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Titel
To err is robot : how humans assess and act toward an erroneous social robot
VerfasserMirnig, Nicole ; Stollnberger, Gerald ; Miksch, Markus ; Stadler, Susanne ; Giuliani, Manuel ; Tscheligi, Manfred
Erschienen in
Frontiers in Robotics and AI, Lausanne, 2017, Jg. 2017, S. 1-15
ErschienenFrontiers, 2017
SpracheEnglisch
DokumenttypAufsatz in einer Zeitschrift
Schlagwörter (EN)social humanrobot interaction / robot errors / user experience / social signals / likeability / faulty robots / error situations / Pratfall Effect
ISSN2296-9144
URNurn:nbn:at:at-ubs:3-6608 Persistent Identifier (URN)
DOI10.3389/frobt.2017.00021 
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We conducted a user study for which we purposefully programmed faulty behavior into a robots routine. It was our aim to explore if participants rate the faulty robot different from an error-free robot and which reactions people show in interaction with a faulty robot. The study was based on our previous research on robot errors where we detected typical error situations and the resulting social signals of our participants during social humanrobot interaction. In contrast to our previous work, where we studied video material in which robot errors occurred unintentionally, in the herein reported user study, we purposefully elicited robot errors to further explore the human interaction partners social signals following a robot error. Our participants interacted with a human-like NAO, and the robot either performed faulty or free from error. First, the robot asked the participants a set of predefined questions and then it asked them to complete a couple of LEGO building tasks. After the interaction, we asked the participants to rate the robots anthropomorphism, likability, and perceived intelligence. We also interviewed the participants on their opinion about the interaction. Additionally, we video-coded the social signals the participants showed during their interaction with the robot as well as the answers they provided the robot with. Our results show that participants liked the faulty robot significantly better than the robot that interacted flawlessly. We did not find significant differences in peoples ratings of the robots anthropomorphism and perceived intelligence. The qualitative data confirmed the questionnaire results in showing that although the participants recognized the robots mistakes, they did not necessarily reject the erroneous robot. The annotations of the video data further showed that gaze shifts (e.g., from an object to the robot or vice versa) and laughter are typical reactions to unexpected robot behavior. In contrast to existing research, we assess dimensions of user experience that have not been considered so far and we analyze the reactions users express when a robot makes a mistake. Our results show that decoding a humans social signals can help the robot understand that there is an error and subsequently react accordingly.

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CC-BY-Lizenz (4.0)Creative Commons Namensnennung 4.0 International Lizenz