58 search results - page 1 / 12 » Optimized query planning of continuous aggregation queries i... |
108
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WWW
2007
ACM
16 years 3 days ago
2007
ACM
Continuous queries are used to monitor changes to time varying data and to provide results useful for online decision making. Typically a user desires to obtain the value of some ...
208
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TKDE
2012
13 years 1 months ago
2012
—Continuous queries are used to monitor changes to time varying data and to provide results useful for online decision making. Typically a user desires to obtain the value of som...
128
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SSD
2007
Springer
15 years 5 months ago
2007
Springer
We address continuously processing an aggregation join query over data streams. Queries of this type involve both join and aggregation operations, with windows specified on join ...
120
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EDBTW
2006
Springer
15 years 3 months ago
2006
Springer
A data stream management system executes a large number of continuous queries in parallel. As stream characteristics and query workload change over time, the plan initially install...
121
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ADHOCNOW
2008
Springer
15 years 17 days ago
2008
Springer
This paper presents a novel method for optimizing sliding window based continuous queries. We deal with two categories of aggregation operations: stepwise aggregation (e.g. COUNT) ...