From spreading of behavior to dyadic interaction—A robot learns what to imitate

  • Authors:
  • E. I. Barakova;D. Vanderelst

  • Affiliations:
  • Faculty of Industrial Design, Eindhoven University of Technology Den Doleh 2 5612 AZ Eindhoven The Netherlands;Active Perception Lab, University Antwerp, Belgium

  • Venue:
  • International Journal of Intelligent Systems
  • Year:
  • 2011

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Abstract

Imitation learning is a promising way to learn new behavior in robotic multiagent systems and in human-robot interaction. However, imitating agents should be able to decide autonomously which behavior, observed in others, is interesting to copy. This paper shows a method for extraction of meaningful chunks of information from a continuous sequence of observed actions by using a simple recurrent network (Elman Net). Results show that, independently of the high level of task-specific noise, Elman nets can be used for learning through prediction a reoccurring action patterns, observed in another robotic agent. We conclude that this primarily robot to robot interaction study can be generalized to human-robot interaction and show how we use these results for recognizing emotional behaviors in human-robot interaction scenarios. The limitations of the proposed approach and the future directions are discussed. © 2010 Wiley Periodicals, Inc. © 2011 Wiley Periodicals, Inc.