Talks and Poster Presentations (with Proceedings-Entry):

W. Dvorak, S. Woltran:
"Complexity of Abstract Argumentation under a Claim-Centric View";
Talk: AAAI 2019 - 33rd Conference on Artificial Intelligence, Honolulu, Hawaii; 2019-01-27 - 2019-02-01; in: "The Thirty-Third {AAAI} Conference on Artificial Intelligence, {AAAI} 2019, The Thirty-First Innovative Applications of Artificial Intelligence Conference, {IAAI} 2019, The Ninth {AAAI} Symposium on Educational Advances in Artificial Intelligence, {EAAI} 2019", AAAI Press, 33 (2019), ISBN: 978-1-57735-809-1; 2801 - 2808.

English abstract:
Abstract argumentation frameworks have been introduced by Dung as part of an argumentation process, where arguments and conflicts are derived from a given knowledge base. It is solely this relation between arguments that is then used in order to identify acceptable sets of arguments. A final step concerns the acceptance status of particular statements by reviewing the actual contents of the acceptable arguments. Complexity analysis of abstract argumentation so far has neglected this final step and is concerned with argument names instead of their contents, i.e. their claims. As we outline in this paper, this is not only a slight deviation but can lead to different complexity results. We, therefore, give a comprehensive complexity analysis of abstract argumentation under a claim-centric view and analyse the four main decision problems under seven popular semantics. In addition, we also address the complexity of common sub-classes and introduce novel parameterisations - which exploit the nature of claims explicitly - along with fixed-parameter tractability results.

"Official" electronic version of the publication (accessed through its Digital Object Identifier - DOI)

Related Projects:
Project Head Johannes Peter Wallner:

Project Head Stefan Woltran:
Neue Werkzeuge für graphenbasierte formale Argumentation

Project Head Stefan Woltran:

Created from the Publication Database of the Vienna University of Technology.