ARTICLE Madan_IEEEPERVASIVECOMPUTING_2011/IDIAP Sensing the `Health State` of our Society Madan, Anmol Cebrian, Manuel Moturu, Sai Farrahi, Katayoun Pentland, Alex EXTERNAL http://publications.idiap.ch/attachments/papers/2011/Madan_IEEEPERVASIVECOMPUTING_2011.pdf PUBLIC IEEE Pervasive Computing, Special Issue on Large-Scale Opportunistic Sensing 2011