197 search results - page 23 / 40 » Updating OLAP Dimensions |
SIGMOD
1997
ACM
14 years 3 months ago
1997
ACM
Data warehouses contain large amounts of information, often collected from a variety of independent sources. Decision-support functions in a warehouse, such as on-line analytical ...
ICML
2007
IEEE
14 years 11 months ago
2007
IEEE
We generalize the Winnow algorithm for learning disjunctions to learning subspaces of low rank. Subspaces are represented by symmetric projection matrices. The online algorithm ma...
ICDM
2009
IEEE
14 years 5 months ago
2009
IEEE
Abstract—Linear discriminant analysis (LDA) is a wellknown dimension reduction approach, which projects highdimensional data into a low-dimensional space with the best separation...
ACRI
2008
Springer
14 years 5 months ago
2008
Springer
This article studies the convergence properties of some 2D cellular automata, when a single cell is updated at random at each time step. We tackle this question for a particular s...
ICPADS
2005
IEEE
14 years 4 months ago
2005
IEEE
Data warehouses store large volumes of data according to a multidimensional model with dimensions representing different axes of analysis. OLAP systems (OnLine Analytical Processi...