Co-training for predicting emotions with spoken dialogue data

Authors:
Beatriz Maeireizo;Diane Litman;Rebecca Hwa
Affiliations:
University of Pittsburgh, Pittsburgh, PA;University of Pittsburgh, Pittsburgh, PA;University of Pittsburgh, Pittsburgh, PA
Venue:
ACLdemo '04 Proceedings of the ACL 2004 on Interactive poster and demonstration sessions
Year:
2004

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Abstract

Natural Language Processing applications often require large amounts of annotated training data, which are expensive to obtain. In this paper we investigate the applicability of Co-training to train classifiers that predict emotions in spoken dialogues. In order to do so, we have first applied the wrapper approach with Forward Selection and Naïve Bayes, to reduce the dimensionality of our feature set. Our results show that Co-training can be highly effective when a good set of features are chosen.