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A Spoken Dialog System for Chat-Like Conversations Considering Response Timing

  • Ryota Nishimura
  • Norihide Kitaoka
  • Seiichi Nakagawa
Part of the Lecture Notes in Computer Science book series (LNCS, volume 4629)

Abstract

If a dialog system can respond to a user as naturally as a human, the interaction will be smoother. In this research, we aim to develop a dialog system by emulating the human behavior in a chat-like dialog. In this paper, we developed a dialog system which could generate chat-like responses and their timing using a decision tree. The system could perform “collaborative completion,” “aizuchi” (back-channel) and so on. The decision tree utilized the pitch and the power contours of user’s utterance, recognition hypotheses, and response preparation status of the response generator, at every time segment as features to generate response timing.

Keywords

Prosodic Feature Pause Duration Speech Recognizer Dialog System Speech Synthesizer 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag Berlin Heidelberg 2007

Authors and Affiliations

  • Ryota Nishimura
    • 1
  • Norihide Kitaoka
    • 2
  • Seiichi Nakagawa
    • 1
  1. 1.Department of Information and Computer Sciences, Toyohashi University of TechnologyJapan
  2. 2.Graduate School of Information Science, Nagoya UniversityJapan

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