766 search results - page 82 / 154 » Commuting aggregation operators |
FAST
2009
13 years 6 months ago
2009
In this paper we describe Cumulus, a system for efficiently implementing filesystem backups over the Internet. Cumulus is specifically designed under a thin cloud assumption--that...
SSDBM
1999
IEEE
14 years 1 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...
WSC
1997
13 years 10 months ago
1997
Modeling and simulation of very large systems introduces a number of issues that are not seen in the modeling of simpler systems. These arise because the resource requirements for...
IPM
2007
13 years 8 months ago
2007
This paper describes our novel retrieval model that is based on contexts of query terms in documents (i.e., document contexts). Our model is novel because it explicitly takes into...
ICDE
2004
IEEE
14 years 10 months ago
2004
IEEE
We examine the problem of evaluating selection queries over imprecisely represented objects. Such objects are used either because they are much smaller in size than the precise on...