4438 search results - page 258 / 888 » Speculative Query Processing |
287
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ICDE
2007
IEEE
16 years 8 months ago
2007
IEEE
Position updates and query re-evaluations are two predominant, costly components of processing location-based, continual queries (CQs) in mobile systems. To obtain high-quality qu...
235
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SSDBM
1999
IEEE
15 years 11 months ago
1999
IEEE
Large scale data analysis and mining activities, such as identifying interesting trends, making unusual patterns to stand out and verifying hypotheses, require sophisticated infor...
175
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ICDT
1995
ACM
15 years 10 months ago
1995
ACM
We investigate and compare two forms of recursion on sets for querying nested collections. The rst one is called sri and it corresponds to sequential processing of data. The second...
279
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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...
196
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SIGMOD
2002
ACM
16 years 7 months ago
2002
ACM
Physical database design is important for query performance in a shared-nothing parallel database system, in which data is horizontally partitioned among multiple independent node...