"Hmm, Did You Hear What I Just Said?": Development of a Re-engagement System for Socially Interactive Robots

Hoang-Long Cao, Paola Cecilia Torrico Moron, Pablo Gomez Esteban, Albert De Beir, Elahe Bagheri, Dirk Lefeber, Bram Vanderborght

Research output: Contribution to journalArticle

Abstract

Maintaining engagement is challenging in human-human interaction. When disengagements happen, people try to adapt their behavior with an expectation that engagement will be regained. In human-robot interaction, although socially interactive robots are engaging, people can easily drop engagement while interacting with robots. This paper proposes a multi-layer re-engagement system which applies different strategies through human-like (non-)verbal behaviors to regain user's engagement taking into account user's attention level and affective states. We conducted a usability test in a robot storytelling scenario to demonstrate technical operation of the system as well as to investigate how people react when interacting with a robot with re-engagement ability. Our usability test results reveal that the system is potential to maintain user's engagement. Our selected users through open-ended questions gave positive comments to the robot with this ability. They also rated the robot with re-engagement ability higher on several dimensions i.e. animacy, likability, perceived intelligence.
Original languageEnglish
Article number95
Pages (from-to)1-15
Number of pages15
JournalRobotics
Volume8
Issue number4
DOIs
Publication statusPublished - Oct 2019

Keywords

  • Socially assistive robots
  • Re-engagement
  • User’s performance
  • User’s perception
  • Gaze
  • Pepper

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