Digital Economy. Emerging Technologies and Business Innovation : Second International Conference, ICDEc 2017, Sidi Bou Said, Tunisia, May 4-6, 2017, Proceedings - Jallouli, Rim.; Zaïane, Osmar R.; Bach Tobji, Mohamed Anis.; Srarfi Tabbane, Rym.; Nijholt, Anton. (Lecture Notes in Business Information Processing,, 2017)