Search Results for author: Johannes P. Wallner

Found 6 papers, 1 papers with code

Instantiations and Computational Aspects of Non-Flat Assumption-based Argumentation

no code implementations17 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).

An AGM Approach to Revising Preferences

no code implementations28 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.

Aspartix-V21

no code implementations7 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.

Harnessing Incremental Answer Set Solving for Reasoning in Assumption-Based Argumentation

1 code implementation9 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.

Weighted Abstract Dialectical Frameworks: Extended and Revised Report

no code implementations20 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.

Improved Answer-Set Programming Encodings for Abstract Argumentation

no code implementations23 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.

Abstract Argumentation

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