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Teachability on Grammatical Inference and its Applications for Natural Language Processing

Research Project

Project/Area Number 21700007
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeSingle-year Grants
Research Field Fundamental theory of informatics
Research InstitutionOkayama Prefectural University

Principal Investigator

TAJIMA Yasuhiro  Okayama Prefectural University, 情報工学部, 准教授 (00334467)

Project Period (FY) 2009 – 2010
Project Status Completed (Fiscal Year 2010)
Budget Amount *help
¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
Fiscal Year 2010: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2009: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Keywords教示可能性 / 質問による学習 / テキストセグメンテーション / 単純決定性言語 / 文脈自由言語 / 文法推論 / ランダムサンプリング
Research Abstract

In this study, we developed a new learning algorithm for a subclass of context-free languages. The main result during the supported term is that we showed polynomial time teachability of a subclass of simple deterministic languages. This language class is polynomial time teachable but it would be hard to learn from example based queries in polynomial time. Thus, our result shows a difference between teaching and learning via queries. Next, we applied our algorithm to natural language processing, then we developed a text segmentation algorithm for conversations and showed the performance improvement. In addition, we applied our algorithm to game tree search. Then we showed an improvement of reinforcement learning algorithm for making the evaluation function. We also confirmed the learning performance is improved by our algorithm.

Report

(3 results)
  • 2010 Annual Research Report   Final Research Report ( PDF )
  • 2009 Annual Research Report
  • Research Products

    (10 results)

All 2011 2010 2009

All Journal Article (5 results) Presentation (5 results)

  • [Journal Article] 分割位置を教師値としたテキストの段落分割2011

    • Author(s)
      但馬康宏
    • Journal Title

      情報処理学会研究報告 2011-MPS-82

      Pages: 1-3

    • Related Report
      2010 Final Research Report
  • [Journal Article] 分割位置を教師値としたテキストの段落分割2011

    • Author(s)
      但馬康宏
    • Journal Title

      情報処理学会研究報告

      Volume: 2011-MPS-82 Pages: 1-3

    • Related Report
      2010 Annual Research Report
  • [Journal Article] 強化学習による評価関数の獲得における報酬設定について2010

    • Author(s)
      但馬康宏
    • Journal Title

      情報処理学会研究報告 2010-GI-24

      Pages: 1-7

    • NAID

      110007993287

    • Related Report
      2010 Final Research Report
  • [Journal Article] 強化学習による評価関数の獲得における報酬設定について2010

    • Author(s)
      但馬康宏
    • Journal Title

      情報処理学会研究報告

      Volume: 2010-GI-24 Pages: 1-7

    • NAID

      110007993287

    • Related Report
      2010 Annual Research Report
  • [Journal Article] 強化学習によるゲームの評価関数の獲得2009

    • Author(s)
      但馬康宏
    • Journal Title

      電子情報通信学会技術研究報告 COMP2009-28

      Pages: 21-26

    • NAID

      110007387429

    • Related Report
      2010 Final Research Report
  • [Presentation] 多段UCB1アルゴリズムによるオセロの実装と評価2010

    • Author(s)
      大多悠介, 但馬康宏
    • Organizer
      電気情報関連学会中国支部連合大会
    • Place of Presentation
      岡山県立大学
    • Year and Date
      2010-10-23
    • Related Report
      2010 Annual Research Report
  • [Presentation] オセロのヒューリスティックな評価要素に対する重み付け2010

    • Author(s)
      福永直起, 但馬康宏
    • Organizer
      電気情報関連学会中国支部連合大会
    • Place of Presentation
      岡山県立大学
    • Year and Date
      2010-10-23
    • Related Report
      2010 Annual Research Report
  • [Presentation] 多段UCB1アルゴリズムによるオセロの実装と評価2010

    • Author(s)
      大多悠介, 但馬康宏
    • Organizer
      第61回電気・情報関連学会中国支部連合大会,発表番号:24-14, pp.47
    • Related Report
      2010 Final Research Report
  • [Presentation] オセロのヒューリスティックな評価要素に対する重み付け2010

    • Author(s)
      福永直起, 但馬康宏
    • Organizer
      第61回電気・情報関連学会中国支部連合大会,発表番号:24-15, pp.475
    • Related Report
      2010 Final Research Report
  • [Presentation] 強化学習によるゲームの評価関数の獲得2009

    • Author(s)
      但馬康宏
    • Organizer
      電子情報通信学会コンピュテーション研究会
    • Place of Presentation
      鳥取環境大学
    • Related Report
      2009 Annual Research Report

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Published: 2009-04-01   Modified: 2016-04-21  

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