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2014
Srinivasan, V.; Bethel, C. L.; Murphy, R. R. (2014): Evaluation of Head Gaze Loosely Synchronized With Real-Time Synthetic Speech for Social Robots. In: IEEE Transactions on Human-Machine Systems 44 (6), S. 767-778. DOI: 10.1109/THMS.2014.2342035

DOI: https://doi.org/10.1109/THMS.2014.2342035

Abstract: This study demonstrates that robots can achieve socially acceptable interactions using loosely synchronized head gaze-speech acts. Prior approaches use tightly synchronized head gaze-speech, which requires significant human effort and time to manually annotate synchronization events in advance, restricts interactive dialog, or requires that the operator acts as a puppeteer. This paper describes how autonomous synchronization of head gaze can be achieved by exploiting affordances in the sentence structure and time delays. A 93-participant user study was conducted in a simulated disaster site. The rescue robot “Survivor Buddy” generated head gaze for a victim management scenario using a 911 dialog. The study used pre- and postinteraction questionnaires to compare the social acceptance level of loosely synchronized head gaze-speech against tightly synchronized head gaze-speech (manual annotation) and no head gaze-speech conditions. The results indicated that for attributes of Self-Assessment Manikin, i.e., Arousal, Robot Likeability, Human-Like Behavior, Understanding Robot Behavior, Gaze-Speech Synchronization, Looking at Objects at Appropriate Times, and Natural Movement, the loosely synchronized head gaze-speech is similar to tightly synchronized head gaze-speech and preferred to the no head gaze-speech case. This study contributes to a fundamental understanding of the role of social head gaze in social acceptance for human-machine interaction, how social gaze can be produced, and promotes practical implementation in social robots.

Keywords: Angemessen(heit) (von Technik), Autonomous generation, autonomous head gaze synchronization, Evaluation, human robot interactions, Human-Machine Interaction, human-robot interaction, Human–robot interaction, ieee xplore, interactive conversation, interactive systems, loosely synchronized head gaze-speech acts, real-time synthetic speech, Real-time systems, rescue robots, Robot kinematics, self-assessment manikin, social head gaze, social robots, speech, Survivor Buddy rescue robot, synchronisation, Synchronization, tightly synchronized head gaze-speech, User study, victim management scenario

2014

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