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

2018 Fiscal Year Annual Research Report

Theoretical Foundation of Innovative Data Analysis Based on Computational Geometry and Topology

Research Project

Project/Area Number 15K00009
Research InstitutionThe University of Electro-Communications

Principal Investigator

岡本 吉央  電気通信大学, 大学院情報理工学研究科, 教授 (00402660)

Project Period (FY) 2015-04-01 – 2019-03-31
Keywords離散幾何学 / 離散数学 / アルゴリズム理論
Outline of Annual Research Achievements

計算幾何学,アルゴリズム理論に関わる以下の成果を含む研究を行った.
(1) 新しい種類の施設配置問題に対して,それが最大独立点集合問題と深く関連することを解明し,また,特殊な場合には高速厳密アルゴリズムを開発した.
(2) 伸縮可能な棒を部材としてフレームワークを実現する問題に対して,その計算困難性を解明した.
(3) 制限された交差を許すグラフ描画問題に対して,用いる線分や曲線の数を抑える線形時間描画法を開発した.
(4) 直交多角形領域におけるリンク距離直径とリンク距離半径を多項式時間で計算するアルゴリズムを開発した.

  • Research Products

    (16 results)

All 2019 2018 Other

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

  • [Int'l Joint Research] サンクトペテルブルク大学(ロシア連邦)

    • Country Name
      RUSSIA FEDERATION
    • Counterpart Institution
      サンクトペテルブルク大学
  • [Int'l Joint Research] ブリュッセル自由大学(ベルギー)

    • Country Name
      BELGIUM
    • Counterpart Institution
      ブリュッセル自由大学
  • [Int'l Joint Research] ベルリン自由大学/チュービンゲン大学/ヴュルツブルク大学(ドイツ)

    • Country Name
      GERMANY
    • Counterpart Institution
      ベルリン自由大学/チュービンゲン大学/ヴュルツブルク大学
    • # of Other Institutions
      2
  • [Int'l Joint Research] タフツ大学(米国)

    • Country Name
      U.S.A.
    • Counterpart Institution
      タフツ大学
  • [Int'l Joint Research] シドニー大学(オーストラリア)

    • Country Name
      AUSTRALIA
    • Counterpart Institution
      シドニー大学
  • [Int'l Joint Research]

    • # of Other Countries
      3
  • [Journal Article] Exact Algorithms for the Max-Min Dispersion Problem2018

    • Author(s)
      Toshihiro Akagi, Tetsuya Araki, Takashi Horiyama, Shin-Ichi Nakano, Yoshio Okamoto, Yota Otachi, Toshiki Saitoh, Ryuhei Uehara, Takeaki Uno, Kunihiro Wasa
    • Journal Title

      Proceedings of 12th International Frontiers of Algorithmics Workshop (FAW 2018)

      Volume: --- Pages: 263-272

    • DOI

      10.1007/978-3-319-78455-7_20

    • Peer Reviewed
  • [Journal Article] Computational Complexity of Robot Arm Simulation Problems2018

    • Author(s)
      Tianfeng Feng, Takashi Horiyama, Yoshio Okamoto, Yota Otachi, Toshiki Saitoh, Takeaki Uno, Ryuhei Uehara
    • Journal Title

      Proceedings of 29th International Workshop on Combinational Algorithms (IWOCA 2018)

      Volume: --- Pages: 177-188

    • DOI

      10.1007/978-3-319-94667-2_15

    • Peer Reviewed
  • [Journal Article] Orthogonal and Smooth Orthogonal Layouts of 1-Planar Graphs with Low Edge Complexity2018

    • Author(s)
      Evmorfia Argyriou, Sabine Cornelsen, Henry Forster, Michael Kaufmann, Martin Nollenburg, Yoshio Okamoto, Chrysanthi Raftopoulou, and Alexander Wolff
    • Journal Title

      Proceedings of 26th International Symposium on Graph Drawing and Network Visualization (GD 2018)

      Volume: --- Pages: 509-523

    • DOI

      10.1007/978-3-030-04414-5_36

    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Rectilinear Link Diameter and Radius in a Rectilinear Polygonal Domain2018

    • Author(s)
      Elena Arseneva, Man-Kwun Chiu, Matias Korman, Aleksandar Markovic, Yoshio Okamoto, Aurelien Ooms, Andre van Renssen, Marcel Roeloffzen
    • Journal Title

      Proceedings of 29th International Symposium on Algorithms and Computation (ISAAC 2018)

      Volume: --- Pages: 58:1-58:12

    • DOI

      10.4230/LIPIcs.ISAAC.2018.58

    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] Mind the Mind with Synchronous Clocks2019

    • Author(s)
      岡本吉央
    • Organizer
      第14回組合せゲーム・パズル研究集会
  • [Presentation] Submodular Reassignment Problem for Reallocating Agents to Tasks with Synergy Effects2018

    • Author(s)
      Yoshio Okamoto
    • Organizer
      11th Combinatorial Algorithms Day
    • Int'l Joint Research / Invited
  • [Presentation] タイリングのはなし2018

    • Author(s)
      岡本吉央
    • Organizer
      基盤(S) 離散構造処理系プロジェクト「短期滞在セミナー週間 (SSSW) 2018.07」
  • [Presentation] 劣モジュラ再割当問題2018

    • Author(s)
      岡本吉央
    • Organizer
      本部SSOR 2018
  • [Presentation] Balanced Line Separators of Unit Disk Graphs2018

    • Author(s)
      Yoshio Okamoto
    • Organizer
      NWO-JSPS joint seminar: Computations on Networks with a Tree-Structure: From Theory to Practice
    • Int'l Joint Research
  • [Presentation] 幾何的最短路に関わる諸問題2018

    • Author(s)
      岡本吉央
    • Organizer
      第30回RAMPシンポジウム
    • Invited

URL: 

Published: 2019-12-27  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi