24421 search results - page 4304 / 4885 » Communicating Complex Systems |
285
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VLDB
2003
ACM
16 years 7 months ago
2003
ACM
Data warehousing systems integrate information from operational data sources into a central repository to enable analysis and mining of the integrated information. During the integ...
275
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SIGMOD
2007
ACM
16 years 7 months ago
2007
ACM
Accurate cardinality estimation is critically important to high-quality query optimization. It is well known that conventional cardinality estimation based on histograms or simila...
303
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SIGMOD
2007
ACM
16 years 7 months ago
2007
ACM
The family of threshold algorithm (i.e., TA) has been widely studied for efficiently computing top-k queries. TA uses a sort-merge framework that assumes data lists are pre-sorted...
280
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SIGMOD
2007
ACM
16 years 7 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...
274
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SIGMOD
2007
ACM
16 years 7 months ago
2007
ACM
We have developed new methods for log-based recovery for middleware servers which involve thread pooling, private inmemory states for clients, shared in-memory state and message i...