Making Use of Advances in Answer-Set Programming for Abstract Argumentation System

Wolfgang DvořákWolfgang Dvořák, Sarah Alice GagglSarah Alice Gaggl, Johannes Peter WallnerJohannes Peter Wallner, Stefan WoltranStefan Woltran

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Wolfgang Dvořák, Sarah Alice Gaggl, Johannes Peter Wallner, Stefan Woltran
Making Use of Advances in Answer-Set Programming for Abstract Argumentation System
Technical Report, arXiv.org, volume abs/1108.4942, 2011. Paper appears in the Proceedings of the 19th International Conference on Applications of Declarative Programming and Knowledge Management (INAP 2011)

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KurzfassungAbstract
Dung’s famous abstract argumentation frameworks represent the core formalism for many problems and applications in the field of argumentation which significantly evolved within the last decade. Recent work in the field has thus focused on implementations for these frameworks, whereby one of the main approaches is to use Answer-Set Programming (ASP). While some of the argumenta- tion semantics can be nicely expressed within the ASP language, others required rather cumbersome encoding techniques. Recent advances in ASP systems, in particular, the metasp optimization front- end for the ASP-package gringo/claspD provides direct commands to filter answer sets satisfying certain subset-minimality (or -maximality) constraints. This allows for much simpler encodings com- pared to the ones in standard ASP language. In this paper, we experimentally compare the original encodings (for the argumentation semantics based on preferred, semi-stable, and respectively, stage extensions) with new metasp encodings. Moreover, we provide novel encodings for the recently introduced resolution-based grounded semantics. Our experimental results indicate that the metasp ap- proach works well in those cases where the complexity of the encoded problem is adequately mirrored within the metasp approach.
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Forschungsgruppe:Research Group: Computational LogicComputational Logic, Logische Programmierung und ArgumentationLogic Programming and Argumentation

@techreport{DGWW2011,
  author      = {Wolfgang Dvo{\v{r}}{\'{a}}k and Sarah Alice Gaggl and Johannes
                 Peter Wallner and Stefan Woltran},
  title       = {Making Use of Advances in Answer-Set Programming for Abstract
                 Argumentation System},
  institution = {arXiv.org},
  year        = {2011}
}