A Semi-automatic Wizard of Oz Technique for Let'sFly Spoken Dialogue System

Authors:
Alexey Karpov;Andrey Ronzhin;Anastasia Leontyeva
Affiliations:
St. Petersburg Institute for Informatics and Automation of RAS SPIIRAS, St. Petersburg, Russia;St. Petersburg Institute for Informatics and Automation of RAS SPIIRAS, St. Petersburg, Russia;St. Petersburg Institute for Informatics and Automation of RAS SPIIRAS, St. Petersburg, Russia
Venue:
TSD '08 Proceedings of the 11th international conference on Text, Speech and Dialogue
Year:
2008

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Abstract

The paper presents Let'sFly spoken dialogue system intended for natural human-computer interaction via telephone lines in travel planning domain. The system uses ASR, keyword spotting and TTS methods for continuous Russian speech and a dialogue manager with mixed-initiative strategy. Semi- automatic Wizard of Oz technique used for collecting speech data and real dialogues is described. Semi-automatic model is a tradeoff between a fully automatic spoken dialogue system and an interaction with a hidden human-operator working like a computer system. The experimental data obtained with this technique are discussed in the paper.