Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
IVA'11 Proceedings of the 10th international conference on Intelligent virtual agents
Gaze tutor: A gaze-reactive intelligent tutoring system
International Journal of Human-Computer Studies
Requirements and platforms for social agents that alarm and support elderly living alone
ICSR'11 Proceedings of the Third international conference on Social Robotics
Modelling empathy in social robotic companions
UMAP'11 Proceedings of the 19th international conference on Advances in User Modeling
Designing relational agents as long term social companions for older adults
IVA'12 Proceedings of the 12th international conference on Intelligent Virtual Agents
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We discuss issues in designing virtual humans for applications that require long-term voluntary use and the problem of maintaining engagement with users over time. Concepts and theories related to engagement from a variety of disciplines are reviewed. We describe a platform for conducting studies into long-term interactions between humans and virtual agents and present the results of two longitudinal, randomized, controlled experiments in which the effect of manipulations of agent behavior on user engagement was assessed.