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Study on Ambiguous Understanding Representation and Response Generation for Spoken Dialog Systems

Research Project

Project/Area Number 19700164
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeSingle-year Grants
Research Field Perception information processing/Intelligent robotics
Research InstitutionNagoya University

Principal Investigator

KITAOKA Norihide  Nagoya University, 大学院・情報科学研究科, 准教授 (10333501)

Project Period (FY) 2007 – 2009
Project Status Completed (Fiscal Year 2009)
Budget Amount *help
¥3,570,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥570,000)
Fiscal Year 2009: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2008: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2007: ¥1,100,000 (Direct Cost: ¥1,100,000)
Keywords音声対話 / 誤認識 / 複数理解状態 / 効率性 / 無矛盾性 / グラフ探索 / ヒューリスティック探索 / ユーザ満足度 / 音声対話システム / 応答戦略 / 自然性
Research Abstract

We proposed a new dialog strategy which can recover from system's misunderstandings without confirmation system utterances. In this strategy, system uses a graph search algorithm, in which each node represent an understanding state. To make a response to the user, system adopts 'efficiency measure' which enables the system efficient search and 'consistency measure' which prevents unnatural response inconsistent with the dialog history. We developed a system with these methods and evaluated it. It is proved that the system was more efficient and obtained more user satisfaction than conventional ones.

Report

(4 results)
  • 2009 Annual Research Report   Final Research Report ( PDF )
  • 2008 Annual Research Report
  • 2007 Annual Research Report
  • Research Products

    (10 results)

All 2010 2009 2008

All Presentation (10 results)

  • [Presentation] Estimation method of user satisfaction using N-gram-based dialog history model for spoken dialog system2010

    • Author(s)
      Sunao Hara
    • Organizer
      Language Resource and Evaluation Conference (LREC2010)
    • Place of Presentation
      Valletta Malta
    • Year and Date
      2010-05-21
    • Related Report
      2009 Annual Research Report
  • [Presentation] Spoken Dialog Strategy Based On Understanding Graph Search2009

    • Author(s)
      Yuji Kinoshita
    • Organizer
      ICASSP2009
    • Place of Presentation
      Taipei International Convention Center, Taiwan
    • Year and Date
      2009-04-21
    • Related Report
      2009 Annual Research Report
  • [Presentation] 理解状態グラフの探索による音声対話戦略2009

    • Author(s)
      木下裕司, 宮島千代美, 北岡教英, 武田一哉
    • Organizer
      日本音響学会
    • Place of Presentation
      東京工業大学
    • Year and Date
      2009-03-19
    • Related Report
      2008 Annual Research Report
  • [Presentation] Spoken dialog strategy based on understanding graph search2009

    • Author(s)
      Y. Kinoshita, C. Miyajima, N. Kitaoka, K. Takeda
    • Organizer
      ICASSP2009
    • Place of Presentation
      Taipei International Convention Center, Taiwan
    • Related Report
      2009 Final Research Report
  • [Presentation] 理解状態グラフの探索による音声対話戦略2009

    • Author(s)
      木下裕司, 宮島千代美, 北岡教英, 武田一哉
    • Organizer
      音響学会春季研究発表会
    • Place of Presentation
      東京工業大学
    • Related Report
      2009 Final Research Report
  • [Presentation] 理解状態のグラフ探索に基づいた音声対話戦略2008

    • Author(s)
      木下裕司, 宮島千代美, 北岡教英, 武田一哉
    • Organizer
      電子情報通信学会NLC研究会
    • Place of Presentation
      NICT
    • Year and Date
      2008-11-10
    • Related Report
      2008 Annual Research Report
  • [Presentation] 検索タスクのための効率的で自然な音声対話戦略2008

    • Author(s)
      木下裕司, 宮島千代美, 北岡教英, 武田一哉
    • Organizer
      電気関係学会東海支部連合大会
    • Place of Presentation
      愛知県立大学
    • Year and Date
      2008-09-19
    • Related Report
      2008 Annual Research Report
  • [Presentation] 誤認識に対処した自然で効 率的な音声対話戦略の評価2008

    • Author(s)
      杉本夏樹, 矢野浩利, 北岡教英, 中川聖一
    • Organizer
      情報処理学会音声言語情報処理研究会
    • Place of Presentation
      静岡県伊東市ホテル暖香園
    • Year and Date
      2008-02-09
    • Related Report
      2007 Annual Research Report
  • [Presentation] 理解状態のグラフ探索に基づいた音声対話戦略2008

    • Author(s)
      木下裕司, 宮島千代美, 北岡教英, 武田一哉
    • Organizer
      電子情報通信学会研究報告
    • Place of Presentation
      NiCT(東京)
    • Related Report
      2009 Final Research Report
  • [Presentation] 誤認識に対処した自然で効率的な音声対話戦略の評価2008

    • Author(s)
      杉本夏樹, 矢野浩利, 北岡教英, 中川聖一
    • Organizer
      情報処理学会研究報告
    • Place of Presentation
      伊東, 静岡
    • Related Report
      2009 Final Research Report

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Published: 2007-04-01   Modified: 2016-04-21  

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