1532 search results - page 16 / 307 » An analysis of additivity in OLAP systems |
POPL
2012
ACM
12 years 3 months ago
2012
ACM
We propose a general formal model of isolated hierarchical parallel computations, and identify several fragments to match the concurrency constructs present in real-world programm...
DIWEB
2001
13 years 9 months ago
2001
The demand for data integration is rapidly becoming larger as more and more information sources appear in modern enterprises. In many situations a logical (rather than physical) i...
JDWM
2006
13 years 7 months ago
2006
Navigating through multidimensional data cubes is a nontrivial task. Although On-Line Analytical Processing (OLAP) provides the capability to view multidimensional data through ro...
ISCAS
2007
IEEE
14 years 1 months ago
2007
IEEE
— A general noncoherent chaos-shift-keying (CSK) communication system with adjustable weights is proposed in this paper. The performance of the system under additive white Gaussi...
VLDB
2008
ACM
14 years 7 months ago
2008
ACM
Histograms are used to summarize the contents of relations into a number of buckets for the estimation of query result sizes. Several techniques (e.g., MaxDiff and V-Optimal) have ...