Multi-domain spoken dialogue system with extensibility and robustness against speech recognition errors

Kazunori Komatani, Naoyuki Kanda, Mikio Nakano, Kazuhiro Nakadai, Hiroshi Tsujino, Tetsuya Ogata, Hiroshi G. Okuno

Research output: Chapter in Book/Report/Conference proceedingConference contribution

28 Citations (Scopus)

Abstract

We developed a multi-domain spoken dialogue system that can handle user requests across multiple domains. Such systems need to satisfy two requirements: extensibility and robustness against speech recognition errors. Extensibility is required to allow for the modification and addition of domains independent of other domains. Robustness against speech recognition errors is required because such errors are inevitable in speech recognition. However, the systems should still behave appropriately, even when their inputs are erroneous. Our system was constructed on an extensible architecture and is equipped with a robust and extensible domain selection method. Domain selection was based on three choices: (I) the previous domain, (II) the domain in which the speech recognition result can be accepted with the highest recognition score, and (III) other domains. With the third choice we newly introduced, our system can prevent dialogues from continuously being stuck in an erroneous domain. Our experimental results, obtained with 10 subjects, showed that our method reduced the domain selection errors by 18.3%, compared to a conventional method.

Original languageEnglish
Title of host publicationCOLING/ACL 2006 - SIGdial06
Subtitle of host publication7th SIGdial Workshop on Discourse and Dialogue, Proceedings of the Workshop
PublisherAssociation for Computational Linguistics (ACL)
Pages9-17
Number of pages9
ISBN (Print)193243271X, 9781932432718
DOIs
Publication statusPublished - 2006 Jan 1
Externally publishedYes
Event7th SIGdial Workshop on Discourse and Dialogue, SIGdial06 - Sydney, NSW, Australia
Duration: 2006 Jul 152006 Jul 16

Publication series

NameCOLING/ACL 2006 - SIGdial06: 7th SIGdial Workshop on Discourse and Dialogue, Proceedings of the Workshop

Conference

Conference7th SIGdial Workshop on Discourse and Dialogue, SIGdial06
CountryAustralia
CitySydney, NSW
Period06/7/1506/7/16

ASJC Scopus subject areas

  • Computer Graphics and Computer-Aided Design
  • Computer Vision and Pattern Recognition
  • Human-Computer Interaction
  • Modelling and Simulation

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    Komatani, K., Kanda, N., Nakano, M., Nakadai, K., Tsujino, H., Ogata, T., & Okuno, H. G. (2006). Multi-domain spoken dialogue system with extensibility and robustness against speech recognition errors. In COLING/ACL 2006 - SIGdial06: 7th SIGdial Workshop on Discourse and Dialogue, Proceedings of the Workshop (pp. 9-17). (COLING/ACL 2006 - SIGdial06: 7th SIGdial Workshop on Discourse and Dialogue, Proceedings of the Workshop). Association for Computational Linguistics (ACL). https://doi.org/10.3115/1654595.1654598