A speech interface for open-domain question-answering

  • Authors:
  • Edward Schofield;Zhiping Zheng

  • Affiliations:
  • ftw. Telecommunications Research Center, Vienna, Austria;Saarland University, Saarbrücken, Germany

  • Venue:
  • ACL '03 Proceedings of the 41st Annual Meeting on Association for Computational Linguistics - Volume 2
  • Year:
  • 2003

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Abstract

Speech interfaces to question-answering systems offer significant potential for finding information with phones and mobile networked devices. We describe a demonstration of spoken question answering using a commercial dictation engine whose language models we have customized to questions, a Web-based text-prediction interface allowing quick correction of errors, and an open-domain question-answering system, AnswerBus, which is freely available on the Web. We describe a small evaluation of the effect of recognition errors on the precision of the answers returned and make some concrete recommendations for modifying a question-answering system for improving robustness to spoken input.