186 search results - page 1 / 38 » Fast Computation of Sparse Datacubes |
VLDB
1997
ACM
13 years 9 months ago
1997
ACM
DOLAP
1999
ACM
13 years 9 months ago
1999
ACM
In recent years, OLAP technologies have become one of the important applications in the database industry. In particular, the datacube operation proposed in [5] receives strong at...
ICIP
2008
IEEE
14 years 7 months ago
2008
IEEE
Multispectral scene information is useful for radiometric graphics, material identification and imaging systems simulation. The multispectral scene can be described as a datacube,...
CCGRID
2003
IEEE
13 years 10 months ago
2003
IEEE
This paper addresses the query performance issue for Relational OLAP (ROLAP) datacubes. We present a distributed multi-dimensional ROLAP indexing scheme which is practical to imple...
SDM
2011
SIAM
12 years 8 months ago
2011
SIAM
Sparse principal component analysis (PCA) imposes extra constraints or penalty terms to the standard PCA to achieve sparsity. In this paper, we first introduce an efficient algor...