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» Aggregating time partitions
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ICIP
2009
IEEE
14 years 8 months ago
Real Time Stereo Vision Using Exponential Step Cost Aggregation On Gpu
In this paper, we propose a local cost aggregation approach for real time stereo vision on a graphics processing unit (GPU). Recent research shows that local approaches based on c...
TISSEC
2008
235views more  TISSEC 2008»
13 years 7 months ago
SDAP: A Secure Hop-by-Hop Data Aggregation Protocol for Sensor Networks
Hop-by-hop data aggregation is a very important technique for reducing the communication overhead and energy expenditure of sensor nodes during the process of data collection in a...
Yi Yang, Xinran Wang, Sencun Zhu, Guohong Cao
ICDE
2003
IEEE
96views Database» more  ICDE 2003»
14 years 8 months ago
Pushing Aggregate Constraints by Divide-and-Approximate
Iceberg-cube mining is to compute the GROUP BY partitions, for all GROUP BY dimension lists, that satisfy a given aggregate constraint. Previous works have pushed anti-monotone co...
Ke Wang, Yuelong Jiang, Jeffrey Xu Yu, Guozhu Dong...
SIGMOD
2004
ACM
148views Database» more  SIGMOD 2004»
14 years 7 months ago
Vertical and Horizontal Percentage Aggregations
Existing SQL aggregate functions present important limitations to compute percentages. This article proposes two SQL aggregate functions to compute percentages addressing such lim...
Carlos Ordonez
EDBT
2009
ACM
117views Database» more  EDBT 2009»
13 years 10 months ago
Parsimonious temporal aggregation
Temporal aggregation is a crucial operator in temporal databases and has been studied in various flavors. In instant temporal aggregation (ITA) the aggregate value at time instan...
Juozas Gordevicius, Johann Gamper, Michael H. B&ou...