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» Closure Operators for Order Structures
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222
Voted
ICDE
2003
IEEE
138views Database» more  ICDE 2003»
16 years 3 months ago
Using State Modules for Adaptive Query Processing
We present a query architecture in which join operators are decomposed into their constituent data structures (State Modules, or SteMs), and dataflow among these SteMs is managed ...
Vijayshankar Raman, Amol Deshpande, Joseph M. Hell...
PAMI
2008
121views more  PAMI 2008»
15 years 2 months ago
Theoretical Foundations of Spatially-Variant Mathematical Morphology Part II: Gray-Level Images
In this paper, we develop a spatially-variant (SV) mathematical morphology theory for gray-level signals and images in the euclidean space. The proposed theory preserves the geomet...
Nidhal Bouaynaya, Dan Schonfeld
PVLDB
2010
118views more  PVLDB 2010»
15 years 27 days ago
Ten Thousand SQLs: Parallel Keyword Queries Computing
Keyword search in relational databases has been extensively studied. Given a relational database, a keyword query finds a set of interconnected tuple structures connected by fore...
Lu Qin, Jefferey Yu, Lijun Chang
97
Voted
WWW
2007
ACM
16 years 3 months ago
Estimating the cardinality of RDF graph patterns
Most RDF query languages allow for graph structure search through a conjunction of triples which is typically processed using join operations. A key factor in optimizing joins is ...
Angela Maduko, Kemafor Anyanwu, Amit P. Sheth, Pau...
110
Voted
CHI
2006
ACM
16 years 2 months ago
Making action visible in time-critical work
This paper presents descriptive accounts from an ethnographic study of time-critical work in the domain of emergency response and the operative work of fire crews. The verbal comm...
Jonas Landgren