Multimodal Analyses enabling Artificial Agents in Human-Machine Interaction Second International Workshop, MA3HMI 2014, Held in Conjunction with INTERSPEECH 2014, Singapore, Singapore, September 14, 2014, Revised Selected Papers - Böck, Ronald; Bonin, Francesca; Campbell, Nick; Poppe, Ronald (Springer International Publishing : Imprint: Springer, 2015)