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DIAGRAMS
2004
Springer
15 years 3 months ago
2004
Springer
Query graphs with cuts are inspired by Sowa’s conceptual graphs, which are in turn based on Peirce’s existential graphs. In my thesis ‘The Logic System of Concept Graphs with...
ICDE
1993
IEEE
15 years 2 months ago
1993
IEEE
Emerging database application domains demand not only new functionality but also high performance. To satisfy these two requirements, the Volcano project provides efficient, exten...
ER
1994
Springer
15 years 2 months ago
1994
Springer
A logical database schema, e.g. a relational one, is an implementation of a speci cation, e.g. an entity-relationship diagram. Upcoming new data models and the necessity of seamle...
TCS
2002
14 years 9 months ago
2002
In this work, we investigate various specification languages and their relation to Casl, the recently developed Common Algebraic Specification Language. In particular, we consider...
TOOLS
1999
IEEE
15 years 2 months ago
1999
IEEE
Class algebra provides a natural framework for sharing of ISA hierarchies between users that may be unaware of each other's definitions. This permits data from relational dat...