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2007 Fiscal Year Annual Research Report

連続と離散の融合によるロバストアルゴリズム構築

Research Project

Project/Area Number 16092204
Research InstitutionThe University of Tokyo

Principal Investigator

杉原 厚吉  The University of Tokyo, 大学院・情報理工学系研究科, 教授 (40144117)

Co-Investigator(Kenkyū-buntansha) 室田 一雄  東京大学, 大学院・情報理工学系研究科, 教授 (50134466)
今井 浩  東京大学, 大学院・情報理工学系研究科, 教授 (80183010)
松井 知己  中央大学, 理工学部, 教授 (30270888)
岩田 覚  京都大学, 数理解析研究所, 准教授 (00263161)
大石 泰章  南山大学, 数理情報学部, 准教授 (80272392)
Keywords厳密計算法 / 離散凸解析 / カット凸多面体 / パーフェクトサンプリング / 符号可解性 / ロバスト線形不等式 / 長方形詰込み問題 / ロバスト構造設計
Research Abstract

従来は連続計算の分野と離散計算の分野に分かれてそれぞれ独立になされてきたアルゴリズム研究の知見を融合し,両者の手法の長所を補完し合うことによって,諸計算のロバスト性を確保するための計算原理を開拓することが本研究の目的であった.本年度もこの目的に沿って研究を行い,次のような成果を得た.幾何計算の分野では,2次元および3次元の球ボロノイ図のロバストな計算法を開発した.これは,位相構造をいつも正しく判定できる高精度計算を用いるもので,必要な精度をもとの入力データの2d+4倍に置き換えることに成功した.また,流れの中でのボートの最短経路を求めるロバスト解法を高次元と曲面上とへ拡張した.さらに長方形詰込み問題の実用的解法を構成するとともに,一般の形の図形詰込み結果に基づいてハードメタルを切り取るためのカッターパス生成法を構成した.離散凸解析の分野では,定パリティジャンプシステム上のM凸関数が,合成積やグラフによる変換によってM凸性を保存することを示した.量子計算の分野では,カット凸多面体とベル不等式の関係を明らかにし,量子状態を記述するより強力な不等式を得た.サンプリングの分野では,マルコフ連鎖を用いたモンテカルロ法のためのパーフェクトサンプリング方法を開発した.組合せ最適化の分野では,数理計画問題の符号情報のみから最適解の性質を調べる方法を開発した.制御計算の分野では,制御対象パラメータのとり得る区間の中で常に安定性が保証されるロバスト制御法を,ロバスト線形不等式を条件とする半正定値問題に帰着させて解く方法を与えた.構造設計の分野では,不確定な外力に対する構造物の解析法を開発した.これらの諸成果を通じて,「連続計算における知見と離散計算における知見の交流によって,計算の安定化をはかることができる」というロバストな計算を確保するための一つの原理の有効性を確認することができた.

  • Research Products

    (39 results)

All 2008 2007

All Journal Article (20 results) (of which Peer Reviewed: 20 results) Presentation (15 results) Book (4 results)

  • [Journal Article] Submodular function minimization2008

    • Author(s)
      S. Iwata
    • Journal Title

      Math. Programming 112

      Pages: 45-64

    • Peer Reviewed
  • [Journal Article] Stable marker-particle method for the Voronoi diagram in a flow field2007

    • Author(s)
      Tetsushi Nishida, Kokichi Sugihara, Masato Kimura
    • Journal Title

      Journal of Computational and Applied Mathematics 202

      Pages: 377-391

    • Peer Reviewed
  • [Journal Article] Sliver-free perturbation for the Delaunay tetrahedrization2007

    • Author(s)
      Kokichi Sugihara
    • Journal Title

      Computer-Aided Design 39

      Pages: 87-94

    • Peer Reviewed
  • [Journal Article] 滑らかな境界を表現する等方的四面体メッシュ生成法2007

    • Author(s)
      長井超慧, 杉原厚吉
    • Journal Title

      日本応用数理学会論文誌 17・3

      Pages: 347-361

    • Peer Reviewed
  • [Journal Article] 頂点追加による2次元DistMeshの等方性向上2007

    • Author(s)
      長井超慧, 杉原厚吉, 鈴木宏正
    • Journal Title

      日本応用数理学会論文誌 17・3

      Pages: 195-217

    • Peer Reviewed
  • [Journal Article] Operations on M-convex functions on jump systems2007

    • Author(s)
      Y. Kobayashi, K. Murota, K. Tanaka
    • Journal Title

      SIAM Journal on Discrete Mathematics 21・1

      Pages: 107-129

    • Peer Reviewed
  • [Journal Article] 連続/離散ハイブリッドM〓凸関数に関する一考察2007

    • Author(s)
      森口聡子, 原辰次, 室田一雄
    • Journal Title

      システム制御情報学会論文誌 20・2

      Pages: 84-86

    • Peer Reviewed
  • [Journal Article] The Home-away assignment problems and break minimization/maximization problems in sports scheduling2007

    • Author(s)
      Ayami Suzuka, Ryuhei Miyashiro, Akiko Yoshise, Tomomi Matsui
    • Journal Title

      Pacific Journal of Optimization 3・1

      Pages: 113-133

    • Peer Reviewed
  • [Journal Article] Constructive algorithms for the constant distance traveling tournament problem2007

    • Author(s)
      Nobutomo Fujiwara, Shinji Imahori Tomomi Matsui, Ryuhei Miyashiro
    • Journal Title

      Lecture Notes in Computer Science 3867

      Pages: 135-146

    • Peer Reviewed
  • [Journal Article] Combinatorial analysis of singular matrix pencils2007

    • Author(s)
      S. Iwata, R. Shimizu
    • Journal Title

      SIAM J. Matrix Anal. Appl. 29

      Pages: 245-259

    • Peer Reviewed
  • [Journal Article] Computing inertia from sign patterns2007

    • Author(s)
      N. Kakimura, S. Iwata
    • Journal Title

      Math. Programming 10

      Pages: 229-244

    • Peer Reviewed
  • [Journal Article] Linking systems and matroid pencils2007

    • Author(s)
      S. Iwata
    • Journal Title

      J. Oper. Res. Soc. Jaoan 50

      Pages: 315-327

    • Peer Reviewed
  • [Journal Article] 疎性の利用によるロバスト半正定値計画法の効率化2007

    • Author(s)
      猪阪・大石
    • Journal Title

      計測自動制御学会論文集 43・2

      Pages: 93-101

    • Peer Reviewed
  • [Journal Article] Guaranteed cost regulator design: a probabilistic solution and a randomized algorithm2007

    • Author(s)
      Y. Fujisaki, Y. Oishi
    • Journal Title

      Automatica 43・2

      Pages: 317-324

    • Peer Reviewed
  • [Journal Article] Polynomial-time algorithms for probabilistic solutions of parameter-dependent linear matrix inequalities2007

    • Author(s)
      Y. Oishi
    • Journal Title

      Automatica 43・3

      Pages: 538-545

    • Peer Reviewed
  • [Journal Article] Worst-case plastic limit analysis of trusses under uncertain loads viamixed 0-1 programming2007

    • Author(s)
      Y. Kanno, I. Takewaki
    • Journal Title

      Journal of Mechanics of Materials and Structures 2

      Pages: 245-273

    • Peer Reviewed
  • [Journal Article] Ellipsoidal bounds for static response of framed structures against interactive uncertainties2007

    • Author(s)
      Y. Kanno, I. Takewaki
    • Journal Title

      Interaction and Multiscale Mechanics: an International Journal 1

      Pages: 103-121

    • Peer Reviewed
  • [Journal Article] 流れの中の航行シミュレーションと最適経路の探索2007

    • Author(s)
      西田 徹志
    • Journal Title

      シミュレーション 26・2

      Pages: 10-14

    • Peer Reviewed
  • [Journal Article] Constructive Algorithms for the Constant Distance Traveling Tournament Problem.2007

    • Author(s)
      N. Fujiwara, S. Imahori, T. Matsui. R. Miyashiro
    • Journal Title

      Lecture Notes in Computer Science 3867

      Pages: 135-146

    • Peer Reviewed
  • [Journal Article] フルートの運指最適化と逆最適化を用いたパラメータチューニング2007

    • Author(s)
      澤井賢一, 黒木裕介, 松井知己
    • Journal Title

      オペレーションズ・リサーチ 53・1

      Pages: 39-46

    • Peer Reviewed
  • [Presentation] Discrete Voronoi diagrams on surface triangulations and a sampling condition for topological guarantee2008

    • Author(s)
      Masaki Moriguchi, Kokichi Sugihara
    • Organizer
      24th European Workshop on Computational Geometry
    • Place of Presentation
      Nancy, France
    • Year and Date
      20080318-20
  • [Presentation] Reslizability of solids from three silhouettes2008

    • Author(s)
      Tomohiro Ohgami, Kokichi Sugihara
    • Organizer
      24th European Workshop on Computational Geometry
    • Place of Presentation
      Nancy, France
    • Year and Date
      20080318-20
  • [Presentation] Ellipsoidal bounds for uncertainty analysis of structures by using semidefinite programming2007

    • Author(s)
      Y. Kanno, I. Takewaki
    • Organizer
      The 7th International Conference on Optimization: Techniques and Applications
    • Place of Presentation
      神戸
    • Year and Date
      20071212-15
  • [Presentation] Asymptotic exactness of parameter-dependent Lyapunov functions: an errorbound and exactness verification2007

    • Author(s)
      Y. Oishi
    • Organizer
      Proceedings of the 46th IEEE Conference on Decision and Control
    • Place of Presentation
      New Orleans, USA
    • Year and Date
      20071212-14
  • [Presentation] Confidence bounds for static response of braced frames with structural and load uncertainties2007

    • Author(s)
      Y. Kanno, I. Takewaki
    • Organizer
      The 3rd Asian-Pacific Congress on Computational Mechanics
    • Place of Presentation
      京都
    • Year and Date
      20071203-06
  • [Presentation] Combination of interior-point method and semismooth Newton method for solving frictionless contact problems2007

    • Author(s)
      T. Miyamura, Y. Kanno, M. Ohsaki
    • Organizer
      The 3rd Asian-Pacific Congress on Computational Mechanics
    • Place of Presentation
      京都
    • Year and Date
      20071203-06
  • [Presentation] Stable computation of the optimal path for a boat on a water stream and its applications2007

    • Author(s)
      Kokichi Sugihara, Tetsushi Nishida
    • Organizer
      8th Hellenic-European Conference on Computer Mathematics and Its Applications
    • Place of Presentation
      Athens, Greek
    • Year and Date
      20070920-22
  • [Presentation] Spatial realization of Escher's impossible world2007

    • Author(s)
      Kokichi Sugihara
    • Organizer
      8th Hellenic-European Conference on Computer Mathematics and Its Applications
    • Place of Presentation
      Athens, Greek
    • Year and Date
      20070920-22
  • [Presentation] Restricted edge contractions in triangulations of the sphere with boundary2007

    • Author(s)
      Masaki Moriguchi, Kokichi Sugihara
    • Organizer
      The 19th Canadian Conference on Computational Geometry
    • Place of Presentation
      Ottawa, Canada
    • Year and Date
      20070820-22
  • [Presentation] Exploiting sparsity in the matrix-dilation approach to robust semidefinite programming2007

    • Author(s)
      Y. Oishi, Y. Isaka
    • Organizer
      Proceedings of the 2007 American Control Conference
    • Place of Presentation
      New York, USA
    • Year and Date
      20070711-13
  • [Presentation] Artistic pattern generation by a model of territory competing2007

    • Author(s)
      Kokichi Sugihara
    • Organizer
      Proceedings of the 4th International Symposium on Voronoi Diagrams in Science and Engineering
    • Place of Presentation
      Pontypridd, Wales, UK
    • Year and Date
      20070709-11
  • [Presentation] Direct Diffusion Method for the Construction of Generalized Voronoi Diagrams2007

    • Author(s)
      T. Nishida, S. Ono, K. Sugihara
    • Organizer
      Proceedings of the 4th International Symposium on Voronoi Diagrams in Science and Engineering
    • Place of Presentation
      Pontypridd, Wales, UK
    • Year and Date
      20070709-11
  • [Presentation] Maximization of minimal eigenvalue of structures by using sequential semidefinite programming2007

    • Author(s)
      Y. Kanno, M. Ohsaki
    • Organizer
      The 7th World Congress of Structural and Multidisciplinary Optimization
    • Place of Presentation
      Seoul, Korea
    • Year and Date
      20070500
  • [Presentation] Global optimization algorithm for worst-case limit analysis of trusses under load uncertainties2007

    • Author(s)
      Y. Kanno, I. Takewaki
    • Organizer
      The 4th International Conference on Computational Methods
    • Place of Presentation
      Geneva, Switzerland
    • Year and Date
      20070420-22
  • [Presentation] The independent even factor problem2007

    • Author(s)
      S. Iwata, K. Takazawa
    • Organizer
      Proceedings of the 18th Annual ACM-SIAM Symposium on Discrete Algorithms (SODA)
    • Place of Presentation
      New Orleans, USA
    • Year and Date
      20070107-09
  • [Book] Structural Design Optimization Considering Uncertainties(分担執筆)2008

    • Author(s)
      Y. Kanno and I. Takewaki
    • Total Pages
      656
    • Publisher
      Taylor and Francis Publishers
  • [Book] 離散凸解析の考えかた-最適化における離散と連続の数理2007

    • Author(s)
      室田一雄
    • Total Pages
      264
    • Publisher
      共立出版
  • [Book] Optimization of Structural and Mechanical Systems(分担執筆)2007

    • Author(s)
      M. Ohsaki and Y. Kanno
    • Total Pages
      595
    • Publisher
      World Scientific
  • [Book] Handbook of Approximation Algorithms and Metaheuristics(分担執筆)2007

    • Author(s)
      S. Imahori, M. Yagiura, H. Nagamochi
    • Total Pages
      1432
    • Publisher
      Chapman & Hall/CRC in the Computer & Information Science Series

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Published: 2010-02-04   Modified: 2016-04-21  

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