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ER
1995
Springer
15 years 1 months ago
1995
Springer
We describe a (meta) formalism for defining a variety of (object oriented) data models in a unified framework based on a variation of first-order logic. As specific example we use...
LOPSTR
2009
Springer
15 years 4 months ago
2009
Springer
We propose a new grouping operator for logic programs based on the group_by operator of SQL. The novelty of our proposal lies in the use of modes, which allows us to relax some rat...
AI
2004
Springer
14 years 9 months ago
2004
Springer
Order-sorted logic has been formalized as first-order logic with sorted terms where sorts are ordered to build a hierarchy (called a sort-hierarchy). These sorted logics lead to u...
FASE
2008
Springer
14 years 11 months ago
2008
Springer
For a number of programming languages, among them Eiffel, C, Java and Ruby, Hoare-style logics and dynamic logics have been developed. In these logics, pre- and postconditions are ...
CP
2003
Springer
15 years 3 months ago
2003
Springer
Combining mutually redundant models with channelling constraints increases constraint propagation. However, the extra computation efforts of the additional variables and constraint...