• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to previous page

Deepening Fixed-Parameter Algorithms for Discrete Optimization: Polynomial-Time FPT and Practical Applications

Research Project

Project/Area Number 17K00017
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Theory of informatics
Research InstitutionOsaka Metropolitan University (2022-2023)
Osaka Prefecture University (2017-2021)

Principal Investigator

Uno Yushi  大阪公立大学, 大学院情報学研究科, 教授 (60244670)

Project Period (FY) 2017-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2020: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2019: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2018: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2017: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Keywords固定パラメータアルゴリズム / 離散最適化 / パラメータ化計算複雑さ / 多項式時間アルゴリズム / 平面的グラフ / 交差数 / ネットワーク解析 / バイオネットワーク / 固定パラメータ容易性 / 近傍多様性 / 標的集合選択問題 / 識別コード / ネットワーク中心性 / クラスター編集 / 実ネットワーク / 頂点被覆 / パラメータ化計算 / ハミルトン性 / 媒介中心性 / コミュニティ発見 / 資金循環問題
Outline of Final Research Achievements

In the framework of parameterized computation, which has been developed in the field of algorithm theory, we have advanced the current research, which is mainly theoretical results, into practical applications of fixed-parameter algorithm theory, which is established as a technique for designing efficient algorithms.
In the area of graph drawing, we have dealt with the problems of drawing edges of a graph with a fixed order of vertices in a small number of pages without crossing, and minimizing the number of crossings on each page, and proposed parameterized algorithms for various parameters.
We also proposed a method to measure the degree of change of networks. As an application, we focused on the change in the bacterial interaction network in the field of bioinformatics, developed a method to identify disease-causing bacteria, and provided it as a general-purpose application.

Academic Significance and Societal Importance of the Research Achievements

理論計算機科学における計算複雑さやアルゴリズム理論の分野で発展を遂げ新潮流を形成するパラメータ化計算という枠組みのもとで,離散最適化に対する効率的なアルゴリズムの設計技法として確立しつつある固定パラメータアルゴリズム理論を扱い,現時点では理論的な成果が中心の固定パラメータアルゴリズムの研究を実用化の段階へと推し進めることを目指した.その成果の一つとしてネットワークの変化度を測る手法を提案した.具体的な応用先としてバイオインフォマティクスでの細菌間相互作用ネットワークの変化量に着目し,病気の原因となる細菌を特定する手法を開発したうえで汎用アプリケーションとして提供したことは社会的意義が大きい.

Report

(8 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Research-status Report
  • 2021 Research-status Report
  • 2020 Research-status Report
  • 2019 Research-status Report
  • 2018 Research-status Report
  • 2017 Research-status Report
  • Research Products

    (23 results)

All 2024 2023 2022 2021 2020 2019 2018 2017

All Journal Article (15 results) (of which Int'l Joint Research: 7 results,  Peer Reviewed: 15 results,  Open Access: 6 results) Presentation (8 results) (of which Int'l Joint Research: 6 results,  Invited: 1 results)

  • [Journal Article] QNetDiff: a quantitative measurement of network rewiring2024

    • Author(s)
      Shota Nose, Hirotsugu Shiroma, Takuji Yamada, Yushi Uno
    • Journal Title

      BMC Bioinformatics

      Volume: 25 Issue: 1 Pages: 118-118

    • DOI

      10.1186/s12859-024-05702-z

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Upper Clique Transversals in Graphs2023

    • Author(s)
      Martin Milanic, Yushi Uno
    • Journal Title

      Lecture Notes in Computer Science

      Volume: 14093 Pages: 432-446

    • DOI

      10.1007/978-3-031-43380-1_31

    • ISBN
      9783031433795, 9783031433801
    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Efficient Computation of Betweenness Centrality by Graph Decompositions and Their Applications to Real-World Networks2022

    • Author(s)
      Tatsuya INOHA, Kunihiko SADAKANE, Yushi UNO, Yuma YONEBAYASHI
    • Journal Title

      IEICE Transactions on Information and Systems

      Volume: E105.D Issue: 3 Pages: 451-458

    • DOI

      10.1587/transinf.2021FCP0003

    • NAID

      130008165588

    • ISSN
      0916-8532, 1745-1361
    • Year and Date
      2022-03-01
    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Journal Article] Linear-Time Recognition of Double-Threshold Graphs2022

    • Author(s)
      Yusuke Kobayashi, Yoshio Okamoto, Yota Otachi, Yushi Uno
    • Journal Title

      Algorithmica 84(4): 1163-1181 (2022)

      Volume: 84 Issue: 4 Pages: 1163-1181

    • DOI

      10.1007/s00453-021-00921-9

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Linear-Time Recognition of Double-Threshold Graphs2020

    • Author(s)
      Yusuke Kobayashi, Yoshio Okamoto, Yota Otachi, Yushi Uno
    • Journal Title

      Lecture Notes in Computer Science

      Volume: 12301 Pages: 286-297

    • DOI

      10.1007/978-3-030-60440-0_23

    • ISBN
      9783030604394, 9783030604400
    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] Gourds: A Sliding-Block Puzzle with Turning2020

    • Author(s)
      Joep Hamersma, Marc J. van Kreveld, Yushi Uno, Tom C. van der Zanden
    • Journal Title

      LIPICS (Leibniz International Proceedings in Informatics)

      Volume: 181

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Hyperfiniteness of Real-World Networks2019

    • Author(s)
      Yutaro Honda, Yoshitaka Inoue, Hiro Ito, Munehiko Sasajima, Junichi Teruyama, Yushi Uno
    • Journal Title

      Reviews of Socionetwork Strategies

      Volume: 13 Issue: 2 Pages: 123-141

    • DOI

      10.1007/s12626-019-00051-3

    • Related Report
      2019 Research-status Report
    • Peer Reviewed
  • [Journal Article] Reconfiguring Undirected Paths2019

    • Author(s)
      Erik D. Demaine, David Eppstein, Adam Hesterberg, Kshitij Jain, Anna Lubiw, Ryuhei Uehara, Yushi Uno
    • Journal Title

      Lecture Notes in Computer Science

      Volume: 11646 Pages: 353-365

    • DOI

      10.1007/978-3-030-24766-9_26

    • ISBN
      9783030247652, 9783030247669
    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Settlement fund circulation problem2019

    • Author(s)
      Hitoshi Hayakawa, Toshimasa Ishii, Hirotaka Ono and Yushi Uno
    • Journal Title

      Discrete Applied Mathematics

      Volume: 印刷中 Pages: 86-103

    • DOI

      10.1016/j.dam.2019.03.017

    • NAID

      120007126840

    • Related Report
      2019 Research-status Report
    • Peer Reviewed
  • [Journal Article] Parameterized edge Hamiltonicity2018

    • Author(s)
      M. Lampis, K. Makino, V. Mitsou and Y. Uno.
    • Journal Title

      Discrete Applied Mathematics

      Volume: 248 Pages: 68-78

    • DOI

      10.1016/j.dam.2017.04.045

    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Threes!, Fives, 1024!, and 2048 are hard2018

    • Author(s)
      S. Langerman and Yushi Uno
    • Journal Title

      Theoretical Computer Science

      Volume: 748 Pages: 7-17

    • DOI

      10.1016/j.tcs.2018.03.018

    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Swapping colored token on graphs2018

    • Author(s)
      K. Yamanaka, T. Horiyama, J. M. Keil, D. G. Kirkpatrick, Y. Otachi, T. Saitoh, R. Uehara and Y. Uno
    • Journal Title

      Theoretical Computer Science

      Volume: 729 Pages: 1-10

    • DOI

      10.1016/j.tcs.2018.03.016

    • NAID

      120005850327

    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Settlement fund circulation problem2017

    • Author(s)
      Hitoshi Hayakawa, Toshimasa Ishii, Hirotaka Ono and Yushi Uno
    • Journal Title

      Leibniz International Proceedings in Informatics

      Volume: 92

    • NAID

      120007126840

    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Sankaku-Tori: An old Western-Japanese game played on a point set2017

    • Author(s)
      Takashi Horiyama, Takashi Iizuka, Masashi Kiyomi, Yoshio Okamoto, Ryuhei Uehara, Takeaki Uno, Yushi Uno, Yukiko Yamauchi
    • Journal Title

      Journal of Information Processing

      Volume: 25 Pages: 708-715

    • NAID

      120005850326

    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Hanabi is NP-complete, even for cheaters who look at their cards2017

    • Author(s)
      Jean-Francois Baffier, Man-Kwun Chiu, Yago Diez, Matias Korman, Valia Mitsou, Andr´e van Renssen, Marcel Roeloffzen, Yushi Uno
    • Journal Title

      Theoretical Computer Science

      Volume: 675 Pages: 43-55

    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] Upper Clique Transversals in Graphs2023

    • Author(s)
      Martin Milanic, Yushi Uno
    • Organizer
      The 49th International Workshop on Graph-Theoretic Concepts in Computer Science
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Gourds: A Sliding-Block Puzzle with Turning2021

    • Author(s)
      宇野裕之
    • Organizer
      学術変革領域研究(B)組合せ遷移:公開シンポジウム
    • Related Report
      2020 Research-status Report
    • Invited
  • [Presentation] Linear-Time Recognition of Double-Threshold Graphs2020

    • Author(s)
      Yusuke Kobayashi, Yoshio Okamoto, Yota Otachi, Yushi Uno
    • Organizer
      The 46th International Workshop on Graph-Theoretic Concepts
    • Related Report
      2020 Research-status Report
    • Int'l Joint Research
  • [Presentation] Gourds: A Sliding-Block Puzzle with Turning2020

    • Author(s)
      Joep Hamersma, Marc J. van Kreveld, Yushi Uno, Tom C. van der Zanden
    • Organizer
      The 31st International Symposium on Algorithms and Computation
    • Related Report
      2020 Research-status Report
    • Int'l Joint Research
  • [Presentation] How efficiently can nets of polycubes pack a rectangle?2018

    • Author(s)
      E. D. Demaine, M. L. Demaine, R. Uehara, Y. Uno and A. Winslow
    • Organizer
      Japan Conference on Discrete and Computational Geometry
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research
  • [Presentation] Settlement fund circulation problem2017

    • Author(s)
      Hitoshi Hayakawa, Toshimasa Ishii, Hirotaka Ono and Yushi Uno
    • Organizer
      The 28th International Symposium on Algorithms and Computation
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Presentation] Towards Development of Practically Efficient Property Testing2017

    • Author(s)
      Munehiko Sasajima, Yutaro Honda, Yushi Uno, Hiro Ito and Naoki Katoh
    • Organizer
      The 3rd International Workshop on Innovative Algorithms for Big Data
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Presentation] 媒介中心性のグラフ分解を用いた効率的な計算および その実ネットワークへの適用2017

    • Author(s)
      伊野波竜矢, 定兼邦彦, 宇野裕之, 米林悠真
    • Organizer
      電子情報通信学会コンピュテーション研究会
    • Related Report
      2017 Research-status Report

URL: 

Published: 2017-04-28   Modified: 2025-01-30  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi