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» Processing complex aggregate queries over data streams
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SAC
2009
ACM
15 years 9 months ago
Adaptive burst detection in a stream engine
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...
Marcel Karnstedt, Daniel Klan, Christian Pöli...
PODS
2006
ACM
217views Database» more  PODS 2006»
16 years 3 months ago
A simpler and more efficient deterministic scheme for finding frequent items over sliding windows
In this paper, we give a simple scheme for identifying approximate frequent items over a sliding window of size n. Our scheme is deterministic and does not make any assumption on ...
Lap-Kei Lee, H. F. Ting
VLDB
2001
ACM
144views Database» more  VLDB 2001»
16 years 3 months ago
Approximate query processing using wavelets
Approximate query processing has emerged as a costeffective approach for dealing with the huge data volumes and stringent response-time requirements of today's decision-suppo...
Kaushik Chakrabarti, Minos N. Garofalakis, Rajeev ...
ISCC
2008
IEEE
122views Communications» more  ISCC 2008»
15 years 9 months ago
A flexible network monitoring tool based on a data stream management system
Network monitoring is a complex task that generally requires the use of different tools for specific purposes. This paper describes a flexible network monitoring tool, called Pa...
Natascha Petry Ligocki, Carmem S. Hara, Christiano...
IPSN
2007
Springer
15 years 9 months ago
The regiment macroprogramming system
The development of high-level programming environments is essential if wireless sensor networks are to be accessible to nonexperts. In this paper, we present the Regiment system, ...
Ryan Newton, Greg Morrisett, Matt Welsh