1. Amos, B., Ludwiczuk, B., Harkes, J., Pillai, P., Elgazzar, K., Satyanarayanan, M.: Openface: Face recognition with deep neural networks. GITHUB (2016). http://github.com/cmusatyalab/openface
2. Coradeschi, S., et al.: Giraffplus: A system for monitoring activities and physiological parameters and promoting social interaction for elderly. Hum. Comput. Syst. Interact. Background Appl. 3 Adv. Intell. Syst. Comput. 300, 261–271 (2014)
3. Dondrup, C., Bellotto, N., Jovan, F., Hanheide, M.: Real-time multisensor people tracking for human-robot spatial interaction. In: Workshop on Machine Learning for Social Robotics at International Conference on Robotics and Automation - ICRA (2015)
4. Ekman, P., Friesen, W.: Facial action coding system. Consulting Phychologists Press, Palo Alto (1978)
5. Fischinger, D., Einramhof, P., et al.: Hobbit - the mutual care robot. In: ASROB-2013 in Conjunction with IEEE/RSJ International Conference on Intelligent Robots and Systems (IROS). Japan (2013)