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Concepts Learning based on Non-monotonic Logic

Research Project

Project/Area Number 61550258
Research Category

Grant-in-Aid for General Scientific Research (C)

Allocation TypeSingle-year Grants
Research Field 計算機工学
Research InstitutionYokohama National University

Principal Investigator

NAKAGAWA Hiroshi  Faculty of Engineering, Yokohama National University, 工学部, 助教授 (20134893)

Co-Investigator(Kenkyū-buntansha) NAKASHIMA Hideyuki  Electro-Technical-Laboratory, 電子技術総合研究所・電子計算機部, 通産技官 (80344224)
Project Period (FY) 1986 – 1987
Project Status Completed (Fiscal Year 1987)
Budget Amount *help
¥1,300,000 (Direct Cost: ¥1,300,000)
Fiscal Year 1987: ¥300,000 (Direct Cost: ¥300,000)
Fiscal Year 1986: ¥1,000,000 (Direct Cost: ¥1,000,000)
KeywordsNon-nmonotonic Logic / Circumscription / Isa hierarchy / 概念学習 / ISA階層 / 論理型言語 / 学習 / 知識獲得
Research Abstract

The purpose of this research is to design a concepts learning system using nonmonotonic logic. We use TMS's depebdency directed backtracking and McCarthy's circumscription especially. We describe the out-line of out system in the following.
1. Identification of inconsistency: When we find inconsistency in a knowledge base, we must identify the souce of inconsistency in order to be the knowledge base consistent. The dependency directed backtracking is used for this purpose. Since we difine inconsistency as imcompatibility constraints for specified predicate, search space of the above described identification becomes not too large.
2. After identification of the source of inconsistency, in order for consistency, we attach a new predicate. By circumscribing the newly introduced predicate, we obtain an explicit definition of the predicate. In other words, we obtain more precise knowledge base.
3. If we apply these method to isa hierarchy, newly introduced predicate corresponds to a new concept. Corcumscription of the predicate gives us a definition of the new concept.

Report

(2 results)
  • 1987 Final Research Report Summary
  • 1986 Annual Research Report
  • Research Products

    (15 results)

All Other

All Publications (15 results)

  • [Publications] 中川裕志: 情報処理学会論文誌. 27-3. 297-303 (1986)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1987 Final Research Report Summary
  • [Publications] 中川裕志: 人工知能学会誌. 2-1. 14-21 (1987)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1987 Final Research Report Summary
  • [Publications] 中川裕志: 情報処理学会論文誌. 28-4. 330-338 (1987)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1987 Final Research Report Summary
  • [Publications] 森辰則: 情報処理学会論文誌. 28-5. 437-445 (1987)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1987 Final Research Report Summary
  • [Publications] 中島秀之: 人工知能学会誌. 2-3. 367-374 (1987)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1987 Final Research Report Summary
  • [Publications] Hiroshi Nakagawa: "Temporal Knowledge Representation by Multiple World Mechanism of Uranus" Transactions of Information Processing Society of Japan. 27-3. 297-303 (1986)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1987 Final Research Report Summary
  • [Publications] Hiroshi Nakagawa: "Logic + Circumscription = Common-sense Reasoning" Journal of Japanese Society for Artificial Intelligence. 2-1. 14-21 (1987)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1987 Final Research Report Summary
  • [Publications] Hiroshi Nakagawa: "Computable Circumscription in Logic Programming" Transactions of Information Processing Society of Japan. 28-4. 330-338 (1987)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1987 Final Research Report Summary
  • [Publications] Tatsunori Mori: "Computable Circumscription in the Multiple World Mechanism" Transactions of Information Processing Society of Japan. 28-5. 437-445 (1987)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1987 Final Research Report Summary
  • [Publications] Hideyuki Nakashima: "Commonsense Reasoning with the Multiple World Mechanism" Journal of Japanese Society for Artificial Intelligence. 2-3. 367-374 (1987)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1987 Final Research Report Summary
  • [Publications] 中川裕志: 情報処理学会 論文誌. 27. 297-303 (1986)

    • Related Report
      1986 Annual Research Report
  • [Publications] Etsuo Itho: Lecture Notes in Computer Science Logic Programming '85. 221. 44-55 (1986)

    • Related Report
      1986 Annual Research Report
  • [Publications] 伊藤悦雄: 人工知能学会誌. 2. 112-115 (1987)

    • Related Report
      1986 Annual Research Report
  • [Publications] 中川裕志: 情報処理学会 論文誌. 28. (1987)

    • Related Report
      1986 Annual Research Report
  • [Publications] 森辰則: 情報処理学会 論文誌. 28. (1987)

    • Related Report
      1986 Annual Research Report

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Published: 1987-03-31   Modified: 2016-04-21  

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