Defense semantics of argumentation: encoding reasons for accepting arguments
Abstract
In this paper we show how the defense relation among abstract arguments can be used to encode the reasons for accepting arguments. After introducing a novel notion of defenses and defense graphs, we propose a defense semantics together with a new notion of defense equivalence of argument graphs, and compare defense equivalence with standard equivalence and strong equivalence, respectively. Then, based on defense semantics, we define two kinds of reasons for accepting arguments, i.e., direct reasons and root reasons, and a notion of root equivalence of argument graphs. Finally, we show how the notion of root equivalence can be used in argumentation summarization.
Cite
@article{arxiv.1705.00303,
title = {Defense semantics of argumentation: encoding reasons for accepting arguments},
author = {Beishui Liao and Leendert van der Torre},
journal= {arXiv preprint arXiv:1705.00303},
year = {2017}
}
Comments
14 pages, first submitted on April 30, 2017; 16 pages, revised in terms of the comments from MIREL2017 on August 03, 2017