2724 search results - page 91 / 545 » Optimizing Queries on Files |
138
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EDBT
2012
ACM
13 years 5 months ago
2012
ACM
We present an effective optimization framework for general SQLlike map-reduce queries, which is based on a novel query algebra and uses a small number of higher-order physical ope...
135
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HICSS
2011
IEEE
14 years 7 months ago
2011
IEEE
— Decision optimization is used in many applications such as those for finding the best course of action in emergencies. However, optimization solutions require considerable mat...
125
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SIGMOD
2008
ACM
15 years 3 months ago
2008
ACM
Automated physical design tuning for database systems has recently become an active area of research and development. Existing tuning tools explore the space of feasible solutions...
236
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ICDE
1998
IEEE
16 years 4 months ago
1998
IEEE
We have developed a MultiMedia Visual Information Seeking (MMVIS) Environment that is the first system to support an integrated approach to the direct manipulation specification o...
211
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ICDE
2006
IEEE
16 years 4 months ago
2006
IEEE
Wireless sensor networks generate a vast amount of data. This data, however, must be sparingly extracted to conserve energy, usually the most precious resource in battery-powered ...