383 search results - page 8 / 77 » OLAP Dimension Constraints |
116
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SSD
2005
Springer
15 years 5 months ago
2005
Springer
Abstract. A top-k OLAP query groups measures with respect to some abstraction level of interesting dimensions and selects the k groups with the highest aggregate value. An example ...
SSDBM
1999
IEEE
15 years 4 months ago
1999
IEEE
On-Line Analytical Processing (OLAP) technologies are being used widely, but the lack of effective means of handling data imprecision, which occurs when exact values are not known...
116
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ISI
2002
Springer
14 years 11 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...
115
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DOLAP
2006
ACM
15 years 5 months ago
2006
ACM
Decision support systems (DSS) may be enhanced qualitatively if they are able to also deal with spatial dimensions and measures. Regardless the evident importance of using data wa...
102
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SIGMOD
1997
ACM
15 years 4 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...