A Principle-based Robustness Analysis of Admissibility-based Argumentation Semantics
Tjitze Rienstra, Chiaki Sakama, Leendert van der Torre, and Beishui Liao
Argument & Computation, vol.11(3), pages 305-339, 2020.
The principle-based approach is a methodology to classify and analyse argumentation semantics.
In this paper we classify seven of the main alternatives for argumentation semantics using a set of new robustness principles.
These principles complement Baroni and Giacomin’s original classification and deal with the behaviour of a semantics
when the argumentation framework changes due to the addition or removal of an attack between two arguments.
We distinguish so-called persistence principles and monotonicity principles, where the former deal with the question of
whether a labelling or extension of an argumentation framework under a given semantics persists after a change,
and the latter with the question of whether new labellings or extensions are created after a change.
We furthermore show in which sense labelling-based and extension-based semantics lead to subtly different principles and results.
Our results can be used for choosing a semantics for a particular application,
or to guide the search for new argumentation semantics, but they have been used also in the design of algorithms.