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» Location-aware Query Processing and Optimization
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DOCENG
2004
ACM
14 years 3 months ago
Logic-based XPath optimization
XPath [16] was introduced by the W3C as a standard language for specifying node selection, matching conditions, and for computing values from an XML document. XPath is now used in...
Pierre Genevès, Jean-Yves Vion-Dury
SIGMOD
2005
ACM
139views Database» more  SIGMOD 2005»
14 years 9 months ago
Distributed operation in the Borealis stream processing engine
Borealis is a distributed stream processing engine that is being developed at Brandeis University, Brown University, and MIT. Borealis inherits core stream processing functionalit...
Yanif Ahmad, Bradley Berg, Ugur Çetintemel,...
PVLDB
2008
122views more  PVLDB 2008»
13 years 9 months ago
Identifying robust plans through plan diagram reduction
Estimates of predicate selectivities by database query optimizers often differ significantly from those actually encountered during query execution, leading to poor plan choices a...
Harish D., Pooja N. Darera, Jayant R. Haritsa
ICDE
2012
IEEE
304views Database» more  ICDE 2012»
12 years 4 days ago
Learning-based Query Performance Modeling and Prediction
— Accurate query performance prediction (QPP) is central to effective resource management, query optimization and query scheduling. Analytical cost models, used in current genera...
Mert Akdere, Ugur Çetintemel, Matteo Rionda...
SAC
2008
ACM
13 years 9 months ago
Selectivity estimation in spatial networks
Modern applications requiring spatial network processing pose many interesting query optimization challenges. In many cases, query processing depends on the corresponding graph si...
Eleftherios Tiakas, Apostolos N. Papadopoulos, Ale...