TitleSocial Engagement in Public Places: A Tale of One Robot
Publication TypeConference Proceedings
Year of Conference2014
AuthorsMoshkina, L, Trickett, SB, Trafton, JG
Conference NameProceedings of the 2014 ACM/IEEE International Conference on Human-robot Interaction
Date Published03/2014
Conference LocationBielefeld, Germany

In this paper, we describe a large-scale (over 4000 participants)
observational field study at a public venue, designed to explore
how social a robot needs to be for people to engage with it. In this
study we examined a prediction of Computers Are Social Actors
(CASA) framework: the more machines present human-like
characteristics in a consistent manner, the more likely they are to
invoke a social response. Our humanoid robot’s behavior varied
in the amount of social cues, from no active social cues to
increasing levels of social cues during story-telling to human-like
game-playing interaction. We found several strong aspects of
support for CASA: the robot that provides even minimal social
cues (speech) is more engaging than a robot that does nothing,
and the more human-like the robot behaved during story-telling,
the more social engagement was observed. However, contrary to
the prediction, the robot’s game-playing did not elicit more
engagement than other, less social behaviors.

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