197 search results - page 2 / 40 » Updating OLAP Dimensions |
SIGMOD
1997
ACM
13 years 9 months ago
1997
ACM
A range query applies an aggregation operation over all selected cells of an OLAP data cube where the selection is speci ed by providing ranges of values for numeric dimensions. W...
DOLAP
2003
ACM
13 years 10 months ago
2003
ACM
The data cube operator exemplifies two of the most important aspects of OLAP queries: aggregation and dimension hierarchies. In earlier work we presented Dwarf, a highly compress...
ICDE
2001
IEEE
14 years 6 months ago
2001
IEEE
FOIKS
2004
Springer
13 years 10 months ago
2004
Springer
Abstract. Dimension schemas are abstract models of the data hierarchies that populate OLAP warehouses. Although there is abundant work on schema equivalence in a variety of data mo...
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...