7607 search results - page 89 / 1522 » Querying data provenance |
DEBU
2000
14 years 11 months ago
2000
Execution plans produced by traditional query optimizers for data integration queries may yield poor performance for several reasons. The cost estimates may be inaccurate, the mem...
207
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ICDE
2003
IEEE
16 years 1 months ago
2003
IEEE
In moving object environments, it is infeasible for the database tracking the movement of objects to store the exact locations of objects at all times. Typically, the location of a...
SBBD
2007
15 years 1 months ago
2007
Integrating geographical and multidimensional processing has been proposed in several researches in the database literature. One of the most important issues of this process is dat...
138
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PVLDB
2008
14 years 10 months ago
2008
A Reverse k-Nearest-Neighbor (RkNN) query finds the objects that take the query object as one of their k nearest neighbors. In this paper we propose new solutions for evaluating R...
118
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IJCIS
1998
14 years 11 months ago
1998
We present the systematic design and development of a distributed query scheduling service DQS in the context of DIOM, a distributed and interoperable query mediation system 26 ...