Talks and Poster Presentations (with Proceedings-Entry):

J. Delgrande, T. Schaub, H. Tompits, S. Woltran:
"Merging Logic Programs under Answer Set Semantics";
Talk: International Conference on Logic Programming (ICLP), Pasadena, Californien; 07-14-2009 - 07-17-2009; in: "Logic Programming", P. Hill, D. Warren (ed.); Springer, LNCS 5649 (2009), ISBN: 3-642-02845-4; 160 - 174.

English abstract:
This paper considers a semantic approach for merging logic programs under answer set semantics. Given logic programs P 1, ..., P n , the goal is to provide characterisations of the merging of these programs. Our formal techniques are based on notions of relative distance between the underlying SE models of the logic programs. Two approaches are examined. The first informally selects those models of the programs that vary the least from the models of the other programs. The second approach informally selects those models of a program P 0 that are closest to the models of programs P 1, ..., P n . P 0 can be thought of as analogous to a set of database integrity constraints. We examine formal properties of these operators and give encodings for computing the mergings of a multiset of logic programs within the same logic programming framework. As a by-product, we provide a complexity analysis revealing that our operators do not increase the complexity of the base formalism.

answer set programming - belief merging - strong equivalence

"Official" electronic version of the publication (accessed through its Digital Object Identifier - DOI)

Related Projects:
Project Head Reinhard Pichler:
Theoretisch Effiziente Lösbarkeit vs. Praktische Berechnung

Created from the Publication Database of the Vienna University of Technology.