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Titel
Ghost-in-the-Machine reveals human social signals for humanrobot interaction
VerfasserLoth, Sebastian ; Jettka, Katharina ; Giuliani, Manuel ; de Ruiter, Jan P.
Erschienen in
Frontiers in Psychology, Lausanne, 2015, Jg. 6, H. 1641, S. 1-20
ErschienenFrontiers, 2015
SpracheEnglisch
DokumenttypAufsatz in einer Zeitschrift
Schlagwörter (EN)humanrobot interaction / social behavior / eye tracking / interaction strategies / social signals / intention recognition
URNurn:nbn:at:at-ubs:3-1715 Persistent Identifier (URN)
DOI10.3389/fpsyg.2015.01641 
Zugriffsbeschränkung
 Das Werk ist frei verfügbar
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Ghost-in-the-Machine reveals human social signals for humanrobot interaction [1.89 mb]
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Zusammenfassung (Englisch)

We used a new method called “Ghost-in-the-Machine” (GiM) to investigate social interactions with a robotic bartender taking orders for drinks and serving them. Using the GiM paradigm allowed us to identify how human participants recognize the intentions of customers on the basis of the output of the robotic recognizers. Specifically, we measured which recognizer modalities (e.g., speech, the distance to the bar) were relevant at different stages of the interaction. This provided insights into human social behavior necessary for the development of socially competent robots. When initiating the drink-order interaction, the most important recognizers were those based on computer vision. When drink orders were being placed, however, the most important information source was the speech recognition. Interestingly, the participants used only a subset of the available information, focussing only on a few relevant recognizers while ignoring others. This reduced the risk of acting on erroneous sensor data and enabled them to complete service interactions more swiftly than a robot using all available sensor data. We also investigated socially appropriate response strategies. In their responses, the participants preferred to use the same modality as the customers requests, e.g., they tended to respond verbally to verbal requests. Also, they added redundancy to their responses, for instance by using echo questions. We argue that incorporating the social strategies discovered with the GiM paradigm in multimodal grammars of humanrobot interactions improves the robustness and the ease-of-use of these interactions, and therefore provides a smoother user experience.

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