The scope of cyberspace weapons is expanding from the physical network domain to the
cognitive information domain. Technologies such as network penetration, public opinion …

With the growing popularity of online social networks, an environment has been set up that
can spread rumors in a faster and wider manner than ever before, which can have …

The use of IR methodology in the evaluation of recommender systems has become common
practice in recent years. IR metrics have been found however to be strongly biased towards …

Individuals do not typically reason in isolation when confronted with collectivedecision
making, but rather take into consideration the preferences of likeminded individuals and …

Election control considers the problem of an adversary who attempts to tamper with a voting
process, in order to either ensure that their favored candidate wins (constructive control) or …

We study the effects of campaigning, where the society is partitioned into voter clusters and
a diffusion process propagates opinions in a network connecting the clusters. Our model can …

The malicious rumors have tremendously attracted a more substantial number of
researchers to join the fight against the propagation of these types of information in online …

Opinion diffusion is studied on social graphs where agents hold binary opinions and where
social pressure leads them to conform to the opinion manifested by the majority of their …

We introduce a voting model with multi-agent ranked delegations. This model generalises
liquid democracy in two aspects: first, an agent's delegation can use the votes of multiple …

Consider a graph G with n nodes and m edges, which represents a social network, and
assume that initially each node is blue or white. In each round, all nodes simultaneously …