9683 search results - page 643 / 1937 » Predicting query performance |
204
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PVLDB
2010
15 years 5 months ago
2010
Optimization of join queries based on average selectivities is suboptimal in highly correlated databases. In such databases, relations are naturally divided into partitions, each ...
210
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DMSN
2010
ACM
15 years 5 months ago
2010
ACM
Complex event processing (CEP) has become increasingly important for tracking and monitoring applications ranging from health care, supply chain management to surveillance. These ...
214
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ICIP
2010
IEEE
15 years 5 months ago
2010
IEEE
In this paper, we focus on a new application of mobile visual search: snapping a photo with a mobile device of a video playing on a TV screen to automatically retrieve and stream ...
225
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GIS
2009
ACM
15 years 5 months ago
2009
ACM
Privacy preservation has recently received considerable attention for location-based mobile services. Various location cloaking approaches have been proposed to protect the locati...
258
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TWC
2011
15 years 1 months ago
2011
Abstract—We target a two-tier sensor network with resourcerich master nodes at the upper tier and resource-poor sensor nodes at the lower tier. Master nodes collect data from sen...