PT Unknown AU Ruth Aylett Ginevra Castellano Bogdan Raducanu Ana Paiva Marc Hanheide TI Long-term socially perceptive and interactive robot companions: challenges and future perspectives BT 13th International Conference on Multimodal Interaction PY 2011 BP 323 EP 326 DI 10.1145/2070481.2070543 DE human-robot interaction; multimodal interaction; social robotics AB This paper gives a brief overview of the challenges for multi-model perception and generation applied to robot companions located in human social environments. It reviews the current position in both perception and generation and the immediate technical challenges and goes on to consider the extra issues raised by embodiment and social context. Finally, it briefly discusses the impact of systems that must function continually over months rather than just for a few hours. ER