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Computational complexity on enumeration problems on big data analysis and applications of high-speed enumeration algorithms

Research Project

Project/Area Number 19K11812
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 60010:Theory of informatics-related
Research InstitutionIwate University

Principal Investigator

Yamanaka Katsuhisa  岩手大学, 理工学部, 教授 (60508836)

Project Period (FY) 2019-04-01 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥3,380,000 (Direct Cost: ¥2,600,000、Indirect Cost: ¥780,000)
Fiscal Year 2021: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2020: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2019: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Keywords列挙 / アルゴリズム / アルゴリズム理論
Outline of Research at the Start

列挙問題は,ビッグデータ解析において非常に重要な研究テーマである.本研究では,列挙問題を,理論的な立場と応用的な立場の両方から扱う.1つの研究目的は,列挙問題がなぜ難しいのかを探り,知見を創出することである.もう1つの研究目的は,列挙問題に対して高速なアルゴリズムを提案することである.上記の両方向からのアプローチにより,近年注目されている列挙アルゴリズム分野に対して貢献を果たすことを目的とする.

Outline of Final Research Achievements

In this research, we have the following 3 contributions. The first contribution is to propose an efficient algorithm that enumerates all the highly-edge-connected spanning subgraphs of an input graph. The second contribution is to define a surrounding polygon, which is a new class of simple polygons, and to propose an efficient algorithm that enumerate all the surrounding polygons of an input point set. The third contribution is to present an characterization of the length of a shortest reconfiguration sequence between two optimal ladder lotteries of a permutation and a linear-time algorithm for finding a shortest reconfiguration sequence.

Academic Significance and Societal Importance of the Research Achievements

本研究において得られた主な研究成果について説明する.辺連結度が高い全域部分グラフを列挙する問題は避難路計画への応用に着目した問題設定である.この列挙問題は,古典的な列挙問題である全域木列挙問題の拡張になっており,学術的にも意味のある成果である.次に,2次元平面上の点集合に対して,包囲多角形という単純多角形を提案し,それに対する高速な列挙アルゴリズムを設計した.計算幾何分野における新しい多角形クラスを提案したという意義がある.最後に,置換Pに対する最適あみだくじと,あみだくじ間のブレイドリレーションによって定義される遷移グラフ上で,最短遷移という観点から考察を与える貢献を果たした.

Report

(4 results)
  • 2021 Annual Research Report   Final Research Report ( PDF )
  • 2020 Research-status Report
  • 2019 Research-status Report
  • Research Products

    (13 results)

All 2022 2021 2020 2019 Other

All Int'l Joint Research (2 results) Journal Article (6 results) (of which Int'l Joint Research: 2 results,  Peer Reviewed: 6 results,  Open Access: 1 results) Presentation (5 results) (of which Int'l Joint Research: 4 results)

  • [Int'l Joint Research] マギル大学(カナダ)

    • Related Report
      2020 Research-status Report
  • [Int'l Joint Research] ワルシャワ大学(ポーランド)

    • Related Report
      2020 Research-status Report
  • [Journal Article] A Polynomial Delay Algorithm for Enumerating 2-Edge-Connected Induced Subgraphs2022

    • Author(s)
      ITO Taishu、SANO Yusuke、YAMANAKA Katsuhisa、HIRAYAMA Takashi
    • Journal Title

      IEICE Transactions on Information and Systems

      Volume: E105.D Issue: 3 Pages: 466-473

    • DOI

      10.1587/transinf.2021FCP0005

    • NAID

      130008165589

    • ISSN
      0916-8532, 1745-1361
    • Year and Date
      2022-03-01
    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] An <i>O</i>(<i>n</i><sup>2</sup>)-Time Algorithm for Computing a Max-Min 3-Dispersion on a Point Set in Convex Position2022

    • Author(s)
      KOBAYASHI Yasuaki、NAKANO Shin-ichi、UCHIZAWA Kei、UNO Takeaki、YAMAGUCHI Yutaro、YAMANAKA Katsuhisa
    • Journal Title

      IEICE Transactions on Information and Systems

      Volume: E105.D Issue: 3 Pages: 503-507

    • DOI

      10.1587/transinf.2021FCP0013

    • NAID

      130008165607

    • ISSN
      0916-8532, 1745-1361
    • Year and Date
      2022-03-01
    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Optimal reconfiguration of optimal ladder lotteries2021

    • Author(s)
      Katsuhisa Yamanaka, Takashi Horiyama, Kunihiro Wasa
    • Journal Title

      Theoretical Computer Science

      Volume: 859 Pages: 57-69

    • DOI

      10.1016/j.tcs.2021.01.009

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] Algorithmic Enumeration of Surrounding Polygons2020

    • Author(s)
      K. Yamanaka, D. Avis, T. Horiyama, Yoshio Okamoto, R. Uehara and T. Yamauchi
    • Journal Title

      Discrete Applied Mathematics

      Volume: online Pages: 1-19

    • DOI

      10.1016/j.dam.2020.03.034

    • Related Report
      2021 Annual Research Report 2020 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Parameterized complexity of independent set reconfiguration problems2020

    • Author(s)
      Ito Takehiro、Kaminski Marcin、Ono Hirotaka、Suzuki Akira、Uehara Ryuhei、Yamanaka Katsuhisa
    • Journal Title

      Discrete Applied Mathematics

      Volume: - Pages: 336-345

    • DOI

      10.1016/j.dam.2020.01.022

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Enumerating Highly-Edge-Connected Spanning Subgraphs2019

    • Author(s)
      Katsuhisa Yamanaka, Yasuko Matsui, and Shin-ichi Nakano
    • Journal Title

      IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences

      Volume: E102.A Issue: 9 Pages: 1002-1006

    • DOI

      10.1587/transfun.E102.A.1002

    • NAID

      130007699444

    • ISSN
      0916-8508, 1745-1337
    • Year and Date
      2019-09-01
    • Related Report
      2019 Research-status Report
    • Peer Reviewed
  • [Presentation] Computational Complexity of Kirby2022

    • Author(s)
      太田涼平, 伊藤大修, 山中克久, 平山貴司
    • Organizer
      第16回組合せゲーム・パズル研究集会
    • Related Report
      2021 Annual Research Report
  • [Presentation] Max-Min 3-dispersion on a Convex Polygon2021

    • Author(s)
      Yasuaki Kobayashi, Shin-ichi Nakano, Kei Uchizawa, Takeaki Uno, Yutaro Yamaguchi, Katsuhisa Yamanaka
    • Organizer
      The 37th European Workshop on Computational Geometry (EuroCG 2021)
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] A polynomial delay algorithm for enumerating 2-edge-connected induced subgraphs2020

    • Author(s)
      Katsuhisa Yamanaka
    • Organizer
      The 14th International Frontiers of Algorithmics Workshop
    • Related Report
      2020 Research-status Report
    • Int'l Joint Research
  • [Presentation] Sorting by five prefix reversals2020

    • Author(s)
      Katsuhisa Yamanaka
    • Organizer
      情報処理学会アルゴリズム研究会
    • Related Report
      2020 Research-status Report
    • Int'l Joint Research
  • [Presentation] Enumeration of Surrounding Polygons2019

    • Author(s)
      Katsuhisa Yamanaka
    • Organizer
      3rd International Workshop on Enumeration Problems & Applications
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research

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Published: 2019-04-18   Modified: 2023-01-30  

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