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DAWAK
2005
Springer
13 years 10 months ago
Automatic Selection of Bitmap Join Indexes in Data Warehouses
The queries defined on data warehouses are complex and use several join operations that induce an expensive computational cost. This cost becomes even more prohibitive when querie...
Kamel Aouiche, Jérôme Darmont, Omar B...
SBBD
2001
119views Database» more  SBBD 2001»
13 years 6 months ago
The Dimension-Join: A New Index for Data Warehouses
There are several auxiliary pre-computed access structures that allow faster answers by reading less base data. Examples are materialized views, join indexes, B-tree and bitmap in...
Pedro Bizarro, Henrique Madeira
CORR
2008
Springer
114views Education» more  CORR 2008»
13 years 4 months ago
Dynamic index selection in data warehouses
Analytical queries defined on data warehouses are complex and use several join operations that are very costly, especially when run on very large data volumes. To improve response...
Stéphane Azefack, Kamel Aouiche, Jér...
TKDE
2002
148views more  TKDE 2002»
13 years 4 months ago
Parallel Star Join + DataIndexes: Efficient Query Processing in Data Warehouses and OLAP
On-Line Analytical Processing (OLAP) refers to the technologies that allow users to efficiently retrieve data from the data warehouse for decision-support purposes. Data warehouses...
Anindya Datta, Debra E. VanderMeer, Krithi Ramamri...
ADC
2003
Springer
162views Database» more  ADC 2003»
13 years 9 months ago
Automated Data Warehousing for Rule-based CRM Systems
This paper proposes a novel way of automatically developing data warehouse configuration in rule-based CRM systems. Rule-based CRM systems assume that marketing activities are re...
Han-joon Kim, Taehee Lee, Sang-goo Lee, Jonghun Ch...