対話に関するリズムや同調作用を考慮した音声対話システム  [in Japanese] Spoken Dialog System considered Rhythm and Synchronized Tendency of Conversation  [in Japanese]

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Author(s)

Abstract

人間同士の対話における最適な対話のリズムは,その対話の中で生まれる.対話の中でそのリズムを意識することにより,より円滑で満足度の高い対話を行うことが期待できる.本稿では,人間と人間のコミュニケーションをできるだけ模倣する方向性の一つとして,対話のリズムを重視した音声対話システムを開発し,ユーザに自然な発話を促すことでユーザ満足度の向上を目指す.今回,我々が着目した対話のリズムの要素は,システムからの発話や相槌のタイミング,発話速度である.これらの自然なリズムを実現するために,ポーズ単位で言語理解を行いながら,発話途中でも相手のタスク意図を予測する言語理解部,ユーザモデルを用いて協調的でリズムを考慮した応答を生成する応答生成部,相槌判定を含む話者交代判定とリズムの同調をリアルタイムに行う対話リズム生成部の3つのモジュールを新たに作成し,タスク指向型の音声対話システムを構築した.

The best rhythm of the conversation between humans is developed during their conversation. It can be expected that users conscious of rhythm will perform smoother conversation. In this paper, as one of the methods is to copy human communication abilities as much as possible, we develop spoken dialog system which puts the importance to the rhythm of dialog aiming at improvement of user satisfaction by encouraging an user to utter naturally. Elements of rhythm of dialog that we paid our attention is speaking rate and timing of an utterance and backchanneling from a system. To realize such natural rhythm, we newly designed three modules-Understanding Component to predict user's task intention in the middle of his utterance while performing language understanding by a pause unit; Response Generator which generates the response considering rhythm and uses a user model; Rhythm Generator to perform a speaker change judgment including backchanneling judgment and rythm synchronization in real time. These components are to construct a task oriented spoken dialog system.

Journal

  • IPSJ SIG Notes

    IPSJ SIG Notes 61, 43-48, 2006-05-11

    Information Processing Society of Japan (IPSJ)

References:  12

Cited by:  3

Codes

  • NII Article ID (NAID)
    110004849722
  • NII NACSIS-CAT ID (NCID)
    AN10442647
  • Text Lang
    JPN
  • Article Type
    Journal Article
  • ISSN
    09196072
  • NDL Article ID
    7936518
  • NDL Source Classification
    ZM13(科学技術--科学技術一般--データ処理・計算機)
  • NDL Call No.
    Z14-1121
  • Data Source
    CJP  CJPref  NDL  NII-ELS 
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