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ECSQARU
2009
Springer
13 years 11 months ago
Realizing Default Logic over Description Logic Knowledge Bases
Abstract. We consider a realization of Reiter-style default logic on top of description logic knowledge bases (DL-KBs). To this end, we present elegant transformations from default...
Minh Dao-Tran, Thomas Eiter, Thomas Krennwallner
ENTCS
2006
183views more  ENTCS 2006»
13 years 4 months ago
Metamodel-Based Model Transformation with Aspect-Oriented Constraints
Model transformation means converting an input model available at the beginning of the transformation process to an output model. A widely used approach to model transformation us...
László Lengyel, Tihamer Levendovszky...
CP
1999
Springer
13 years 9 months ago
The Theory of Discrete Lagrange Multipliers for Nonlinear Discrete Optimization
In this paper we present a Lagrange-multiplier formulation of discrete constrained optimization problems, the associated discrete-space first-order necessary and sufficient condit...
Benjamin W. Wah, Zhe Wu
ICDT
1990
ACM
110views Database» more  ICDT 1990»
13 years 9 months ago
Beginnings of a Theory of General Database Completions
Ordinary logical implication is not enough for answering queries in a logic database, since especially negative information is only implicitly represented in the database state. M...
Stefan Brass
CSLP
2004
Springer
13 years 10 months ago
Property Grammars: A Fully Constraint-Based Theory
Abstract. This paper presents the basis of Property Grammars, a fully constraintbased theory. In this approach, all kinds of linguistic information is represented by means of const...
Philippe Blache