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On the Semantics of Abstract Argumentation Frameworks: A Logic Programming Approach

Published online by Cambridge University Press:  21 September 2020

Gianvincenzo Alfano
Affiliation:
DIMES Department, University of Calabria, Rende, Italy (e-mail: g.alfano@dimes.unical.it, greco@dimes.unical.it, fparisi@dimes.unical.it, i.trubitsyna@dimes.unical.it)
Sergio Greco
Affiliation:
DIMES Department, University of Calabria, Rende, Italy (e-mail: g.alfano@dimes.unical.it, greco@dimes.unical.it, fparisi@dimes.unical.it, i.trubitsyna@dimes.unical.it)
Francesco Parisi
Affiliation:
DIMES Department, University of Calabria, Rende, Italy (e-mail: g.alfano@dimes.unical.it, greco@dimes.unical.it, fparisi@dimes.unical.it, i.trubitsyna@dimes.unical.it)
Irina Trubitsyna
Affiliation:
DIMES Department, University of Calabria, Rende, Italy (e-mail: g.alfano@dimes.unical.it, greco@dimes.unical.it, fparisi@dimes.unical.it, i.trubitsyna@dimes.unical.it)
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Abstract

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Recently there has been an increasing interest in frameworks extending Dung’s abstract Argumentation Framework (AF). Popular extensions include bipolar AFs and AFs with recursive attacks and necessary supports. Although the relationships between AF semantics and Partial Stable Models (PSMs) of logic programs has been deeply investigated, this is not the case for more general frameworks extending AF.

In this paper we explore the relationships between AF-based frameworks and PSMs. We show that every AF-based framework Δ can be translated into a logic program PΔ so that the extensions prescribed by different semantics of Δ coincide with subsets of the PSMs of PΔ. We provide a logic programming approach that characterizes, in an elegant and uniform way, the semantics of several AF-based frameworks. This result allows also to define the semantics for new AF-based frameworks, such as AFs with recursive attacks and recursive deductive supports.

Information

Type
Original Article
Copyright
© The Author(s), 2020. Published by Cambridge University Press