2514 search results - page 194 / 503 » On the Computation of Approximations of Database Queries |
159
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ICDM
2007
IEEE
16 years 27 days ago
2007
IEEE
There has been a recent surge in work in probabilistic databases, propelled in large part by the huge increase in noisy data sources — sensor data, experimental data, data from ...
264
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ICDE
2009
IEEE
16 years 8 months ago
2009
IEEE
Many location-based services require rich and expressive query language support for filtering large amounts of information. In prominent location-based services thousands of conti...
163
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SSDBM
2009
IEEE
16 years 1 months ago
2009
IEEE
We present a novel sensor network query processing architecture that (a) covers all the query optimization phases that are required to map a declarative query to executable code; ...
192
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CIKM
2005
Springer
16 years 4 days ago
2005
Springer
Modern query optimizers select an efficient join ordering for a physical execution plan based essentially on the average join selectivity factors among the referenced tables. In ...
157
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ALENEX
2004
15 years 8 months ago
2004
Given a terrain T and a point p on or above it, we wish to compute the region Rp that is visible from p. We present a generic radar-like algorithm for computing an approximation o...