625 search results - page 7 / 125 » Genetic algorithms for large join query optimization |
149
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GIS
2006
ACM
15 years 10 months ago
2006
ACM
This paper presents a query optimizer module based on cost estimation that chooses the best filtering step algorithm to perform a specific spatial join operation. A set of express...
CIKM
2005
Springer
15 years 3 months 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 ...
CIKM
1994
Springer
15 years 1 months ago
1994
Springer
TID hash joins are a simple and memory-efficient method for processing large join queries. They are based on standard hash join algorithms but only store TID/key pairs in the hash...
101
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ICDM
2002
IEEE
15 years 2 months ago
2002
IEEE
The similarity join has become an important database primitive to support similarity search and data mining. A similarity join combines two sets of complex objects such that the r...
94
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ICDE
2011
IEEE
14 years 1 months ago
2011
IEEE
— Uncertain data is quite common nowadays in a variety of modern database applications. At the same time, the join operation is one of the most important but expensive operations...