Evaluating the Robot Personality and Verbal Behavior of Domestic Robots Using Video-Based Studies

Michael Walters, Manja Lohse, Marc Hanheide, Britta Wrede, Dag Syrdal, Kheng Koay, Anders Green, Helge Huttenrauch, Kerstin Dautenhahn, Gerhard Sagerer, Kerstin Severinson-Eklundh, 'Evaluating the Robot Personality and Verbal Behavior of Domestic Robots Using Video-Based Studies' in Yangsheng Xu, Huihuan Qian, and Xinyu Wu Eds., Household Service Robotics, (Elsevier, 2014), ISBN: 9780128009437Robots are increasingly being used in domestic environments and should be able to interact with inexperienced users. Human-human interaction and human-computer interaction research findings are relevant, but often limited because robots are different from both humans and computers. Therefore, new human-robot interaction (HRI) research methods can identify the design of robots suitable for inexperienced users. A video-based HRI (VHRI) methodology was used to carry out a multi-national HRI user study for the prototype domestic robot BIRON (BIelefeld RObot companioN). Previously, the VHRI methodology was used in constrained HRI situations, while in this study HRIs involved a series of events as part of a "home tour" scenario. Thus, the present chapter is the first study of this methodology in extended HRI contexts with a multi-national approach. Participants watched videos of the robot interacting with a human actor and rated two robot behaviors (Extrovert and Introvert). Participants' perceptions and ratings of the robot's behaviors differed with regard to both verbal interactions and person following by the robot. The study also confirms that the VHRI methodology provides a valuable means to obtain early user feedback, even before fully working prototypes are available. This can usefully guide the future design studies on robots, and associated verbal and non-verbal behaviors