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Yamakawa, Yuya

Graduate School of Informatics, Department of Informatics Assistant Professor

Yamakawa, Yuya
list
    Last Updated :2024/03/20

    Basic Information

    Faculty

    • 工学部

    Academic Degree

    • 修士(理学)(東京理科大学)
    • 博士(情報学)(京都大学)

    ID,URL

    researchmap URL

    list
      Last Updated :2024/03/20

      Research

      Research Interests

      • 数理計画法
      • 非線形最適化
      • 連続最適化
      • 最適化理論

      Research Areas

      • Informatics, Mathematical informatics
      • Natural sciences, Applied mathematics and statistics
      • Natural sciences, Basic mathematics

      Papers

      • Convergence properties of Levenberg–Marquardt methods with generalized regularization terms
        Shumpei Ariizumi; Yuya Yamakawa; Nobuo Yamashita
        Applied Mathematics and Computation, 03 Oct. 2023, Peer-reviewed
      • An equivalent nonlinear optimization model with triangular low-rank factorization for semidefinite programs
        Yuya Yamakawa; Tetsuya Ikegami; Ellen H. Fukuda; Nobuo Yamashita
        Optimization Methods and Software, 10 Jul. 2023, Peer-reviewed
      • A Stabilized Sequential Quadratic Programming Method for Optimization Problems in Function Spaces
        Yuya Yamakawa
        Numerical Functional Analysis and Optimization, 27 Apr. 2023, Peer-reviewed, Lead author
      • A revised sequential quadratic semidefinite programming method for nonlinear semidefinite optimization
        Kosuke Okabe; Yuya Yamakawa; Ellen Hidemi Fukuda
        Journal of Industrial and Management Optimization, Mar. 2023, Peer-reviewed
      • Distributionally robust expected residual minimization for stochastic variational inequality problems
        Atsushi Hori; Yuya Yamakawa; Nobuo Yamashita
        Optimization Methods and Software, 06 Feb. 2023, Peer-reviewed
      • A stabilized sequential quadratic semidefinite programming method for degenerate nonlinear semidefinite programs
        Yuya Yamakawa; Takayuki Okuno
        Computational Optimization and Applications, 16 Sep. 2022, Peer-reviewed, Lead author
      • Sequential optimality conditions for nonlinear optimization on Riemannian manifolds and a globally convergent augmented Lagrangian method
        Yuya Yamakawa; Hiroyuki Sato
        Computational Optimization and Applications, 21 Jan. 2022, Peer-reviewed, Lead author
      • A block coordinate descent method for a maximum likelihood estimation problems of mixture distributions
        Yuya Yamakawa; Nobuo Yamashita
        Pacific Journal of Optimization, Oct. 2015, Peer-reviewed, Lead author
      • A differentiable merit function for shifted perturbed Karush-Kuhn-Tucker conditions of the nonlinear semidefinite programming
        Yuya Yamakawa; Nobuo Yamashita
        Pacific Journal of Optimization, Jul. 2015, Peer-reviewed, Lead author
      • A two-step primal-dual interior point method for nonlinear semidefinite programming problems and its superlinear convergence
        Yuya Yamakawa
        Journal of Operations Research Society of Japan, Dec. 2014, Peer-reviewed, Lead author

      Misc.

      • 非線形SDPに対する主双対内点法の超一次収束性 (最適化の基礎理論と応用)
        山川 雄也; 山下 信雄
        数理解析研究所講究録, Apr. 2014
      • 2-F-4 非線形SDPに対する2ステップ内点法とその超一次収束性について(連続最適化(3))
        山川 雄也; 山下 信雄
        日本オペレーションズ・リサーチ学会春季研究発表会アブストラクト集, 06 Mar. 2014
      • 1-A-5 非線形SDPのシフト付き中心化KKT条件に対するメリット関数(連続最適化(1))
        山川 雄也; 山下 信雄
        日本オペレーションズ・リサーチ学会春季研究発表会アブストラクト集, 05 Mar. 2013

      Industrial Property Rights

      • 特許6874770, 特願2018-537185, 降雨量予測装置、降雨量予測方法、および記録媒体
        山川雄也
      • 特許6819692, 特願2018-546936, シミュレーション装置、シミュレーション方法及びプログラム
        山川雄也
      • 特許6701839, 特開2017-167690, 特願2016-050383, センサ設置支援装置,データ処理装置,センサ設置支援方法及びプログラム
        山川雄也

      External funds: Kakenhi

      • 非線形半正定値計画問題に対する高速かつ効率的手法の開発
        Grant-in-Aid for Early-Career Scientists
        Basic Section 60020:Mathematical informatics-related
        Kyoto University
        山川 雄也
        From 01 Apr. 2021, To 31 Mar. 2026, Granted
        非線形半正定値計画問題;逐次二次半正定値計画法;AKKT条件;CAKKT条件;確率変分不等式問題;分布的ロバスト期待残差最小化問題;制約想定;点列最適性条件;下三角低ランク行列分解;最適化手法
      • Explicit dual formulations of continuous optimization problems and their applications
        Grant-in-Aid for Scientific Research (C)
        Basic Section 60020:Mathematical informatics-related
        Kyoto University
        山下 信雄
        From 01 Apr. 2021, To 31 Mar. 2025, Granted
        双対問題;均衡問題;非線形方程式;非線形半正定値計画;連続最適化
      list
        Last Updated :2024/03/20

        Education

        Teaching subject(s)

        • From 01 Apr. 2023, To 31 Mar. 2024
          Seminar on Applied Mathematics and Physics
          9074, Fall, Faculty of Engineering, 2
        • From 01 Apr. 2023, To 31 Mar. 2024
          Applied Mathematics and Physics Laboratory
          9089, Fall, Faculty of Engineering, 2
        • From 01 Apr. 2023, To 31 Mar. 2024
          Applied Mathematics and Physics Laboratory
          9125, Fall, Faculty of Engineering, 4
        • From 01 Apr. 2022, To 31 Mar. 2023
          Applied Mathematics and Physics Laboratory
          9125, Fall, Faculty of Engineering, 4
        • From 01 Apr. 2022, To 31 Mar. 2023
          Applied Mathematics and Physics Laboratory
          9089, Fall, Faculty of Engineering, 2
        • From Apr. 2020, To Mar. 2021
          Seminar on Applied Mathematics and Physics
          Fall, 工学部
        • From Apr. 2021, To Mar. 2022
          Applied Mathematics and Physics Laboratory
          Fall, 工学部
        • From Apr. 2021, To Mar. 2022
          Applied Mathematics and Physics Laboratory
          Fall, 工学部
        • From Apr. 2021, To Mar. 2022
          Seminar on Applied Mathematics and Physics
          Fall, 工学部
        list
          Last Updated :2024/03/20

          Administration

          Faculty management (title, position)

          • From 01 Apr. 2021, To 31 Mar. 2023
            図書WG委員
          • From 01 Apr. 2021, To 31 Mar. 2022
            図書WG委員(兼任 工学部数理コース)

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