6004 search results - page 679 / 1201 » Parallelizing query optimization |
127
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IJACTAICIT
2010
15 years 2 months ago
2010
In this article, a hybrid optimization method has been proposed consisting of modified ant colony systems (ACSs) and constrained nonlinear programming (NLP) to solve the problems ...
130
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SIGMOD
1999
ACM
15 years 9 months ago
1999
ACM
Pre-computation and materialization of views with aggregate functions is a common technique in Data Warehouses. Due to the complex structure of the warehouse and the different pro...
129
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IPPS
2009
IEEE
15 years 11 months ago
2009
IEEE
Stencil computation (SC) is of critical importance for broad scientific and engineering applications. However, it is a challenge to optimize complex, highorder SC on emerging clus...
295
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ICDE
2006
IEEE
16 years 6 months ago
2006
IEEE
Given an object q, modeled by a multidimensional point, a reverse nearest neighbors (RNN) query returns the set of objects in the database that have q as their nearest neighbor. I...
133
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STOC
2002
ACM
16 years 5 months ago
2002
ACM
Given a set S of n points in IRd , a (t, )-approximate Voronoi diagram (AVD) is a partition of space into constant complexity cells, where each cell c is associated with t represe...