Constellation Approach
The constellation approach models uncertainty about which arguments and attacks are present. The probabilities of a PAF induce a probability distribution over all its subframeworks, and an argument is evaluated by how likely it is to be accepted in them.
Reference
Hunter, A. (2012). Some Foundations for Probabilistic Abstract Argumentation. In: Computational Models of Argument (COMMA 2012), FAIA 245, pp. 117–128. IOS Press.