1709 search results - page 212 / 342 » Comparing the Performance of Database Selection Algorithms |
156
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VLDB
1987
ACM
15 years 9 months ago
1987
ACM
Severalmethodshavebeenproposedto compile recursive Datalog programs. The most well-known perform a rewriting of rules using MAGIC or PROBLEM predicates in order to push selections...
174
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PVLDB
2010
15 years 4 months ago
2010
Optimization of join queries based on average selectivities is suboptimal in highly correlated databases. In such databases, relations are naturally divided into partitions, each ...
248
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ICDE
2012
IEEE
13 years 8 months ago
2012
IEEE
— We consider the approximate string membership checking (ASMC) problem of extracting all the strings or substrings in a document that approximately match some string in a given ...
258
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ICDE
2004
IEEE
16 years 7 months ago
2004
IEEE
This paper introduces a novel method of rights protection for categorical data through watermarking. We discover new watermark embedding channels for relational data with categori...
181
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SIGMOD
2003
ACM
16 years 6 months ago
2003
ACM
Abstract-- Sensor networks are typically unattended because of their deployment in hazardous, hostile or remote environments. This makes the problem of conserving energy at individ...