Nonverbal action selection for explanations using an enhanced behavior net

Authors:
Javier Snaider;Andrew M. Olney;Natalie Person
Affiliations:
Computer Science Department & Institute for Intelligent Systems, University of Memphis, Memphis, TN;Institute for Intelligent Systems, University of Memphis, Memphis, TN;Department of Psychology, Rhodes College, Memphis, TN
Venue:
IVA'11 Proceedings of the 10th international conference on Intelligent virtual agents
Year:
2011

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Abstract

In this paper we present a novel approach to the nonverbal action selection problem for an agent in an intelligent tutoring system. We use a variation of the original Maes' Behavior Net that has several improvements that allow modeling action selection using the content of the utterance, communicative goals, and the discourse history. This Enhanced Behavior Net can perform action selection dynamically, reprioritize actions based on all these elements, and resolve conflict situations without the use of sophisticated predefined rules.