415 search results - page 18 / 83 » Efficient Processing of Relational Queries with Sum Constrai... |
SIGMOD
2001
ACM
14 years 8 months ago
2001
ACM
Users often need to optimize the selection of objects by appropriately weighting the importance of multiple object attributes. Such optimization problems appear often in operation...
EDBT
2010
ACM
13 years 11 months ago
2010
ACM
A key advantage of scientific workflow systems over traditional scripting approaches is their ability to automatically record data and process dependencies introduced during workf...
ICDE
2007
IEEE
14 years 9 months ago
2007
IEEE
Text documents often embed data that is structured in nature. By processing a text database with information extraction systems, we can define a variety of structured "relati...
SIGMOD
2003
ACM
14 years 8 months ago
2003
ACM
We propose a framework for integrating data from multiple relational sources into an XML document that both conforms to a given DTD and satisfies predefined XML constraints. The f...
BTW
2003
Springer
14 years 1 months ago
2003
Springer
Abstract: In order to achieve efficient execution plans for queries comprising userdefined data types and predicates, the database system has to be provided with appropriate index ...