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» Query Optimization in Database Grid
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GIS
2006
ACM
14 years 10 months ago
Optimization of multiple continuous queries over streaming satellite data
Remotely sensed data, in particular satellite imagery, play many important roles in environmental applications and models. In particular applications that study (rapid) changes in...
Quinn Hart, Michael Gertz
SIGMOD
2003
ACM
136views Database» more  SIGMOD 2003»
14 years 9 months ago
A Characterization of the Sensitivity of Query Optimization to Storage Access Cost Parameters
Most relational query optimizers make use of information about the costs of accessing tuples and data structures on various storage devices. This information can at times be off b...
Frederick Reiss, Tapas Kanungo
SIGMOD
2003
ACM
146views Database» more  SIGMOD 2003»
14 years 9 months ago
Estimating Compilation Time of a Query Optimizer
A query optimizer compares alternative plans in its search space to find the best plan for a given query. Depending on the search space and the enumeration algorithm, optimizers v...
Ihab F. Ilyas, Jun Rao, Guy M. Lohman, Dengfeng Ga...
PVLDB
2010
146views more  PVLDB 2010»
13 years 3 months ago
Generating Efficient Execution Plans for Vertically Partitioned XML Databases
Experience with relational systems has shown that distribution is an effective way of improving the scalability of query evaluation. In this paper, we show how distributed query e...
Patrick Kling, M. Tamer Özsu, Khuzaima Daudje...
SIGMOD
2000
ACM
121views Database» more  SIGMOD 2000»
14 years 1 months ago
MOCHA: A Self-Extensible Database Middleware System for Distributed Data Sources
We present MOCHA, a new self-extensible database middleware system designed to interconnect distributed data sources. MOCHA is designed to scale to large environments and is based...
Manuel Rodriguez-Martinez, Nick Roussopoulos