6 search results - page 1 / 2 » On the Interaction Between ISA and Cardinality Constraints |
ICDE
1994
IEEE
13 years 8 months ago
1994
IEEE
CP
2004
Springer
13 years 10 months ago
2004
Springer
Cardinality matrix problems are the underlying structure of several real world problems such as rostering, sports scheduling , and timetabling. These are hard computational problem...
ER
2010
Springer
13 years 3 months ago
2010
Springer
Abstract. We investigate the computational complexity of reasoning over temporal extensions of conceptual data models. The temporal conceptual models we analyse include the standar...
ER
2007
Springer
13 years 10 months ago
2007
Springer
Abstract. We investigate the computational complexity of reasoning over various fragments of the Extended Entity-Relationship (EER) language, which includes a number of constructs:...
EDBT
1992
ACM
13 years 8 months ago
1992
ACM
A general technique for merging database schemas is developed that has a number of advantages over existing techniques, the most important of which is that schemas are placed in a...