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Approximation of cost functions by tree metrics and approximation of the Shapley values of minimum cost spanning tree games

Research Project

Project/Area Number 15K00033
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Mathematical informatics
Research InstitutionShizuoka University

Principal Investigator

Ando Kazutoshi  静岡大学, 工学部, 准教授 (00312819)

Co-Investigator(Kenkyū-buntansha) 前原 貴憲  国立研究開発法人理化学研究所, 革新知能統合研究センター, ユニットリーダー (20751407)
Research Collaborator SATO Koki  
INAGAKI Ryosuke  
SHOJI Kazuya  
TAKASE Koichi  
ISHIKAWA RUI  
Project Period (FY) 2015-04-01 – 2019-03-31
Project Status Completed (Fiscal Year 2018)
Budget Amount *help
¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000)
Fiscal Year 2017: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2016: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2015: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Keywordsアルゴリズム / 協力ゲーム / Shapley値 / 協力ゲーム理論 / ゲーム理論 / 組合せ最適化 / 離散数学
Outline of Final Research Achievements

In this study, we have developed two approximation algorithms for computing the Shapley values of the minimum cost spanning tree games. One is an approximation algorithm based on sampling. The other is an algorithm which approximates the Shapley value of the given minimum cost spanning tree games by approximating a given cost function with another "special" cost function, for which an efficient algorithm for computing the Shapley value of the associated minimum cost spanning tree game is available. Furthermore, we have obtained an efficient algorithm for finding a representation of a subtree distance, which is such a special cost function. Also, we studied properties and algorithms for the cycle-complete distance, which is an another such special cost function.

Academic Significance and Societal Importance of the Research Achievements

本研究で開発したShapley値の近似計算のためのサンプリング・アルゴリズムは,既存研究より少ないサンプル数で近似解を出力することを示した.もう一つは,費用関数の近似によってShapley値の近似計算を行うアルゴリズムである.後者のアルゴリズムも既存の同様のアルゴリズムよりも高精度の近似解を出力することを数値計算によって示した.このような研究はこれまでほとんど行われて来なかったため,学術的な意義は大きい.また,最小費用全域木ゲームのShapley値の計算の厳密計算は現実的には不可能であるため,最小費用全域木ゲームを現実問題に適用する際には,このような効率的なアルゴリズムの存在は不可欠である.

Report

(5 results)
  • 2018 Annual Research Report   Final Research Report ( PDF )
  • 2017 Research-status Report
  • 2016 Research-status Report
  • 2015 Research-status Report
  • Research Products

    (15 results)

All 2019 2018 2017 2016

All Journal Article (6 results) (of which Peer Reviewed: 3 results,  Open Access: 3 results,  Acknowledgement Compliant: 2 results) Presentation (9 results) (of which Int'l Joint Research: 3 results)

  • [Journal Article] 最小費用全域木ゲームのShapley値に対する近似アルゴリズム2019

    • Author(s)
      高瀬光一, 安藤和敏
    • Journal Title

      数理解析研究所講究録

      Volume: ―

    • Related Report
      2018 Annual Research Report
    • Open Access
  • [Journal Article] An algorithm for finding a representation of a subtree distance2018

    • Author(s)
      Ando Kazutoshi、Sato Koki
    • Journal Title

      Journal of Combinatorial Optimization

      Volume: 36 Issue: 3 Pages: 742-762

    • DOI

      10.1007/s10878-017-0145-x

    • Related Report
      2018 Annual Research Report 2017 Research-status Report
    • Peer Reviewed
  • [Journal Article] Efficient algorithms for subdominant cycle-complete cost functions and cycle-complete solutions2017

    • Author(s)
      Ando Kazutoshi、Inagaki Ryosuke、Shoji Kazuya
    • Journal Title

      Discrete Applied Mathematics

      Volume: 225 Pages: 1-10

    • DOI

      10.1016/j.dam.2017.03.007

    • Related Report
      2017 Research-status Report 2016 Research-status Report
    • Peer Reviewed
  • [Journal Article] 最小増加超距離木問題に対する局所探索アルゴリズム2017

    • Author(s)
      石川累, 安藤和敏
    • Journal Title

      数理解析研究所講究録

      Volume: 2027 Pages: 15-29

    • Related Report
      2017 Research-status Report
    • Open Access
  • [Journal Article] 最小増加超距離木問題に対する局所探索アルゴリズム2017

    • Author(s)
      石川累,安藤和敏
    • Journal Title

      京都大学数理解析研究所講究録

      Volume: 印刷中

    • Related Report
      2016 Research-status Report
    • Open Access / Acknowledgement Compliant
  • [Journal Article] An Algorithm for Finding a Representation of a Subtree Distance2016

    • Author(s)
      Kazutoshi Ando and Koki Sato
    • Journal Title

      Lecture Notes in Computer Science

      Volume: 9849 Pages: 249-259

    • DOI

      10.1007/978-3-319-45587-7_22

    • ISBN
      9783319455860, 9783319455877
    • Related Report
      2016 Research-status Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Presentation] モンテカルロ法による最小費用全域木ゲームのShapley値の計算2019

    • Author(s)
      安藤和敏
    • Organizer
      日本オペレーションズ・リサーチ学会2019年春季研究発表会
    • Related Report
      2018 Annual Research Report
  • [Presentation] 最小費用全域木ゲームのShapley値に対する近似アルゴリズム2018

    • Author(s)
      高瀬光一,安藤和敏
    • Organizer
      京都大学数理解析研究所研究集会「高度情報化社会に向けた数理最適化の新潮流」
    • Related Report
      2018 Annual Research Report
  • [Presentation] 閉路完全距離の指標付き準階層構造による特徴付け2018

    • Author(s)
      安藤和敏, 正治和也
    • Organizer
      日本オペレーションズ・リサーチ学会2018年春季研究発表会
    • Related Report
      2017 Research-status Report
  • [Presentation] An alternative implementation of the exwap algorithm for energy function minimization2017

    • Author(s)
      Koki Yokota,Kazutoshi ando
    • Organizer
      The 4th Conference of Inter-Academia Asia
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Presentation] 部分木距離の表現を見出すためのアルゴリズム2016

    • Author(s)
      安藤和敏,佐藤公紀
    • Organizer
      日本応用数理学会2016年度年会
    • Place of Presentation
      北九州国際会議場
    • Year and Date
      2016-09-12
    • Related Report
      2016 Research-status Report
  • [Presentation] 最小増加超距離木問題に対する局所探索アルゴリズム2016

    • Author(s)
      石川累, 安藤和敏
    • Organizer
      京都大学数理解析研究所研究集会「最適化技法の最先端と今後の展開」
    • Place of Presentation
      京都大学数理解析研究所
    • Year and Date
      2016-08-25
    • Related Report
      2016 Research-status Report
  • [Presentation] An algorithm for finding a representation of a subtree distance2016

    • Author(s)
      Kazutoshi Ando and Koki Sato
    • Organizer
      4th International Symposium on Combinatorial Optimization
    • Place of Presentation
      Lloyd's Baia Hotel (Italy, Vietri sul Mare)
    • Year and Date
      2016-05-16
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research
  • [Presentation] An algorithm for finding a representation of a subtree distance2016

    • Author(s)
      Kazutoshi Ando and Koki Sato
    • Organizer
      4th International Symposium on Combinatorial Optimization
    • Place of Presentation
      Vietri sul Mare (Italy)
    • Year and Date
      2016-05-16
    • Related Report
      2015 Research-status Report
    • Int'l Joint Research
  • [Presentation] 最小費用全域木ゲームに対する閉路完全解について2016

    • Author(s)
      安藤和敏,稲垣亮祐,正治和也
    • Organizer
      日本オペレーションズ・リサーチ学会春季研究発表会
    • Place of Presentation
      慶應義塾大学(神奈川県横浜市)
    • Year and Date
      2016-03-17
    • Related Report
      2015 Research-status Report

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Published: 2015-04-16   Modified: 2020-03-30  

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