BOOK Popescu-Belis_SPRINGER-2_2008/IDIAP Machine Learning for Multimodal Interaction V Popescu-Belis, Andrei Stiefelhagen, Rainer Machine Learning for Multimodal Interaction (4th International Workshop, MLMI 2008, Utrecht, The Netherlands, September 2008, Proceedings) LNCS 5237 2008 Springer-Verlag Berlin/Heidelberg 978-3-540-85852-2 10.1007/978-3-540-85853-9 doi