User modeling and adaptation in health promotion dialogs with an animated character

Journal of Biomedical Informatics
Fiorella de RosisBerardina De Carolis

Abstract

In this paper, we describe our experience with the design and implementation of an embodied conversational agent (ECA) that converses with users to change their dietary behavior. Our intent is to develop a system that dynamically models the agent and the user and adapts the agent's counseling dialog accordingly. Towards this end, we discuss our efforts to automatically determine the user's dietary behavior stage of change and attitude towards the agent on the basis of unconstrained typed text dialog, first with another person and then with an ECA controlled by an experimenter in a wizard of Oz study. We describe how the results of these studies have been incorporated into an algorithm that combines the results from simple parsing rules together with contextual features using a Bayesian network to determine user stage and attitude automatically.

References

Aug 1, 1994·Journal of Behavioral Medicine·R G LaforgeJ O Prochaska
Oct 4, 2005·Patient Education and Counseling·Timothy BickmoreRosalind Picard

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Citations

Jun 16, 2012·Journal of Medical Internet Research·Catriona M KennedyIain Buchan
Oct 15, 2011·Cognitive Processing·Nicole NovielliSebastiano Pizzutilo
Sep 23, 2014·Journal of Biomedical Informatics·S VosbergenN Peek
Mar 21, 2006·Journal of Biomedical Informatics·Timothy BickmoreRosalind Picard
Oct 2, 2019·Journal of Medical Internet Research·Peppino TropeaMassimo Corbo
Nov 21, 2018··Ayse Aysin BilginHedieh Ranjbartabar

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