777 search results - page 25 / 156 » Optimization of Relational Preference Queries |
TEC
2010
13 years 2 months ago
2010
Abstract--Assuming that evolutionary multiobjective optimization (EMO) mainly deals with set problems, one can identify three core questions in this area of research: (i) how to fo...
PODS
2000
ACM
14 years 1 days ago
2000
ACM
The problem of query containment is fundamental to many aspects of database systems, including query optimization, determining independence of queries from updates, and rewriting ...
JUCS
2010
13 years 6 months ago
2010
Abstract: This paper addresses the problem of expressing preferences among nonfunctional properties of services in a Web service architecture. In such a context, semantic and non-f...
PKDD
2005
Springer
14 years 1 months ago
2005
Springer
Abstract. Social network analysis has attracted much attention in recent years. Community mining is one of the major directions in social network analysis. Most of the existing met...
SIGMOD
1993
ACM
13 years 11 months ago
1993
ACM
Abstract: We propose a framework for the specification of extensible database systems. A particular goal is to implement a software component for parsing and rule-based optimizatio...