Towards an expressive virtual tutor: an implementation of a virtual tutor based on an empirical study of non-verbal behaviour

Authors:
Maher Ben Moussa;Zerrin Kasap;Nadia Magnenat-Thalmann;Krishna Chandramouli;Seyed Navid Haji Mirza;Qianni Zhang;Ebroul Izquierdo;Iordanis Biperis;Petros Daras
Affiliations:
University of Geneva, Carouge, Switzerland;University of Geneva, Carouge, Switzerland;University of Geneva, Carouge, Switzerland;Queen Mary, University of London, London, United Kingdom;Queen Mary, University of London, London, United Kingdom;Queen Mary, University of London, London, United Kingdom;Queen Mary, University of London, London, United Kingdom;Informatics Telematic Institute, Thessaloniki, Greece;Informatics Telematic Institute, Thessaloniki, Greece
Venue:
Proceedings of the 2010 ACM workshop on Surreal media and virtual cloning
Year:
2010

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Abstract

In this paper we investigate the non-verbal behaviour of a tutor and propose a model for ECAs (Embodied Conversational Agents) acting as virtual tutors. We have conducted an empirical study where we focused on the distribution of gaze, head and eyebrowns behaviour of the tutors in a teaching scenario and on the co-occurrences of these behaviours with certain teaching activities or conversational events. Further, we built an ECA with conversational capabilities, episodic memory, emotions and expressive behaviour based on the result from the empirical study.