Argumentation is inherently pervaded by uncertainty, which can arise as a result of the
context in which argumentation is used, the kinds of agents that are involved in a given …

Among the wide variety of malicious behavior commonly observed in modern social
platforms, one of the most notorious is the diffusion of fake news, given its potential to …

In real-world applications, knowledge bases consisting of all the available information for a
specific domain, along with the current state of affairs, will typically contain contradictory …

In this article, we provide a new kind of belief revision operator that we call Moderated
Revision. At first glance, it is a non-prioritized operator that combines a basic classical AGM …

A descriptor is a set of sentences that are truth-functional combinations of expressions of the
form B p B p, where BB is a metalinguistic belief predicate and pa sentence in the object …

This work considers the formalisation of the merging process of stratified belief bases, where
beliefs are stored in different layers or strata. Their strata are ranked, following a total order …

This article investigates the properties of multistate top revision, a dichotomous (AGM-style)
model of belief revision that is based on an underlying model of probability revision. A …

This paper deals with belief base revision, a form of belief change which consists in
restoring consistency with the intention of incorporating a new piece of information from the …

Malicious behavior in social media has many faces, which for instance appear in the form of
bots, sock puppets, creation and dissemination of fake news, Sybil attacks, and actors hiding …

We propose a revision operator on a stratified belief base, ie, a belief base that stores beliefs
in different strata corresponding to the value an agent assigns to these beliefs. Furthermore …