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» Query optimization techniques for partitioned tables
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145
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FCSC
2007
131views more  FCSC 2007»
15 years 2 months ago
SONNET: subscription using path queries over structured overlay networks
Application-level content-based routing using XML is a key technology for decentralized publish/subscribe systems. In this paper, a new approach is proposed to support the efficien...
Weining Qian, Linhao Xu, Aoying Zhou, Minqi Zhou
SIGMOD
2002
ACM
120views Database» more  SIGMOD 2002»
16 years 2 months ago
Exploiting statistics on query expressions for optimization
Statistics play an important role in influencing the plans produced by a query optimizer. Traditionally, optimizers use statistics built over base tables and assume independence b...
Nicolas Bruno, Surajit Chaudhuri
140
Voted
ICDE
2012
IEEE
196views Database» more  ICDE 2012»
13 years 5 months ago
Scalable Multi-query Optimization for SPARQL
Abstract—This paper revisits the classical problem of multiquery optimization in the context of RDF/SPARQL. We show that the techniques developed for relational and semi-structur...
Wangchao Le, Anastasios Kementsietsidis, Songyun D...
160
Voted
ICDE
2012
IEEE
224views Database» more  ICDE 2012»
13 years 5 months ago
Exploiting Common Subexpressions for Cloud Query Processing
—Many companies now routinely run massive data analysis jobs – expressed in some scripting language – on large clusters of low-end servers. Many analysis scripts are complex ...
Yasin N. Silva, Paul-Ake Larson, Jingren Zhou
129
Voted
PSB
2003
15 years 3 months ago
MAP: Searching Large Genome Databases
A number of biological applications require comparison of large genome strings. Current techniques suffer from both disk I/O and computational cost because of extensive memory req...
Tamer Kahveci, Ambuj K. Singh