803 search results - page 68 / 161 » Aggregation operators and decision modeling |
VLDB
2004
ACM
14 years 1 months ago
2004
ACM
We study the fundamental limitations of relational algebra (RA) and SQL in supporting sequence and stream queries, and present effective query language and data model enrichments ...
IRI
2008
IEEE
14 years 2 months ago
2008
IEEE
—Supply chain [2], [6] is an important component of business operations. Understanding its stochastic behaviors is the key to risk analysis and performance evaluation in supply c...
4OR
2006
13 years 7 months ago
2006
Sorting models consist in assigning alternatives evaluated on several criteria to ordered categories. To implement such models it is necessary to set the values of the preference p...
USITS
2003
13 years 9 months ago
2003
We propose a two-phase methodology for quantifying the performability (performance and availability) of cluster-based Internet services. In the first phase, evaluators use a fault...
AUIC
2000
IEEE
14 years 3 days ago
2000
IEEE
The potential of the Web, via both the Internet and intranets, to facilitate development of clinical information systems has been evident for some time. Most Web-based clinical wo...