7576 search results - page 390 / 1516 » On Querying Ontologies and Databases |
200
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INEX
2004
Springer
16 years 1 months ago
2004
Springer
Abstract. Can a system designed primarily for the purpose of databasetype storage and retrieval be used for information-retrieval tasks? This was one of the questions that led us t...
309
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ICDE
2007
IEEE
16 years 9 months ago
2007
IEEE
In this demo we present X-Time, a prototype for managing schema versioning in relational data warehouses, specifically oriented to support the formulation of crossversion queries,...
291
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ICDE
1995
IEEE
16 years 9 months ago
1995
IEEE
While much work has addressed the problem of maintaining materialized views, the important question of optimizing queries in the presence of materialized views has not been resolv...
198
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ESA
2004
Springer
15 years 11 months ago
2004
Springer
The ability to represent and query continuously moving objects is important in many applications of spatio-temporal database systems. In this paper we develop data structures for ...
185
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FQAS
2006
Springer
15 years 11 months ago
2006
Springer
The use of the Yager's OWA operators within a flexible querying interface is discussed. The key issue is the adaptation of an OWA operator to the specifics of a user's qu...