Admissibility in Probabilistic Argumentation

Probabilistic Strategies in Dialogical Argumentation

In dialogical argumentation, a participant is often unsure what moves the other participant(s) might make. If the dialogue is proceeding according to some accepted protocol, then a participant might be able to determine what are the possible moves that the other might make, but the participant might be unsure as to which move will be chosen by the other agent. In this paper, propositional execu...

Probabilistic Argumentation Frameworks

In this paper, we extend Dung’s seminal argument framework to form a probabilistic argument framework by associating probabilities with arguments and defeats. We then compute the likelihood of some set of arguments appearing within an arbitrary argument framework induced from this probabilistic framework. We show that the complexity of computing this likelihood precisely is exponential in the n...

Probabilistic Argumentation Systems ∗

Belief in Attacks in Epistemic Probabilistic Argumentation

The epistemic approach to probabilistic argumentation assigns belief to arguments. This is valuable in dialogical argumentation where one agent can model the beliefs another agent has in the arguments and this can be harnessed to make strategic choices of arguments to present. In this paper, we extend this epistemic approach by also representing the belief in attacks. We investigate properties ...

Probabilistic Argumentation. An Equational Approach

There is a generic way to add any new feature to a system. It involves 1) identifying the basic units which build up the system and 2) introducing the new feature to each of these basic units. In the case where the system is argumentation and the feature is probabilistic we have the following. The basic units are: a. the nature of the arguments involved; b. the membership relation in the set S ...