Internet Science : 4th International Conference, INSCI 2017, Thessaloniki, Greece, November 22-24, 2017, Proceedings - Kompatsiaris, Ioannis.; Cave, Jonathan.; Satsiou, Anna.; Carle, Georg.; Passani, Antonella.; Kontopoulos, Efstratios.; Diplaris, Sotiris.; McMillan, Donald. (Springer International Publishing : Imprint: Springer, 2017)