A Telephone-Based Railway Information System for Spanish: Development of a Methodology for Spoken Dialogue Design

In this paper, we describe the steps carried out for developing a Railway Information Service for Spanish. This work introduces a methodology for designing dialogue managers in spoken dialogue systems for restricted domains. In this methodology several sources of information are combined: intuition, observation and simulation for defining several dialogue strategies, evaluating them and choosing the best. Users in a final evaluation gave the system a 3.9 score in a 5-point scale with an average call duration of 204 s.

[1]  Javier Macías Guarasa,et al.  Improved variable preselection list length estimation using NNs in a large vocabulary telephone speech recognition system , 2000, INTERSPEECH.

[2]  Wayne H. Ward,et al.  The CU communicator: an architecture for dialogue systems , 2000, INTERSPEECH.

[3]  Gert Veldhuijzen van Zanten User modelling in adaptive dialogue management , 1999, EUROSPEECH.

[4]  Giuseppe Riccardi,et al.  Stochastic language adaptation over time and state in natural spoken dialog systems , 2000, IEEE Trans. Speech Audio Process..

[5]  Lori Lamel,et al.  The LIMSI ARISE system , 2000, Speech Commun..

[6]  Jean-Luc Gauvain,et al.  The LIMSI RailTel System: Field trial of a telephone service for rail travel information , 1997, Speech Commun..

[7]  Rubén San-Segundo-Hernández,et al.  Spanish recognizer of continuously spelled names over the telephone , 2000, Speech Commun..

[8]  Niels Ole Bernsen,et al.  Designing interactive speech systems - from first ideas to user testing , 1998 .

[9]  Morena Danieli,et al.  Field trials of the Italian ARISE train timetable system , 2000, Speech Commun..

[10]  Javier Macías Guarasa,et al.  Acoustical and lexical based confidence measures for a very large vocabulary telephone speech hypothesis-verification system , 2000, INTERSPEECH.

[11]  Guy Perennou,et al.  Confirmation strategies to improve correction rates in a telephonic inquiry dialogue system , 1999, EUROSPEECH.

[12]  Ricardo de Córdoba,et al.  Restricted-domain female-voice synthesis in Spanish: from database design to ANN prosodic modeling , 2000, INTERSPEECH.

[13]  Lou Boves,et al.  Issues in Spoken Dialogue Systems: Experiences with the Dutch Arise System , 2000 .

[14]  Alexander I. Rudnicky,et al.  Task and domain specific modelling in the Carnegie Mellon communicator system , 2000, INTERSPEECH.

[15]  Hauke Schramm,et al.  Strategies for name recognition in automatic directory assistance systems , 2000, Speech Commun..