Web-based communities have become important places for people to seek and share expertise. We find that networks in these communities typically differ in their topology from other...
Motivated by a problem of targeted advertising in social networks, we introduce and study a new model of online learning on labeled graphs where the graph is initially unknown and...
The Daily Activities Diarist is an awareness system that supports social connectedness between seniors living alone and their social intimates. The Daily Activities Diarist extract...
In this paper we propose a new class of attacks that exploit advertising systems offering microtargeting capabilities in order to breach user privacy. We study the advertising syst...
Abstract—Online social networks such as Facebook, MySpace, and Orkut store large amounts of sensitive user data. While a user can legitimately assume that a social network provid...
Manuel Egele, Andreas Moser, Christopher Kruegel, ...