the GeoCLEF 2006 (a cross-language geographical retrieval track which is part of Cr...
193
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SIGMOD
2010
ACM
15 years 4 months ago
2010
ACM
One useful feature that is missing from today’s database systems is an explain capability that enables users to seek clarifications on unexpected query results. There are two t...
169
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GEOS
2007
Springer
16 years 15 days ago
2007
Springer
SDIs offer access to a wealth of distributed data sources through standardised service interfaces. Recently, also geoprocessing capabilities are offered as services in SDIs. Combin...
184
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EKAW
2004
Springer
15 years 11 months ago
2004
Springer
Abstract. Augmenting web pages with semantic contents, i.e., building a ‘Semantic Web’, promises a number of benefits for web users in general and learners in particular. Seman...