315 search results - page 43 / 63 » Runtime Optimization of Continuous Queries |
100
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DOLAP
2000
ACM
15 years 4 months ago
2000
ACM
Being able to efficiently answer arbitrary OLAP queries that aggregate along any combination of dimensions over numerical and categorical attributes has been a continued, major co...
109
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VLDB
2004
ACM
15 years 5 months ago
2004
ACM
In data stream applications, data arrive continuously and can only be scanned once as the query processor has very limited memory (relative to the size of the stream) to work with...
195
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ICDE
2003
IEEE
16 years 1 months ago
2003
IEEE
We present a query architecture in which join operators are decomposed into their constituent data structures (State Modules, or SteMs), and dataflow among these SteMs is managed ...
194
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ICSOC
2010
Springer
14 years 10 months ago
2010
Springer
Abstract. As the dynamicity of today's business environments keeps increasing, there is a need to continuously adapt business processes in order to respond to the changes in t...
VLDB
2004
ACM
15 years 5 months ago
2004
ACM
The use of inaccurate or outdated database statistics by the query optimizer in a relational DBMS often results in a poor choice of query execution plans and hence unacceptably lo...