486 search results - page 4 / 98 » Expressing OLAP Preferences |
VLDB
2002
ACM
13 years 7 months ago
2002
ACM
Data warehouses offer a compromise between freshness of data and query evaluation times. However, a fixed preference ratio between these two variables is too undifferentiated. Wit...
SSDBM
1999
IEEE
13 years 11 months ago
1999
IEEE
Large scale data analysis and mining activities, such as identifying interesting trends, making unusual patterns to stand out and verifying hypotheses, require sophisticated infor...
CASCON
2001
13 years 8 months ago
2001
On Line Analytical Processing (OLAP) aims at gaining useful information quickly from large amounts of data residing in a data warehouse. To improve the quickness of response to qu...
JDWM
2008
13 years 7 months ago
2008
This article deals with multidimensional analyses. Analyzed data are designed according to a conceptual model as a constellation of facts and dimensions, which are composed of mul...
ISI
2002
Springer
13 years 7 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...