Belief change (belief revision) is a research area in formal philosophy that makes use of
logic to produce models of how human and artificial agents change their beliefs in response …

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 the setting of Defeasible Logic, we deal with the problem of revising and contracting a non-
monotonic theory while minimizing the number of rules to be removed from the theory itself …

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 …

Belief revision performs belief change on an agent's beliefs when new evidence (either of
the form of a propositional formula or of the form of a total pre-order on a set of …

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 …

In this paper, we investigated the evolution of prioritized EL ontologies in the presence of
new information that can be certain or uncertain. We propose an extension of EL description …

This paper aims at comparing and relating belief revision and argumentation as approaches
to model reasoning processes. Referring to some prominent literature references in both …

Merging operators represent a significant tool to extract a consistent and informative view
from a set of agents. The consideration of practical scenarios where some agents can be …