Biographical note

Barbara Carminati is an assistant professor in Computer Science at the University of Insubria, Italy. She has visited several foreign universities as a visiting researcher, including: National University of Singapore, University of Texas at Dallas, Aristotle University of Thessaloniki, and Tsinghua University, Beijng. Her main research interests are related to security and privacy for innovative applications, like semantic web, data outsourcing, web services, data streams, and online social networks. On these topics Barbara has published more than 60 publications in international journals and conference proceedings, and has been involved in several research projects. She is currently the principal investigator of a project funded by the European Office of Aerospace Research and Development (EOARD). Barbara is the Editor-in-Chief of the Computer Standards & Interfaces journal from Elsevier Press, and has been involved in the organization of several international conferences as a program committee member, as well as program and general chair.Elena Ferrari is a full professor of Computer Science at the University of Insubria, Italy, where she leads the STRICT SociaLab and is scientific director of the K&SM Research Center. Her research interests are related to various aspects of data management and analysis, including social networks and the social web, access control, privacy, trust, and cloud computing. She received the IEEE Computer Society's prestigious 2009 Technical Achievement Award for ""outstanding and innovative contributions to secure data management."" In 2011, she received a Google research award for her research on social network privacy. She is an IEEE Fellow and Distinguished Member of the ACM.Marco Viviani is currently a postdoctoral researcher at the University of Insubria, Italy, on topics connected to Trust Management in the Social Web. He acquired a Ph.D. in Informatics from the University of Milan, Italy in February 2008. In 2009, he obtained a one-year postoctoral research fellow at the Universite de Bourgogne/Le2i (Dijon France). In 2010, he obtained a two-year postoctoral research fellow at the Institut National des Sciences Appliquees/Liris (Lyon, France). Marco Viviani has been involved in several research projects. His main topics of interest include Trust Management, Trust and Reputation Systems, Social Network Analysis, User Modeling, Knowledge Extraction and Management, Distributed Systems, and Fuzzy Logic. On these topics he has written several international publications.