System Design, Data Collection and Evaluation of a Speech Dialogue System

Katunobu ITOU, Satoru HAYAMIZU, Kazuyo TANAKA, Hozumi TANAKA

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Summary :

This paper describes design issues of a speech dialogue system, the evaluation of the system, and the data collection of spontaneous speech in a transportation guidance domain. As it is difficult to collect spontaneous speech and to use a real system for the collection and evaluation, the phenomena related with dialogues have not been quantitatively clarified yet. The authors constructed a speech dialogue system which operates in almost real time, with acceptable recognition accuracy and flexible dialogue control. The system was used for spontaneous speech collection in a transportation guidance domain. The system performance evaluated in the domain is the understanding rate of 84.2% for the utterances within the predefined grammar and the lexicon. Also some statistics of the spontaneous speech collected are given.

Publication
IEICE TRANSACTIONS on Information Vol.E76-D No.1 pp.121-127
Publication Date
1993/01/25
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Special Section PAPER (Special Issue on Speech and Discourse Processing in Dialogue Systems)
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