1. Qatar Computing Research Institute, Hamad Bin Khalifa University, P.O. Box 5825 Doha, Qatar.
2. Laboratory for the Modeling of Biological and Socio-Technical Systems, Northeastern University, Boston, MA 02115, USA.
3. Aix-Marseille Université, Université de Toulon, CNRS, CPT, UMR 7332, 13288 Marseille, France.
4. Annenberg School for Communication, University of Pennsylvania, Philadelphia, PA 19104, USA.
5. Departament d’Enginyeria Informàtica i Matemàtiques, Universitat Rovira i Virgili, 43007 Tarragona, Spain.
6. Department of Theoretical Physics, Faculty of Sciences, University of Zaragoza, 50009 Zaragoza, Spain.
7. Institute for Biocomputation and Physics of Complex Systems (BIFI), University of Zaragoza, 50018 Zaragoza, Spain.
8. Institute for Scientific Interchange, 10126 Torino, Italy.
9. Institute for Quantitative Social Sciences at Harvard University, Cambridge, MA 02138, USA.