Utterance Classification in AutoTutor
by
Andrew Olney Max
BibTeX
@MISC{Max_utteranceclassification,
author = {Andrew Olney Max},
title = {Utterance Classification in AutoTutor},
year = {}
}
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Abstract
This paper describes classification of typed student utterances within AutoTutor, an intelligent tutoring system. Utterances are classified to one of 18 categories, including 16 question categories. The classifier presented uses part of speech tagging, cascaded finite state transducers, and simple disambiguation rules. Shallow NLP is well suited to the task: session log file analysis reveals significant classification of eleven question categories, frozen expressions, and assertions.
