Nowadays, many computer and communication systems generate graph data. Graph data
span many different domains, ranging from online social network data from networks like …

Credit networks model transitive trust (or credit) between users in a distributed environment
and have recently seen a rapid increase of popularity due to their flexible design and …

The Command and Control (C&C) channel of modern botnets is migrating from traditional
centralized solutions (such as the ones based on Internet Relay Chat and Hyper Text …

Abstract Online Social Networks are becoming the most important “places” where people
share information about their lives. With the increasing concern that users have about …

In this work we study information leakage through discussions in online social networks. In
particular, we focus on articles published by news pages, in which a person's name is …

Decentralized online social networks (DOSNs) have adopted quite coarse-grained policies
for sharing messages with friends of friends (ie, resharing). They either forbid it completely or …

In the wake of surveillance scandals in recent years, as well of the continuous deployment of
more sophisticated censorship mechanisms, concerns over anonymity and privacy on the …

Private Information Sharing in Online Communities Page 1 ARENBERG DOCTORAL
SCHOOL Faculty of Engineering Science Private Information Sharing in Online …

Anonymous communications is a long sought goal of dissidents, privacy advocates, and a
host of other user communities. While a large number of systems have been proposed …

A large extent of today's computer programs is distributed. For instance, services for
backups, file storage, and cooperative work are now typically managed by distributed …