AAAI Publications, Workshops at the Thirty-Second AAAI Conference on Artificial Intelligence

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Predicting Engagement Breakdown in HRI Using Thin-Slices of Facial Expressions
Tianlin Liu, Arvid Kappas

Last modified: 2018-06-20

Abstract


In many Human-Robot Interaction (HRI) scenarios, robots are expected to actively engage humans in interaction tasks for an extended period. We consider a successful robot to be alert to Engagement Breakdown (EB), a situation in which humans prematurely end the interaction before the robot had the chance to receive a complete feedback. In this paper, we present a method for early EB prediction using Echo State Networks (ESNs), a variant of Recurrent Neural Networks. The method is based on Action Units (AUs) of human facial expressions. We apply the proposed architecture to a real-world dataset and show that the architecture accurately predicts EB behavior using 30 seconds of facial expression features.

Keywords


Engagement Breakdown; Affective Computing; HRI; Echo State Network

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