Semantic Multimedia Second International Conference on Semantic and Digital Media Technologies, SAMT 2007, Genoa, Italy, December 5-7, 2007. Proceedings - Falcidieno, Bianca; Spagnuolo, Michela; Avrithis, Yannis; Kompatsiaris, Ioannis; Buitelaar, Paul (Springer Berlin Heidelberg, 2007)