CONF Sheikhi_GAZEIN_2013/IDIAP Context Aware Addressee Estimation for Human Robot Interaction Sheikhi, Samira Jayagopi, Dinesh Babu Khalidov, Vasil Odobez, Jean-Marc Proceedings of the 6th Workshop on Eye Gaze in Intelligent Human Machine Interaction: Gaze in Multimodal Interaction 2013