PROCEEDINGS 2nd International Workshop on Social Influence Analysis (SocInf 2016) In conjunction with the 25th International Joint Conferences on Artificial Intelligence New York City, New York, USA, 9th July 2016 Marcelo G. Armentano Ariel Monteserin Jie Tang Virginia Yannibelli (Eds.) Copyright and Bibliographical Information Copyright © 2016 for the individual papers by the papers’ authors. Copying permitted for private and academic purposes. This volume is published and copyrighted by its editors. The copyright of for papers appearing in these proceedings belongs to the paper’s authors. This volume is published by Marcelo G. Armentano, Ariel Monteserin, Jie Tang, and Virginia Yannibelli ISSN: 1613-0073 Proceedings of the 2nd International Workshop on Social Influence Analysis (SocInf 2016), in conjunction with the Twenty-Fifth International Joint Conference on Artificial Intelligence July 9th – 15th, 2016 New York City, New York, USA http://ijcai-16.org Marcelo G. Armentano, Ariel Monteserin, Jie Tang, and Virginia Yannibelli (editors). Workshop Web Site Additional information about the workshop will be maintained at the workshop Web site: http://socinf2016.isistan.unicen.edu.ar/ Proceedings of the 2nd International Workshop on Social Influence Analysis (SocInf 2016) July 9th, 2016 - New York, USA Workshop chairs  Marcelo Armentano ISISTAN Research Institute (CONICET / UNICEN), Tandil, Argentina.  Ariel Monteserin ISISTAN Research Institute (CONICET / UNICEN), Tandil, Argentina.  Jie Tang Knowledge Engineering Lab (Group), Tsinghua University, China  Virginia Yannibelli ISISTAN Research Institute (CONICET / UNICEN), Tandil, Argentina. Program committee  Palakorn Achananuparp (Singapore Management University, Singapore)  Martin Atzmueller (University of Kassel, Kassel, Germany)  Federica Cena (Department of Computer Science, University of Torino, Italy)  Alejandro Corbellini (ISISTAN Research Institute, Argentina)  Yuan Fang (Institute for Infocomm Research, Singapore)  Xiaoming Fu (University of Goettingen, Germany)  Alexandros Karatzoglou (Telefonica Research, Spain)  Huan Liu (Arizona State University, USA)  Katarzyna Musiał (King's College London, UK)  Silvia Schiaffino (ISISTAN Research Institute, Argentina)  Rossano Schifanella (University of Turin, Italy)  Le Song (Georgia Institute of Technology, USA)  Christoph Trattner (Norwegian University of Science and Technology, Norway)  Julita Vassileva (University of Saskatchewan, Canada) Additional reviewers  Ifeoma Adaji (University of Saskatchewan, Canada)  Antonela Tommasel (ISISTAN Research Institute, Argentina)