Sciweavers

96 search results - page 7 / 20
» Load Shedding for Aggregation Queries over Data Streams
Sort
View
EDBTW
2006
Springer
15 years 1 months ago
Spatio-temporal Aggregates over Streaming Geospatial Image Data
Geospatial image data obtained by satellites and aircraft are increasingly important to a wide range of applications, such as disaster management, climatology, and environmental m...
Jie Zhang
85
Voted
EDBT
2008
ACM
137views Database» more  EDBT 2008»
15 years 9 months ago
Optimizing away joins on data streams
Abstract. Monitoring aggregates on IP traffic data streams is a compelling application for data stream management systems. Often, such streaming aggregation queries involve joining...
Lukasz Golab, Theodore Johnson, Nick Koudas, Dives...
ICDE
2012
IEEE
228views Database» more  ICDE 2012»
12 years 12 months ago
A General Method for Estimating Correlated Aggregates over a Data Stream
—On a stream of two dimensional data items (x, y) where x is an item identifier, and y is a numerical attribute, a correlated aggregate query requires us to first apply a selec...
Srikanta Tirthapura, David P. Woodruff
192
Voted
GIS
2004
ACM
15 years 10 months ago
Spatio-temporal aggregates over raster image data
Spatial, temporal and spatio-temporal aggregates over continuous streams of remotely sensed image data build a fundamental operation in many applications in the environmental scie...
Jie Zhang, Michael Gertz, Demet Aksoy
ACIIDS
2009
IEEE
144views Database» more  ACIIDS 2009»
15 years 2 months ago
Processing Exact Results for Sliding Window Joins over Time-Sequence, Streaming Data Using a Disk Archive
— We consider the problem of processing exact results for sliding window joins over data streams with limited memory. Existing approaches deal with memory limitations by shedding...
Abhirup Chakraborty, Ajit Singh