561 search results - page 9 / 113 » What Time Is It in the Data Warehouse |
IDEAS
2000
IEEE
14 years 2 months ago
2000
IEEE
This paper considers the issue of bulk loading large data sets for the UB-Tree, a multidimensional index structure. Especially in dataware housing (DW), data mining and OLAP it is...
DEXA
2009
Springer
14 years 4 months ago
2009
Springer
Dimension hierarchies represent a substantial part of the data warehouse model. Indeed they allow decision makers to examine data at different levels of detail with On-Line Analyt...
DAWAK
2005
Springer
14 years 3 months ago
2005
Springer
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...
DOLAP
2004
ACM
14 years 3 months ago
2004
ACM
Parallelism can be used for major performance improvement in large Data warehouses (DW) with performance and scalability challenges. A simple low-cost shared-nothing architecture ...
APWEB
2004
Springer
14 years 3 months ago
2004
Springer
Queries to data warehouses often involve hundreds of complex aggregations over large volumes of data, and so it is infeasible to compute these queries by scanning the data sources ...