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 (Information Systems and Applications, incl. Internet/Web, and HCI, 2007)