Trust Based Security Mechanisms for Social Networks

Inspired by the similarities between human trust and physical measurements, we have proposed a trust framework for social networks, including defining new trust metrics and their combinations, which captures both human trust level and its uncertainty, while being intuitive and user friendly. Based on our trust framework, we propose several security mechanisms, including filtering information on social networks and increasing the efficiency of advertisement and influence on social networks. Experiments on synthesized and real social networks validate the potential of our trust framework to develop trust based mechanisms for social networks.