620 search results - page 114 / 124 » Algorithms for Rewriting Aggregate Queries Using Views |
164
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SIGMOD
2007
ACM
15 years 12 months ago
2007
ACM
Commercial enterprise data warehouses are typically implemented on parallel databases due to the inherent scalability and performance limitation of a serial architecture. Queries ...
SIGMOD
2003
ACM
15 years 12 months ago
2003
ACM
The Aurora system [1] is an experimental data stream management system with a fully functional prototype. It includes both a graphical development environment, and a runtime syste...
110
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PODC
2006
ACM
15 years 5 months ago
2006
ACM
We study the problem of maintaining sketches of recent elements of a data stream. Motivated by applications involving network data, we consider streams that are asynchronous, in w...
198
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ICDE
2007
IEEE
16 years 1 months ago
2007
IEEE
This paper addresses the problem of efficient maintenance of a materialized skyline view in response to skyline removals. While there has been significant progress on skyline quer...
121
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ICASSP
2011
IEEE
14 years 3 months ago
2011
IEEE
Recognizing the location and orientation of a mobile device from captured images is a promising application of image retrieval algorithms. Matching the query images to an existing...