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2008 Fiscal Year Annual Research Report

クリフォード代数を用いた幾何データの類似関係可視化

Research Project

Project/Area Number 19700218
Research InstitutionNagoya University

Principal Investigator

橘 完太  Nagoya University, 大学院・工学研究科, COE特任准教授 (20402539)

KeywordsClifford代数 / geometric algebra / 四元数 / 自己組織化マップ / 最適学習率 / 混合正規分布モデル / データマイニング / 気象データ
Research Abstract

本研究の目的は、幾何対象に関する計算技術向上である。近年の計算機性能や計測技術の発達に伴い、シミュレーションや観測によって多自由度で大規模なデータが入手可能となっている。特に、幾何的な性質を持つ対象について対象間の類似関係を理解したいという要望が存在するが、そのための効率的なアルゴリズムは、いまだ実現されていない。そこで、大規模データに適用可能とした自己組織化マップなどの学習機械について、学習モデルに用いる代数をクリフォード代数へと拡張する。研究計画2年目である本年度は、COEが分野横断的であるという特性を活かし、計算化学・気象学の研究者からデータ提供を受けて以下の共同研究を展開した。1. クリフォード代数を用いた生体分子立体構造の類似度定義により、自己組織化マップ上での生体運動を可視化。2. クリフォード代数を用いて気象データから台風など特異現象を検出する手法の提案。その結果、主に以下の成果を得た。学術論文6件(うち1件は印刷中、2件は速報性のあるもの)、著書の分担執筆1件、プロシーディングス編集1件、国際会議発表11件である。特に、共同研究を行った気象学の研究者は、共著の国際会議発表が高く評価され、IEEE Computational Intelligence Society Young Researcher Awardを受けた。

  • Research Products

    (26 results)

All 2009 2008

All Journal Article (6 results) (of which Peer Reviewed: 6 results) Presentation (19 results) Book (1 results)

  • [Journal Article] Visualization of Huge Climate Data with High-Speed Spherical Self-Organizing Map2009

    • Author(s)
      Kanta Tachibana, Norihiko Sugimoto, Hideo Shiogama, and Toru Nozawa
    • Journal Title

      Journal of Advanced Computational Intelligence and Intelligent Informatics 13(3)(印刷中)

    • Peer Reviewed
  • [Journal Article] High speed method of detecting vortex without empirical conditions -application to risk-assessment of tropical cyclone-2009

    • Author(s)
      Norihiko Sugimoto, Minh Tuan Pham, Kanta Tachibana, Tomohiro Yoshikawa, and Takeshi Furuhashi
    • Journal Title

      Theoretical and Applied Mechanics Japan 57

      Pages: 297-307

    • Peer Reviewed
  • [Journal Article] Carrier Method for the General Evaluation and Control of Pose, Molecular Conformation, Tracking, and the Like2009

    • Author(s)
      Eckhard Hitzer, Kanta Tachibana, Sven Buchholz and Isseki Yu
    • Journal Title

      Advances in Applied Clifford Algebras (Published online)

    • Peer Reviewed
  • [Journal Article] High speed non-empirical hurricane identification in huge climatology data2008

    • Author(s)
      Norihiko Sugimoto, Minh Tuan Pham, Kanta Tachibana, Tomohiro Yoshikawa, and Takeshi Furuhashi
    • Journal Title

      Hurricanes and Climate Change

      Pages: 251-263

    • Peer Reviewed
  • [Journal Article] 幾何データからのGeometric Algebraを用いた特徴抽出2008

    • Author(s)
      Pham Minh Tuan, 橘完太, Eckhard M. S. Hitzer, SvenBuchholz, 吉川大弘, 古橋武
    • Journal Title

      統計数理 56(2)

      Pages: 185-198

    • Peer Reviewed
  • [Journal Article] A first attempt to apply high speed spherical self-organizing map to hugeclimate datasets2008

    • Author(s)
      Norihiko Sugimoto and Kanta Tachibana
    • Journal Title

      Science Online Letters on the Atmosphere 4

      Pages: 41-44

    • Peer Reviewed
  • [Presentation] Robust learning and inference of geometric data2008

    • Author(s)
      Kanta Tachibana, Minh Tuan Pham, Tomohiro Yoshikawa, and Takeshi Furuhashi
    • Organizer
      International Symposium on Frontiers of Computational Science
    • Place of Presentation
      Nagoya, Japan
    • Year and Date
      20081127-29
  • [Presentation] Geometric algebraによる特徴抽出を用いたアンケートデータからの購入希望度推定2008

    • Author(s)
      Pham Minh Tuan,橘完太, 吉川大弘, 古橋武
    • Organizer
      計測自動制御学会システム・情報部門学術講演会2008
    • Place of Presentation
      イーグレひめじ・姫路市国際交流センター(兵庫県姫路市)
    • Year and Date
      20081126-28
  • [Presentation] Geometric algebraを導入した特徴抽出による半教師学習2008

    • Author(s)
      Pham Minh Tuan,橘完太, 吉川大弘, 古橋武
    • Organizer
      第18回インテリジェントシステムシンポジウム
    • Place of Presentation
      広島県情報プラザ(広島県広島市)
    • Year and Date
      20081023-24
  • [Presentation] Robust geometric feature extraction and classification2008

    • Author(s)
      Minh Tuan Pham, Kanta Tachibana, Eckhard Hitzer, Sven Buchholz, Tomohiro Yoshikawa, and Takeshi Furuhashi
    • Organizer
      International Symposium on Advanced Mechanical and Power Engineering (ISAMPE 2008)
    • Place of Presentation
      Busan, Korea
    • Year and Date
      20081009-12
  • [Presentation] Climate variability visualized by high speed spherical self-organizing map2008

    • Author(s)
      Norihiko Sugimoto, Kanta Tachibana, Hideo Shiogama, and Toru Nozawa
    • Organizer
      8th EMS Annual Meeting, 7th European Conference on Applied Climatology (EMS 2008)
    • Place of Presentation
      Amsterdam, Netherlands
    • Year and Date
      20080929-1003
  • [Presentation] High speed non-empirical cyclone detection method2008

    • Author(s)
      Norihiko Sugimoto, Minh Tuan Pham, Kanta Tachibana, Ryo Mizuta, Tomohiro Yoshikawa, and Takeshi Furuhashi
    • Organizer
      8th EMS Annual Meeting, 7th European Conference on Applied Climatology (EMS 2008)
    • Place of Presentation
      Amsterdam, Netherlands
    • Year and Date
      20080929-1003
  • [Presentation] Feature extraction with geometric algebra for semi-supervised learning of time-series spatial vector2008

    • Author(s)
      Minh Tuan Pham, Kanta Tachibana, Tomohiro Yoshikawa, and Takeshi Furuhashi
    • Organizer
      The Third International Workshop on Data-Mining and Statistical Science (DMSS 2008)
    • Place of Presentation
      Tokyo, Japan
    • Year and Date
      20080925-26
  • [Presentation] Application of high speed spherical self-organizing map to climate research2008

    • Author(s)
      Norihiko Sugimoto, Kanta Tachibana, Hideo Shiogama, and Toru Nozawa
    • Organizer
      Joint 4 th International Conference on Soft Computing and Intelligent * Systems and 9th International Symposium on Advanced Intelligent Systems (SCIS&ISIS 2008)
    • Place of Presentation
      Nagoya, Japan
    • Year and Date
      20080917-21
  • [Presentation] Coordinate independent update formulas for versor Clifford neurons2008

    • Author(s)
      Sven Buchholz, Eckhard Hitzer, and Kanta Tachibana
    • Organizer
      Joint 4 th International Conference on Soft Computing and Intelligent Systems and 9th International Symposium on Advanced Intelligent Systems (SCIS&ISIS 2008)
    • Place of Presentation
      Nagoya, Japan
    • Year and Date
      20080917-21
  • [Presentation] Clustering of questionnaire based on features extracted by geometric algebra2008

    • Author(s)
      Minh Tuan Pham, Kanta Tachibana, Eckhard Hitzer, Tomohiro Yoshikawa, and Takeshi Furuhashi
    • Organizer
      Joint 4 th International Conference on Soft Computing and Intelligent Systems and 9th International Symposium on Advanced Intelligent Systems (SCIS&ISIS 2008)
    • Place of Presentation
      Nagoya, Japan
    • Year and Date
      20080917-21
  • [Presentation] アンケートデータのクラスタリングへのGeometric Algebraの適用2008

    • Author(s)
      Pham Minh Tuan, 橘完本, 吉川大弘, 古橋武
    • Organizer
      第24回ファジィシステムシンポジウム
    • Place of Presentation
      阪南大学(大阪府松原市)
    • Year and Date
      20080903-05
  • [Presentation] Classification and clustering of spatial patterns with geometric algebra2008

    • Author(s)
      Minh Tuan Pham, Kanta Tachibana, Eckhard M. S. Hitzer, Tomohiro Yoshikawa, and Takeshi Furuhashi
    • Organizer
      3rd International Conference on Applied Geometric Algebras in Computer Science and Engineering (AGACSE 2008)
    • Place of Presentation
      Grimma, Germany
    • Year and Date
      20080817-19
  • [Presentation] GA neural networks2008

    • Author(s)
      Kanta Tachibana and Eckhard M. S. Hitzer
    • Organizer
      A tutorial lecture. 3 rd International Conference on Applied Geometric Algebras in Computer Science and Engineering (AGACSE 2008)
    • Place of Presentation
      Grimina, Germany
    • Year and Date
      20080817-19
  • [Presentation] 経験的条件を用いない高速な渦(台風)抽出手法の提案2008

    • Author(s)
      杉本憲彦, Pham Minh Tuan, 橘完太, 吉川大弘, 古橋武
    • Organizer
      第57回理論応用力学講演会
    • Place of Presentation
      東京
    • Year and Date
      20080610-12
  • [Presentation] Feature extractions with geometric algebra for classification of objects2008

    • Author(s)
      Minh Tuan Pham, Kanta Tachibana, Eckhard M. S. Hitzer, Sven Buchholz, Tomohiro Yoshikawa, and Takeshi Furuhashi
    • Organizer
      International Joint Conference on Neural Networks (IJCNN 2008)
    • Place of Presentation
      Hong Kong, China
    • Year and Date
      20080601-06
  • [Presentation] Geometric algebra feature extraction and classification2008

    • Author(s)
      Minh Tuan Pham, Kanta Tachibana, Eckhard M. S. Hitzer, Sven Buchholz, Tomohiro Yoshikawa, and Takeshi Furuhashi
    • Organizer
      In 8th International Conference on Clifford Algebras (ICCA 8)
    • Place of Presentation
      Campinas, Brazil
    • Year and Date
      20080526-30
  • [Presentation] ランダム行列によるノイズ除去の統計的仮説検定とその共ボラティリティへの適用2008

    • Author(s)
      橘完太, 森本孝之
    • Organizer
      第73回MPS研究会
    • Place of Presentation
      沖縄科学技術研究基盤整備機構(沖縄県恩納村)
    • Year and Date
      20080305-06
  • [Presentation] 曲率強調流線による高速な渦(台風)抽出手法2008

    • Author(s)
      杉本憲彦, Pham Minh Tuan, 橘完太, 水田亮, 吉川大弘, 古橋武
    • Organizer
      日本流体力学会年会2008
    • Place of Presentation
      神戸大学, 神戸
    • Year and Date
      2008-09-06
  • [Presentation] Extraction of geometric features from objects for machine learning2008

    • Author(s)
      Kanta Tachibana
    • Organizer
      A colloquium. Center of Research Excellence fm Computer Graphics, Technische Universitat Darmstadt
    • Place of Presentation
      Darmstadt, Germany
    • Year and Date
      2008-08-20
  • [Book] 自己組織化マップとそのツール2008

    • Author(s)
      橘完太, 杉本憲彦他, 大北正昭, 徳高平蔵, 藤村喜久郎, 権田英功(編)
    • Total Pages
      226
    • Publisher
      シュプリンガー・ジャパン, 東京

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Published: 2010-06-11   Modified: 2016-04-21  

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