Prototyping virtual instructors from human-human corpora

Authors:
Luciana Benotti;Alexandre Denis
Affiliations:
National University of Córdoba, Córdoba, Argentina;TALARIS team, LORIA/CNRS, Lorraine, Vandoeuvre-lès-Nancy, France
Venue:
HLT '11 Proceedings of the 49th Annual Meeting of the Association for Computational Linguistics: Human Language Technologies: Systems Demonstrations
Year:
2011

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Abstract

Virtual instructors can be used in several applications, ranging from trainers in simulated worlds to non player characters for virtual games. In this paper we present a novel algorithm for rapidly prototyping virtual instructors from human-human corpora without manual annotation. Automatically prototyping full-fledged dialogue systems from corpora is far from being a reality nowadays. Our algorithm is restricted in that only the virtual instructor can perform speech acts while the user responses are limited to physical actions in the virtual world. We evaluate a virtual instructor, generated using this algorithm, with human users. We compare our results both with human instructors and rule-based virtual instructors hand-coded for the same task.