252 search results - page 13 / 51 » Efficient OLAP Query Processing in Distributed Data Warehous... |
VLDB
2001
ACM
14 years 1 days ago
2001
ACM
In this paper we propose a new framework for dynamic distributed query processing based on so-called HyperQueries which are essentially query evaluation sub-plans “sitting behin...
SSDBM
1999
IEEE
13 years 12 months ago
1999
IEEE
Multidimensional Analysis in On-Line Analytical Processing (OLAP), and Scientific and statistical databases (SSDB) use operations requiring summary information on multi-dimensiona...
DEXA
2004
Springer
13 years 11 months ago
2004
Springer
The Iceberg SemiJoin (ISJ) of two datasets R and S returns the tuples in R which join with at least k tuples of S. The ISJ operator is essential in many practical applications incl...
SIGMOD
2002
ACM
14 years 7 months ago
2002
ACM
The widespread distribution and availability of smallscale sensors, actuators, and embedded processors is transforming the physical world into a computing platform. One such examp...
SIGMOD
1997
ACM
13 years 11 months ago
1997
ACM
: The read-mostly environment of data warehousing makes it possible to use more complex indexes to speed up queries than in situations where concurrent updatesare present. The curr...