Talks and Poster Presentations (with Proceedings-Entry):
T. Linsbichler, C. Spanring, S. Woltran:
"The Hidden Power of Abstract Argumentation Semantics";
Talk: The 2015 International Workshop on Theory and Applications of Formal Argument,
Buenos Aires, Argentinien;
- 07-26-2015; in: "Theory and Applications of Formal Argumentation",
E. Black, S. Modgil, N. Oren (ed.);
Lecture Notes in Computer Science,
Abstract argumentation plays an important role in many advanced AI formalisms. It is thus vital to understand the strengths and limits of the different semantics available. In this work, we contribute to this line of research and investigate two recently proposed properties: rejected arguments and implicit conflicts. Given an argumentation framework F, the former refers to arguments in F which do not occur in any extension of F; the latter refers to pairs of arguments which do not occur together in any extension of F despite not being linked in F's attack relation. We consider four prominent semantics, viz. stable, preferred, semi-stable and stage and show that their expressive power relies on both properties. Among our results, we refute a recent conjecture by Baumann et al. on implicit conflicts.
"Official" electronic version of the publication (accessed through its Digital Object Identifier - DOI)
Created from the Publication Database of the Vienna University of Technology.