649 search results - page 47 / 130 » Improved and Optimized Partitioning Techniques in Database Q... |
135
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SIGMOD
2001
ACM
16 years 2 months ago
2001
ACM
Materialized views have been found to be very effective at speeding up queries, and are increasingly being supported by commercial databases and data warehouse systems. However, w...
130
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IDEAS
2008
IEEE
15 years 8 months ago
2008
IEEE
With more and more natural language text stored in databases, handling respective query predicates becomes very important. Optimizing queries with predicates includes (sub)string ...
123
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DOLAP
2004
ACM
15 years 7 months ago
2004
ACM
Parallelism can be used for major performance improvement in large Data warehouses (DW) with performance and scalability challenges. A simple low-cost shared-nothing architecture ...
131
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ADL
2000
Springer
15 years 6 months ago
2000
Springer
The goal of this work is to improve the accuracy (precision and recall) and communication effectiveness of a database system response to a user information request, by utilizing a...
203
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ICDE
1999
IEEE
16 years 3 months ago
1999
IEEE
We develop a data integration approach for the efficient evaluation of queries over autonomous source databases. The approach is based on some novel applications and extensions of...