no code implementations • 17 Apr 2024 • Tuomo Lehtonen, Anna Rapberger, Francesca Toni, Markus Ulbricht, Johannes P. Wallner
We make use of a semantics-preserving translation between ABA and bipolar argumentation frameworks (BAFs).
no code implementations • 28 Dec 2021 • Adrian Haret, Johannes P. Wallner
We look at preference change arising out of an interaction between two elements: the first is an initial preference ranking encoding a pre-existing attitude; the second element is new preference information signaling input from an authoritative source, which may come into conflict with the initial preference.
no code implementations • 7 Sep 2021 • Wolfgang Dvořák, Matthias König, Johannes P. Wallner, Stefan Woltran
In this solver description we present ASPARTIX-V, in its 2021 edition, which participates in the International Competition on Computational Models of Argumentation (ICCMA) 2021.
1 code implementation • 9 Aug 2021 • Tuomo Lehtonen, Johannes P. Wallner, Matti Järvisalo
In this work, we harness recent advances in incremental ASP solving for developing effective algorithms for reasoning tasks in the logic programming fragment of ABA that are presumably hard for the second level of the polynomial hierarchy, including skeptical reasoning under preferred semantics as well as preferential reasoning.
no code implementations • 20 Jun 2018 • Gerhard Brewka, Jörg Pührer, Hannes Strass, Johannes P. Wallner, Stefan Woltran
Abstract Dialectical Frameworks (ADFs) generalize Dung's argumentation frameworks allowing various relationships among arguments to be expressed in a systematic way.
no code implementations • 23 Jul 2015 • Sarah A. Gaggl, Norbert Manthey, Alessandro Ronca, Johannes P. Wallner, Stefan Woltran
The design of efficient solutions for abstract argumentation problems is a crucial step towards advanced argumentation systems.