81 search results - page 4 / 17 » Optimal Multidimensional Query Processing Using Tree Stripin... |
ICDE
2011
IEEE
12 years 9 months ago
2011
IEEE
— Uncertain data is quite common nowadays in a variety of modern database applications. At the same time, the join operation is one of the most important but expensive operations...
ADBIS
2007
Springer
13 years 9 months ago
2007
Springer
Query mapping to aggregation lattices is used in order to exploit sub-cube dependencies in multidimensional databases. It is employed in mobile OLAP dissemination systems, in order...
ICDE
2008
IEEE
15 years 5 months ago
2008
IEEE
Recently, there has been much interest in processing skyline queries for various applications that include decision making, personalized services, and search pruning. Skyline queri...
FUIN
2006
13 years 5 months ago
2006
In this paper we deal with the problem of finding an optimal query execution plan in database systems. We improve the analysis of a polynomial-time approximation algorithm due to M...
SSDBM
2003
IEEE
13 years 10 months ago
2003
IEEE
In many application contexts, like statistical databases, scientific databases, query optimizers, OLAP, and so on, data are often summarized into synopses of aggregate values. Su...