710 search results - page 105 / 142 » Relational Expressive Power of Constraint Query Languages |
BTW
1999
Springer
14 years 6 hour ago
1999
Springer
Conceptual Information Systems provide a multi-dimensional conceptually structured view on data stored in relational databases. On restricting the expressiveness of the retrieval l...
PVLDB
2008
13 years 7 months ago
2008
The old problem of managing the history of database information is now made more urgent and complex by fast spreading web information systems, such as Wikipedia. Our PRIMA system ...
CI
2000
13 years 7 months ago
2000
Kowalski and Sergot's Event Calculus (EC) is a simple temporal formalism that, given a set of event occurrences, derives the maximal validity intervals (MVIs) over which prop...
ACMICEC
2005
ACM
14 years 1 months ago
2005
ACM
In order to capture the full fledge semantic of complicated product data model, the expressive language ALCNHR+ K(D) is introduced. It cannot only be able to represent knowledge a...
ERCIMDL
1999
Springer
13 years 12 months ago
1999
Springer
Abstract. This text motivates and de nes a generic model for interactive online or o ine product catalogs. Based on a detailed requirements analysis, the data model is de ned usi...