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2010 Fiscal Year Annual Research Report

離散的手法とカーネル法の融合による構造設計法

Research Project

Project/Area Number 22240009
Research InstitutionKyoto University

Principal Investigator

阿久津 達也  京都大学, 化学研究所, 教授 (90261859)

Co-Investigator(Kenkyū-buntansha) 川端 猛夫  京都大学, 化学研究所, 教授 (50214680)
林田 守広  京都大学, 化学研究所, 助教 (40402929)
永持 仁  京都大学, 情報学研究科, 教授 (70202231)
Keywords特徴ベクトル / グラフ理論 / 立体異性体 / 化学構造 / 外平面的グラフ / 木構造 / カーネル法 / 構造列挙
Research Abstract

今年度は以下を中心に研究を行った。
(1)立体異性体を区別できるカーネル関数の開発
以前より立体異性体を区別できるカーネル関数を開発してきたが、その成果を論文としてまとめた。
(2)外平面的グラフ構造を持つ化学構造に対する立体異性体の列挙
木構造を持つ化学構造に対する立体異性体の列挙アルゴリズムを論文としてまとめるとともに、外平面的グラフ構造を持つ化学構造に対するアルゴリズムの詳細をつめ完成させた。
(3)特徴ベクトルの上下限を与えた場合の木状化学構造の列挙アルゴリズム
これまでの定式化では制約が強く解が存在しない場合が数多くあるため、特徴ベクトルの各要素の上下限を与えるというより弱い制約のもとで、その制約を満たす木状化学構造を列挙するアルゴリズムを開発した。計算機実験の結果、予想していたものより大きな化学構造に対応できることが示唆された。
(4)WEBサーバーEnuMolへの機能追加
以前より開発してきた化学構造の数え上げを行うWEBサーバーの詳細な機能について改良を図るとともに、木状化合物の数え上げ機能を追加した。
この他にもRNA二次構造予測および木状構造からのパターン抽出法などの研究を行った。ただし、計画していた課題のうち、スコア関数の学習および最適化法、核となる構造を与えたもとでの構造の推定・列挙については十分に研究を進展させることができなかったため、23年度に再び取り組むことにした。

  • Research Products

    (21 results)

All 2011 2010 Other

All Journal Article (8 results) (of which Peer Reviewed: 8 results) Presentation (12 results) Remarks (1 results)

  • [Journal Article] Efficient enumeration of stereoisomers of tree structured molecules using dynamic programming2011

    • Author(s)
      T.Imada, S.Ota, H.Nagamochi, T.Akutsu
    • Journal Title

      Journal of Mathematical Chemistry

      Volume: 49 Pages: 910-970

    • Peer Reviewed
  • [Journal Article] Generation of symmetric and asymmetric biconnected rooted triangulated planar graphs2011

    • Author(s)
      B.Zhuang, H.Nagamochi
    • Journal Title

      IEICE Transactions

      Volume: 94-D Pages: 200-210

    • Peer Reviewed
  • [Journal Article] Generation of symmetric and asymmetric biconnected rooted outerplanar graphs2011

    • Author(s)
      B.Zhuang, H.Nagamochi
    • Journal Title

      IEICE Transactions

      Volume: 94-D Pages: 211-219

    • Peer Reviewed
  • [Journal Article] Compound analysis via graph kernels incorporating chirality2010

    • Author(s)
      J.B.Brown, T.Urata, T.Tamura, M.A.Arai, T.Kawabata, T.Akutsu
    • Journal Title

      Journal of Bioinformatics and Computational Biology

      Volume: 8(Suppl.1) Pages: 63-81

    • Peer Reviewed
  • [Journal Article] A bisection algorithm for grammar-based compression of ordered trees2010

    • Author(s)
      T.Akutsu
    • Journal Title

      Information Processing Letters

      Volume: 110 Pages: 815-820

    • Peer Reviewed
  • [Journal Article] RactIP : fast and accurate prediction of RNA-RNA interaction using integer programming2010

    • Author(s)
      Y.Kato, K.Sato, M.Hamada, Y.Watanabe, K.Asai, T.Akutsu
    • Journal Title

      Bioinformatics

      Volume: 26 Pages: i460-i466

    • Peer Reviewed
  • [Journal Article] Comparing biological networks via graph compression2010

    • Author(s)
      M.Hayashida, T.Akutsu
    • Journal Title

      BMC Systems Biology

      Volume: 4(Suppl.2) Pages: S13 (11)

    • Peer Reviewed
  • [Journal Article] Integer programming-based method for grammar-based tree compression and its application to pattern extraction of glycan tree structures2010

    • Author(s)
      Y.Zhao, M.Hayashida, T.Akutsu
    • Journal Title

      BMC Bioinformatics

      Volume: 11(Suppl.11) Pages: S4 (11)

    • Peer Reviewed
  • [Presentation] 上下限付きパス頻度に基づく木状化合物の列挙2011

    • Author(s)
      清水雅章, 永持仁, 阿久津達也
    • Organizer
      情報処理学会バイオ情報学研究会
    • Place of Presentation
      京都大学化学研究所
    • Year and Date
      2011-03-10
  • [Presentation] Listing triconnected rooted plane graphs2010

    • Author(s)
      B.Zhuang, H.Nagamochi
    • Organizer
      Combinatorial Optimization and Applications-4th International Conference, COCOA 2010
    • Place of Presentation
      Kailua-Kona, HI, USA
    • Year and Date
      2010-12-18
  • [Presentation] Compound analysis via graph kernels incorporating chirality2010

    • Author(s)
      J.B.Brown, T.Urata, T.Tamura, M.A.Arai, T.Kawabata, T.Akutsu
    • Organizer
      The 21st International Conference on Genome Informatics
    • Place of Presentation
      The First World Hotel, Hangzhou, China
    • Year and Date
      2010-12-16
  • [Presentation] Integer programming-based method for grammar-based tree compression and its application to pattern extraction of glycantree structures2010

    • Author(s)
      Y.Zhao, M.Hayashida, T.Akutsu
    • Organizer
      The 21st International Conference on Genome Informatics
    • Place of Presentation
      The First World Hotel, Hangzhou, China
    • Year and Date
      2010-12-16
  • [Presentation] Generating trees on multisets2010

    • Author(s)
      B.Zhuang, H.Nagamochi
    • Organizer
      Algorithms and Computation-21st International Symposium, ISAAC 2010
    • Place of Presentation
      Jeju Island, Korea
    • Year and Date
      2010-12-15
  • [Presentation] Data compression-based approaches to analysis of biological networks2010

    • Author(s)
      T.Akutsu
    • Organizer
      The 4th International Conference on Computational Systems Biology
    • Place of Presentation
      Suzhou University, Suzhou, China(招待講演)
    • Year and Date
      2010-09-09
  • [Presentation] Constant time generation of trees with degree bounds2010

    • Author(s)
      B.Zhuang, H.Nagamochi
    • Organizer
      the 9th International Symposium on Operations Research and Its Applications (ISORA 2010)
    • Place of Presentation
      Chengdu, China
    • Year and Date
      2010-08-19
  • [Presentation] Constant time generation of biconnected rooted plane graphs2010

    • Author(s)
      B.Zhuang, H.Nagamochi
    • Organizer
      Frontiers in Algorithmics, 4th International Workshop, FAW 2010
    • Place of Presentation
      Wuhan, China
    • Year and Date
      2010-08-11
  • [Presentation] Mathematical models and computational methods for analysis of structures of biological networks2010

    • Author(s)
      T.Akutsu
    • Organizer
      The 2nd International Conference on Advanced Science and Technology
    • Place of Presentation
      Seagaia, Miyazaki, Japan(招待講演)
    • Year and Date
      2010-06-25
  • [Presentation] Generating internally triconnected rooted plane graphs2010

    • Author(s)
      B.Zhuang, H.Nagamochi
    • Organizer
      Theory and Applications of Models of Computation, 7th Annual Conference, TAMC 2010
    • Place of Presentation
      Prague, Czech Republic
    • Year and Date
      2010-06-07
  • [Presentation] Enumerating rooted graphs with reflectional block structures2010

    • Author(s)
      B.Zhuang, H.Nagamochi
    • Organizer
      Algorithms and Complexity, 7th International Conference, CIAC 2010
    • Place of Presentation
      Rome, Italy
    • Year and Date
      2010-05-26
  • [Presentation] Efficient generation of symmetric and asymmetric biconnected rooted outerplanar graphs2010

    • Author(s)
      B.Zhuang, H.Nagamochi
    • Organizer
      The 3rd Annual Meeting of Asian Association for Algorithms and Computation (AAAC)
    • Place of Presentation
      POSTECH, Pohang, Korea
    • Year and Date
      2010-04-17
  • [Remarks]

    • URL

      http://sunflower.kuicr.kyoto-u.ac.jp/tools/enumol/

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Published: 2012-07-19  

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