Sciweavers

1295 search results - page 19 / 259
» Technology Challenges in a Data Warehouse
Sort
View
DOLAP
2000
ACM
14 years 2 months ago
Incremental Update to Aggregated Information for Data Warehouses over Internet
We consider the view maintenance problem in a web-based environment, in which clients query information from databases, stored in the form of materialized data warehouses, without...
Miranda Chan, Hong Va Leong, Antonio Si
DAWAK
2005
Springer
14 years 3 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...
DOLAP
2004
ACM
14 years 3 months ago
Handling big dimensions in distributed data warehouses using the DWS technique
The DWS (Data Warehouse Striping) technique allows the distribution of large data warehouses through a cluster of computers. The data partitioning approach partition the facts tab...
Marco Costa, Henrique Madeira
KES
2009
Springer
14 years 2 months ago
An Ontology-Based Autonomic System for Improving Data Warehouse Performances
: With the increase in the amount and complexity of information, data warehouse performance has become a constant issue, especially for decision support systems. As decisional expe...
Vlad Nicolicin-Georgescu, Vincent Benatier, R&eacu...
ADBIS
2010
Springer
333views Database» more  ADBIS 2010»
13 years 11 months ago
Horizontal Partitioning by Predicate Abstraction and Its Application to Data Warehouse Design
al Partitioning by Predicate Abstraction and its Application to Data Warehouse Design Aleksandar Dimovski1 , Goran Velinov2 , and Dragan Sahpaski2 1 Faculty of Information-Communic...
Aleksandar Dimovski, Goran Velinov, Dragan Sahpask...