19 search results - page 2 / 4 » Compressed Data Cubes for OLAP Aggregate Query Approximation... |
ICDE
1999
IEEE
14 years 7 months ago
1999
IEEE
Range sum queries on data cubes are a powerful tool for analysis. A range sum query applies an aggregation operation (e.g., SUM) over all selected cells in a data cube, where the ...
DOLAP
1999
ACM
13 years 10 months ago
1999
ACM
Recently numerous proposals for modelling and querying Multidimensional Databases (MDDB) are proposed. Among the still open problems there is a rigorous classification of the diff...
ISI
2002
Springer
13 years 5 months ago
2002
Springer
Dealing with large volumes of data, OLAP data cubes aggregated values are often spoiled by errors due to missing values in detailed data. This paper suggests to adjust aggregate an...
SIGMOD
1997
ACM
13 years 9 months ago
1997
ACM
Computing multiple related group-bys and aggregates is one of the core operations of On-Line Analytical Processing (OLAP) applications. Recently, Gray et al. [GBLP95] proposed the...
BTW
2007
Springer
13 years 11 months ago
2007
Springer
: Analysts interact with OLAP data in a predominantly “drill-down” fashion, i.e. gradually descending from a coarsely grained overview towards the desired level of detail. Anal...