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» Optimizing Write Performance for Read Optimized Databases
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SIGMOD
2008
ACM
145views Database» more  SIGMOD 2008»
14 years 7 months ago
Optimizing complex queries with multiple relation instances
Today's query processing engines do not take advantage of the multiple occurrences of a relation in a query to improve performance. Instead, each instance is treated as a dis...
Yu Cao, Gopal C. Das, Chee Yong Chan, Kian-Lee Tan
CIKM
2005
Springer
14 years 1 months ago
Selectivity-based partitioning: a divide-and-union paradigm for effective query optimization
Modern query optimizers select an efficient join ordering for a physical execution plan based essentially on the average join selectivity factors among the referenced tables. In ...
Neoklis Polyzotis
SSDBM
2007
IEEE
121views Database» more  SSDBM 2007»
14 years 2 months ago
Cost-based Optimization of Complex Scientific Queries
High energy physics scientists analyze large amounts of data looking for interesting events when particles collide. These analyses are easily expressed using complex queries that ...
Ruslan Fomkin, Tore Risch
ICDE
2008
IEEE
157views Database» more  ICDE 2008»
14 years 9 months ago
OptRR: Optimizing Randomized Response Schemes for Privacy-Preserving Data Mining
The randomized response (RR) technique is a promising technique to disguise private categorical data in Privacy-Preserving Data Mining (PPDM). Although a number of RR-based methods...
Zhengli Huang, Wenliang Du
SIGMOD
2001
ACM
147views Database» more  SIGMOD 2001»
14 years 7 months ago
Optimizing Queries Using Materialized Views: A practical, scalable solution
Materialized views can provide massive improvements in query processing time, especially for aggregation queries over large tables. To realize this potential, the query optimizer ...
Jonathan Goldstein, Per-Åke Larson