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ICLP
2010
Springer
14 years 15 days ago
Constraint Answer Set Programming Systems
Abstract. We present an integration of answer set programming and constraint processing as an interesting approach to constraint logic programming. Although our research is in a ve...
Christian Drescher
CORR
2008
Springer
110views Education» more  CORR 2008»
13 years 8 months ago
Justifications for Logic Programs under Answer Set Semantics
The paper introduces the notion of off-line justification for Answer Set Programming (ASP). Justifications provide a graph-based explanation of the truth value of an atom w.r.t. a ...
Enrico Pontelli, Tran Cao Son, Omar El-Khatib
DLOG
2008
13 years 11 months ago
Taming the Infinite Chase: Query Answering under Expressive Relational Constraints
Answering queries posed over knowledge bases is a central problem in knowledge representation and database theory. In databases, query containment is one of the important query op...
Andrea Calì, Georg Gottlob, Michael Kifer
MOBIDE
2005
ACM
14 years 2 months ago
Context-aware optimization of continuous range queries maintenance for trajectories
This work addresses the problem of efficient maintenance of the (correct) answers to the continuous spatio-temporal range queries in Moving Objects Databases (MOD), which represen...
Goce Trajcevski, Hui Ding, Peter Scheuermann
ECAI
2006
Springer
14 years 8 days ago
Approximating Extended Answer Sets
Abstract. We present an approximation theory for the extended answer set semantics, using the concept of an approximation constraint. Intuitively, an approximation constraint, whil...
Davy Van Nieuwenborgh, Stijn Heymans, Dirk Vermeir