3368 search results - page 154 / 674 » The Complexity of Query Reliability |
190
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SIGMOD
2007
ACM
16 years 2 months ago
2007
ACM
Good cardinality estimates are critical for generating good execution plans during query optimization. Complex predicates, correlations between columns, and user-defined functions...
110
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PODS
2004
ACM
16 years 2 months ago
2004
ACM
The important challenge of evaluating XPath queries over XML streams has sparked much interest in the past few years. A number of algorithms have been proposed, supporting wider f...
128
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ITCC
2005
IEEE
15 years 8 months ago
2005
IEEE
Declustering techniques reduce query response times through parallel I/O by distributing data among multiple devices. Most of the research on declustering is targeted at spatial r...
117
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CVPR
1997
IEEE
15 years 6 months ago
1997
IEEE
We describe a new multi-phase, color-based image retrieval system, FOCUS Fast Object Color-based qUery System , with an online user interface which is capable of identifying mult...
JSA
2006
15 years 2 months ago
2006
In this paper, we propose a schema version model which allows to restructure complex object hierarchy in object-oriented databases. This model extends a schema version model, call...