Exploring Minimal Nonverbal Interruption in Social HRI
Date
2010-10-05T15:22:17Z
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Abstract
Designing robotic behaviours capable of initiating an
interruption will be extremely important as robots
increasingly interact with people. In this paper, we evaluate
a minimal set of physical and nonverbal cues that can be
exhibited by a robot to initiate robot-human interruption: (a)
speed of motion, (b) gaze, (c) head movement, d) rotation
and (e) proximity to the person. We then present a set of
studies. For requirements gathering, we started with
observations of interruption between humans, with a human
actor attempting to interrupt other humans while being
constrained to use only a set of behavioural cues that could
be mimicked by a simple nonverbal robot. Next, we
programmed a robot to exhibit these social nonverbal cues,
and tested their feasibility in two separate pilot user
evaluations. Finally, we performed an extensive user study
of robotic nonverbal interruption across interruption
scenarios. People were able to interpret robot behaviour as
interruptions, and we identified the dominant cues people
used to relate robotic behaviour to interruption urgency.
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Keywords
Interruption, Human Robot Interaction, HRI