964 search results - page 105 / 193 » Efficiently Ordering Query Plans for Data Integration |
132
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TWC
2010
14 years 11 months ago
2010
Abstract--In this paper, we deal with the performance of nonorthogonal Amplify-and-Forward protocols over block-fading channels (BFNAF), where the source retransmits the same data ...
154
Voted
VLDB
2004
ACM
15 years 10 months ago
2004
ACM
Top-k queries based on ranking elements of multidimensional datasets are a fundamental building block for many kinds of information discovery. The best known general-purpose algor...
182
Voted
CORR
2010
Springer
14 years 11 months ago
2010
Springer
In this paper we describe a new efficient (in fact optimal) data structure for the top-K color problem. Each element of an array A is assigned a color c with priority p(c). For a ...
141
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DASFAA
2003
IEEE
15 years 10 months ago
2003
IEEE
To integrate many data sources we use a peer mediator framework where views defined in the peers are logically composed in terms of each other. A common approach to execute queri...
145
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SAC
2009
ACM
15 years 11 months ago
2009
ACM
Detecting bursts in data streams is an important and challenging task. Due to the complexity of this task, usually burst detection cannot be formulated using standard query operat...