Improving accuracy of intention-based response classification using decision tree.

This study focused on improving the dialogue act classification to classify a user utterance into a response class using a decision tree approach. Decision tree classifier is tested on 64 mixed-initiative, transaction dialogue corpus in theater domain. The result from the comparative experiment show...

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Bibliographic Details
Main Authors: Ali, S. A., Sulaiman, Md. Nasir, Mustapha, Aida, Mustapha, Norwati
Format: Article
Language:English
English
Published: Asian Network for Scientific Information 2009
Online Access:http://psasir.upm.edu.my/id/eprint/15143/
http://psasir.upm.edu.my/id/eprint/15143/1/Improving%20accuracy%20of%20intention.pdf
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Summary:This study focused on improving the dialogue act classification to classify a user utterance into a response class using a decision tree approach. Decision tree classifier is tested on 64 mixed-initiative, transaction dialogue corpus in theater domain. The result from the comparative experiment show that decision tree able to achieve 81.95% recognition accuracy in classification better than the 73.9% obtained using Bayesian networks and 71.3% achieved by using Maximum likelihood estimation. This result showed that the performance of decision tree as classifier is well suited for these tasks.