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Creation of a foundation for a numerical approach to deep learning

Research Project

Project/Area Number 20H01822
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Review Section Basic Section 12040:Applied mathematics and statistics-related
Research InstitutionOsaka University

Principal Investigator

Furihata Daisuke  大阪大学, サイバーメディアセンター, 教授 (80242014)

Co-Investigator(Kenkyū-buntansha) 松尾 宇泰  東京大学, 大学院情報理工学系研究科, 教授 (90293670)
田中 健一郎  東京大学, 大学院情報理工学系研究科, 准教授 (70610640)
宮武 勇登  大阪大学, サイバーメディアセンター, 准教授 (60757384)
佐藤 峻  東京大学, 大学院情報理工学系研究科, 助教 (40849072)
Project Period (FY) 2020-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥17,420,000 (Direct Cost: ¥13,400,000、Indirect Cost: ¥4,020,000)
Fiscal Year 2023: ¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2022: ¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
Fiscal Year 2021: ¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2020: ¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000)
Keywords深層学習 / 数値解析 / 微分方程式 / 数値積分 / 関数近似 / 数値解析的アプローチ / ニューラルネットワーク
Outline of Research at the Start

深層学習の理論的背景はその成果に比して弱く,確立が強く望まれる.
これに対し近年,ネットワークの表現能力,連続極限による力学系との対応などによる理論的研究があり,微分方程式数値解法や関数近似・数値積分等との関連性が指摘され,この方向での可能性に期待が高まっている.
本研究は,数値解析学者の立場からこの視座を改めて理解・整理し,深層学習に対する,数値解析学的アプローチ基盤を創出して深層学習理解・発展をより加速すること,および新しい応用分野の導入によるフィードバックで数値解析学に新展開をもたらすことで,第四の科学時代における応用数学・数理科学自身の発展を狙うものである.

Outline of Final Research Achievements

We constructed new DNNs such as ResNet from the perspective of numerical analysis, evaluated their performance using different numerical solution methods and image recognition, and studied the basis for understanding DNNs and the underlying dynamical systems through backward error analysis of the numerical differential equation representation of the network, and investigated the numerical analytical conceptual equivalents in DNNs.
We also verified appropriate formulas as part of our research into experimental DNN construction based on numerical integration formulas and explored the framework of numerical integration theory in network integral transforms. We evaluated the integral transform error of the numerical integration formula to create a theoretical foundation and studied appropriate function spaces for DNN function representations. We also researched integral transform approximations with more in-depth stages than existing research.

Academic Significance and Societal Importance of the Research Achievements

深層学習において,その理論的背景を明らかにすることは近年の大きな課題である.
これに対しネットワークの表現,力学系との連続極限対応などの理論的研究があり,微分方程式数値解法や関数近似・数値積分など数値解析学視点の重要性が深層学習研究者たちによって指摘され,問題解決可能性に期待が高まっている.
本研究成果は,数値解析学者の視座から現状況を改めて理解・整理し,深層学習に対する数値解析学的アプローチ基盤を創出して深層学習理解を発展させること,逆のフィードバックで数値解析学に新展開をもたらすことで第四の科学時代における応用数学・数理科学自身の発展に寄与するもので,まさにこの期待に応えたものである.

Report

(5 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Annual Research Report
  • 2021 Annual Research Report
  • 2020 Annual Research Report
  • Research Products

    (102 results)

All 2024 2023 2022 2021 2020

All Journal Article (33 results) (of which Int'l Joint Research: 4 results,  Peer Reviewed: 33 results,  Open Access: 22 results) Presentation (68 results) (of which Int'l Joint Research: 18 results,  Invited: 5 results) Book (1 results)

  • [Journal Article] Existence results on Lagrange multiplier approach for gradient flows and application to optimization2024

    • Author(s)
      Kenya Onuma, Shun Sato
    • Journal Title

      Japan Journal of Industrial and Applied Mathematics

      Volume: 41 Issue: 1 Pages: 165-189

    • DOI

      10.1007/s13160-023-00595-6

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Properties and practicability of convergence-guaranteed optimization methods derived from weak discrete gradients2024

    • Author(s)
      Kansei Ushiyama and Shun Sato and Takayasu Matsuo
    • Journal Title

      Numerical Algorithms

      Volume: - Issue: 3 Pages: 1331-1362

    • DOI

      10.1007/s11075-024-01790-3

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] High-order linearly implicit exponential integrators conserving quadratic invariants with application to scalar auxiliary variable approach2024

    • Author(s)
      Shun Sato
    • Journal Title

      Numerical Algorithms

      Volume: - Issue: 3 Pages: 1295-1329

    • DOI

      10.1007/s11075-024-01781-4

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Wavelet characterization of exponentially weighted Besov space with dominating mixed smoothness and its application to function approximation2024

    • Author(s)
      Yoshihiro Kogure and Ken’ichiro Tanaka
    • Journal Title

      Journal of Approximation Theory

      Volume: - Pages: 106037-106037

    • DOI

      10.1016/j.jat.2024.106037

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Convergence analysis of approximation formulas for analytic functions via duality for potential energy minimization2024

    • Author(s)
      Satoshi Hayakawa and Ken’ichiro Tanaka
    • Journal Title

      Japan Journal of Industrial and Applied Mathematics

      Volume: 41 Issue: 1 Pages: 105-127

    • DOI

      10.1007/s13160-023-00588-5

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Lyapunov-Stable Deep Equilibrium Models2024

    • Author(s)
      Haoyu Chu and Shikui Wei and Ting Liu and Yao Zhao and Yuto Miyatake
    • Journal Title

      Proceedings of the AAAI Conference on Artificial Intelligence

      Volume: 38 Issue: 10 Pages: 11615-11623

    • DOI

      10.1609/aaai.v38i10.29044

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Modelling the discretization error of initial value problems using the Wishart distribution2024

    • Author(s)
      Marumo Naoki、Matsuda Takeru、Miyatake Yuto
    • Journal Title

      Applied Mathematics Letters

      Volume: 147 Pages: 108833-108833

    • DOI

      10.1016/j.aml.2023.108833

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] High-order linearly implicit schemes conserving quadratic invariants2023

    • Author(s)
      Sato Shun、Miyatake Yuto、Butcher John C.
    • Journal Title

      Applied Numerical Mathematics

      Volume: 187 Pages: 71-88

    • DOI

      10.1016/j.apnum.2023.02.005

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] A unified discretization framework for differential equation approach with Lyapunov arguments for convex optimization2023

    • Author(s)
      Kansei Ushiyama, Shun Sato, Takayasu Matsuo
    • Journal Title

      Advances in Neural Information Processing Systems

      Volume: 36

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] The Symplectic Adjoint Method: Memory-Efficient Backpropagation of Neural-Network-Based Differential Equations2023

    • Author(s)
      Matsubara Takashi、Miyatake Yuto、Yaguchi Takaharu
    • Journal Title

      IEEE Transactions on Neural Networks and Learning Systems

      Volume: TBD Issue: 8 Pages: 1-13

    • DOI

      10.1109/tnnls.2023.3242345

    • Related Report
      2023 Annual Research Report 2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] A modified model for topic detection from a corpus and a new metric evaluating the understandability of topics2023

    • Author(s)
      Kitano Tomoya、Miyatake Yuto、Furihata Daisuke
    • Journal Title

      JSIAM Letters

      Volume: 15 Issue: 0 Pages: 121-124

    • DOI

      10.14495/jsiaml.15.121

    • ISSN
      1883-0609, 1883-0617
    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Convergence rates for energies of interacting particles whose distribution spreads out as their number increases2023

    • Author(s)
      van Meurs Patrick、Tanaka Ken'ichiro
    • Journal Title

      ESAIM: Control, Optimisation and Calculus of Variations

      Volume: 29 Pages: 1-28

    • DOI

      10.1051/cocv/2022083

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Skeleton structure inherent in discrete-time quantum walks2023

    • Author(s)
      Yamagami Tomoki、Segawa Etsuo、Tanaka Ken'ichiro、Mihana Takatomo、R?hm Andr?、Horisaki Ryoichi、Naruse Makoto
    • Journal Title

      Physical Review A

      Volume: 107 Issue: 1 Pages: 012222-012222

    • DOI

      10.1103/physreva.107.012222

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Error analysis of approximation of derivatives by means of the Sinc approximation for double-exponentially decaying functions2023

    • Author(s)
      Tomoaki Okayama, Ken'ichiro Tanaka
    • Journal Title

      JSIAM Letters

      Volume: 15 Issue: 0 Pages: 5-8

    • DOI

      10.14495/jsiaml.15.5

    • ISSN
      1883-0609, 1883-0617
    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Precise Approximation Formula for Fourier Transform of Functions with Exponential Decay for the Whole Frequency2022

    • Author(s)
      高倉 直哉、田中 健一郎
    • Journal Title

      Transactions of the Japan Society for Industrial and Applied Mathematics

      Volume: 32 Issue: 2 Pages: 75-100

    • DOI

      10.11540/jsiamt.32.2_75

    • ISSN
      2424-0982
    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Essential convergence rate of ordinary differential equations appearing in optimization2022

    • Author(s)
      Kansei Ushiyama, Shun Sato, Takayasu Matsuo
    • Journal Title

      JSIAM Letters

      Volume: 14 Issue: 0 Pages: 119-122

    • DOI

      10.14495/jsiaml.14.119

    • ISSN
      1883-0609, 1883-0617
    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Composing a surrogate observation operator for sequential data assimilation2022

    • Author(s)
      Akita Kosuke、Miyatake Yuto、Furihata Daisuke
    • Journal Title

      JSIAM Letters

      Volume: 14 Issue: 0 Pages: 123-126

    • DOI

      10.14495/jsiaml.14.123

    • ISSN
      1883-0609, 1883-0617
    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Deriving efficient optimization methods based on stable explicit numerical methods2022

    • Author(s)
      Ushiyama Kansei、Sato Shun、Matsuo Takayasu
    • Journal Title

      JSIAM Letters

      Volume: 14 Issue: 0 Pages: 29-32

    • DOI

      10.14495/jsiaml.14.29

    • ISSN
      1883-0609, 1883-0617
    • Related Report
      2022 Annual Research Report 2021 Annual Research Report 2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Quadratures over graphs via the Frank-Wolfe method and its variant2022

    • Author(s)
      Oshiro Ryunosuke、Tanaka Ken'ichiro
    • Journal Title

      JSIAM Letters

      Volume: 14 Issue: 0 Pages: 41-44

    • DOI

      10.14495/jsiaml.14.41

    • ISSN
      1883-0609, 1883-0617
    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Mathematical analysis of a conservative numerical scheme for the Ostrovsky equation2022

    • Author(s)
      Shuto Kawai, Shun Sato, Takayasu Matsuo
    • Journal Title

      JSIAM Letters

      Volume: 14 Issue: 0 Pages: 53-56

    • DOI

      10.14495/jsiaml.14.53

    • ISSN
      1883-0609, 1883-0617
    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Yet another DE-Sinc indefinite integration formula2022

    • Author(s)
      Okayama, T, Tanaka, K’ichiro
    • Journal Title

      Dolomites Research Notes on Approximation

      Volume: 15 Pages: 105-116

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Scalar auxiliary variable approach for conservative/dissipative partial differential equations with unbounded energy functionals2022

    • Author(s)
      Kemmochi Tomoya、Sato Shun
    • Journal Title

      BIT Numerical Mathematics

      Volume: - Issue: 3 Pages: 903-930

    • DOI

      10.1007/s10543-021-00904-w

    • Related Report
      2021 Annual Research Report 2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] A second-order accurate structure-preserving scheme for the Cahn-Hilliard equation with a dynamic boundary condition2022

    • Author(s)
      Okumura Makoto、Fukao Takeshi、Furihata Daisuke、Yoshikawa Shuji
    • Journal Title

      Communications on Pure and Applied Analysis

      Volume: 21 Issue: 2 Pages: 355-355

    • DOI

      10.3934/cpaa.2021181

    • Related Report
      2021 Annual Research Report 2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Computing the matrix fractional power with the double exponential formula2021

    • Author(s)
      Tatsuoka Fuminori、Sogabe Tomohiro、Miyatake Yuto、Kemmochi Tomoya、Zhang Shao-Liang
    • Journal Title

      ETNA - Electronic Transactions on Numerical Analysis

      Volume: 54 Pages: 558-580

    • DOI

      10.1553/etna_vol54s558

    • Related Report
      2021 Annual Research Report 2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Adjoint-based exact Hessian computation2021

    • Author(s)
      S. Ito, T. Matsuda, and Y. Miyatake
    • Journal Title

      BIT Numerical Mathematics

      Volume: - Issue: 2 Pages: 503-522

    • DOI

      10.1007/s10543-020-00833-0

    • Related Report
      2021 Annual Research Report 2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] A fully discrete curve-shortening polygonal evolution law for moving boundary problems2021

    • Author(s)
      Sakakibara Koya、Miyatake Yuto
    • Journal Title

      Journal of Computational Physics

      Volume: 424 Pages: 109857-109857

    • DOI

      10.1016/j.jcp.2020.109857

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Generalization of partitioned Runge--Kutta methods for adjoint systems2021

    • Author(s)
      T. Matsuda and Y. Miyatake
    • Journal Title

      Journal of Computational and Applied Mathematics

      Volume: 388 Pages: 113308-113308

    • DOI

      10.1016/j.cam.2020.113308

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Estimation of ordinary differential equation models with discretization error quantification2021

    • Author(s)
      T. Matsuda and Y. Miyatake
    • Journal Title

      SIAM/ASA Journal on Uncertainty Quantification

      Volume: 9 Issue: 1 Pages: 302-331

    • DOI

      10.1137/19m1278405

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Symplectic adjoint method for exact gradient of neural ODE with minimal memory2021

    • Author(s)
      Takashi Matsubara, Yuto Miyatake, Takaharu Yaguchi
    • Journal Title

      Advances in Neural Information Processing Systems

      Volume: 35

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Kernel-based interpolation at approximate Fekete points2020

    • Author(s)
      Karvonen Toni、Sarkka Simo、Tanaka Ken’ichiro
    • Journal Title

      Numerical Algorithms

      Volume: 87 Issue: 1 Pages: 445-468

    • DOI

      10.1007/s11075-020-00973-y

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Effective methods for obtaining good points for quadrature in reproducing kernel Hilbert spaces2020

    • Author(s)
      Oshiro Ryunosuke、Tanaka Ken'ichiro
    • Journal Title

      JSIAM Letters

      Volume: 12 Issue: 0 Pages: 61-64

    • DOI

      10.14495/jsiaml.12.61

    • NAID

      130007925471

    • ISSN
      1883-0609, 1883-0617
    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] A parallelizable energy-preserving integrator MB4 and its application to quantum-mechanical wavepacket dynamics2020

    • Author(s)
      Sakai Tsubasa、Kudo Shuhei、Imachi Hiroto、Miyatake Yuto、Hoshi Takeo、Yamamoto Yusaku
    • Journal Title

      Japan Journal of Industrial and Applied Mathematics

      Volume: 38 Issue: 1 Pages: 105-123

    • DOI

      10.1007/s13160-020-00430-2

    • NAID

      210000183552

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] A structure-preserving scheme for the Allen?Cahn equation with a dynamic boundary condition2020

    • Author(s)
      Okumura Makoto、Daisuke Furihata
    • Journal Title

      Discrete & Continuous Dynamical Systems - A

      Volume: 40 Issue: 8 Pages: 4927-4960

    • DOI

      10.3934/dcds.2020206

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Presentation] 最適化手法の連続時間モデルに対する新しい収束率解析法2024

    • Author(s)
      牛山 寛生, 佐藤 峻, 松尾 宇泰
    • Organizer
      日本応用数理学会 第20回 研究部会連合発表会
    • Related Report
      2023 Annual Research Report
  • [Presentation] 光錐座標上のsine-Gordon方程式の構造保存的2段スキームの数学的解析2024

    • Author(s)
      川合 秀人, 佐藤 峻
    • Organizer
      日本応用数理学会 第20回 研究部会連合発表会
    • Related Report
      2023 Annual Research Report
  • [Presentation] 部分和分作用素を用いた離散変分導関数法2024

    • Author(s)
      梅津 光汰, 佐藤 峻, 松尾 宇泰
    • Organizer
      日本応用数理学会 第20回 研究部会連合発表会
    • Related Report
      2023 Annual Research Report
  • [Presentation] Convergence rates of optimization methods in continuous and discrete time2024

    • Author(s)
      Shun Sato
    • Organizer
      International Conference on Scientific Computing and Machine Learning 2024
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Adjoint-based exact Hessian computation2024

    • Author(s)
      Yuto Miyatake
    • Organizer
      Workshop on Functional Inference and Machine Intelligence
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] A particle method based on Voronoi decomposition for the Cahn-Hilliard equation2024

    • Author(s)
      Daisuke Furihata
    • Organizer
      Structured Machine Learning and Time-Stepping for Dynamical System
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] 最適化のための Runge--Kutta--Chebyshev 法における曲線探索法2023

    • Author(s)
      牛山 寛生, 佐藤 峻, 松尾 宇泰
    • Organizer
      第49回 数値解析シンポジウム
    • Related Report
      2023 Annual Research Report
  • [Presentation] KdV 型発展方程式に対するエネルギー保存解法の数学的解析手法について2023

    • Author(s)
      川合 秀人, 松尾 宇泰, 佐藤 峻
    • Organizer
      第49回 数値解析シンポジウム
    • Related Report
      2023 Annual Research Report
  • [Presentation] アフィン座標変換に対して不変な射影を用いた常微分方程式の保存的数値解法2023

    • Author(s)
      石井 直樹, 佐藤 峻, 松尾 宇泰
    • Organizer
      第49回 数値解析シンポジウム
    • Related Report
      2023 Annual Research Report
  • [Presentation] 発展方程式に対する乱択化分解解法2023

    • Author(s)
      麻生 豊大, 佐藤 峻, 松尾 宇泰
    • Organizer
      第49回 数値解析シンポジウム
    • Related Report
      2023 Annual Research Report
  • [Presentation] 連続最適化手法とその連続極限における収束レートの対応について2023

    • Author(s)
      佐藤 峻, 牛山 寛生, 野沢 諒太, 松尾 宇泰
    • Organizer
      RIMS共同研究(公開型)「新時代における高性能科学技術計算法の探究」
    • Related Report
      2023 Annual Research Report
    • Invited
  • [Presentation] A Unified Discretization Framework for Differential Equation Approach with Lyapunov Arguments for Convex Optimization2023

    • Author(s)
      牛山 寛生, 佐藤 峻, 松尾 宇泰
    • Organizer
      第26回情報論的学習理論ワークショップ
    • Related Report
      2023 Annual Research Report
  • [Presentation] 半正定値計画による多変数 cubature 公式の構成法2023

    • Author(s)
      小暮 祥弘, 田中 健一郎
    • Organizer
      第49回 数値解析シンポジウム
    • Related Report
      2023 Annual Research Report
  • [Presentation] Structure-preserving numerical methods for gradient flows of planar closed curves2023

    • Author(s)
      Tomoya Kemmochi, Yuto Miyatake, Koya Sakakibara
    • Organizer
      International Congress on Industrial and Applied Mathematics
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 平面曲線に関する汎函数最小化問題に深層強化学習を適用するための報酬設計の検討2023

    • Author(s)
      岩瀨 慈恩, 宮武 勇登, 降籏 大介
    • Organizer
      第49回 数値解析シンポジウム
    • Related Report
      2023 Annual Research Report
  • [Presentation] Particle-cluster dynamics model for coarsening process of phase separation phenomenon modeled by the Cahn-Hilliard Equation2023

    • Author(s)
      Daisuke Furihata
    • Organizer
      International Congress on Industrial and Applied Mathematics
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 相分離問題の粗視化のための particle dynamics model2023

    • Author(s)
      降籏 大介
    • Organizer
      第28回 計算工学講演会
    • Related Report
      2023 Annual Research Report
  • [Presentation] Nonlinear difference operator for approximating derivatives2023

    • Author(s)
      Daisuke Furihata
    • Organizer
      2023 Workshop on Numerical Analysis and Image Science
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Adjoint-based exact Hessian computation2023

    • Author(s)
      Y. Miyatake
    • Organizer
      Workshop on Functional Inference and Machine Intelligence
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] A family of fourth-order energy-preserving integrators2023

    • Author(s)
      Y. Miyatake
    • Organizer
      ANODE
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] High-order linearly implicit schemes conserving quadratic invariants2023

    • Author(s)
      S. Sato
    • Organizer
      ANODE2023
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] A particle dynamics model for coarsening process of phase separation phenomenon modeled by the Cahn-Hilliard Equation2022

    • Author(s)
      Daisuke Furihata
    • Organizer
      JSPS seminar 2022 "Topics in computational methods for stochastic and deterministic differential equations"
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] particle dynamics model による Cahn-Hilliard 方程式解の粗視化2022

    • Author(s)
      降籏 大介
    • Organizer
      日本応用数理学会2022年年会
    • Related Report
      2022 Annual Research Report
  • [Presentation] Structure-preserving algorithm, optimization problem and applications to nano-particle problems2022

    • Author(s)
      降籏 大介
    • Organizer
      High-index saddleの探索アルゴリズムとその応用
    • Related Report
      2022 Annual Research Report
  • [Presentation] A Particle Dynamics Model for Coarsening Process of Cahn-Hilliard Equation2022

    • Author(s)
      Tomoaki Miyatake, Yuto Miyatake, Daisuke Furihata
    • Organizer
      WCCM-APCOM YOKOHAMA 2022 (15th World Congress on Computation Mecchanics & 8th Asian Pacific Congress on Computation Mechanics)
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 非線形差分作用素の近似誤差プロファイルと入力誤差への耐性2022

    • Author(s)
      降籏 大介
    • Organizer
      第27回計算工学講演会
    • Related Report
      2022 Annual Research Report
  • [Presentation] Generalized nearly isotonic regression and its applications to discretization error quantification of ODEs2022

    • Author(s)
      Y. Miyatake
    • Organizer
      JSPS Alumni Seminar Topics in computational methods for stochastic and deterministic differential equations
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] A family of fourth-order energy-preserving integrators2022

    • Author(s)
      Y. Miyatake
    • Organizer
      ICNAAM 2022
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Quantifying the error in the numerical integration of ODEs based on isotonic regression2022

    • Author(s)
      T. Matsuda, Y. Miyatake
    • Organizer
      WCCM-APCOM 2022
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Piecewise monotone estimation in one-parameter exponential families2022

    • Author(s)
      T. Matsuda, Y. Miyatake
    • Organizer
      EcoSta 2022
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 最適化手法由来のヘッセ行列を伴う連続力学系モデルに対する数値解析学的アプローチ2022

    • Author(s)
      上島智哉, 佐藤峻, 牛山寛生, 松尾 宇泰, 田中健一郎
    • Organizer
      日本応用数理学会2023年研究部会連合発表会
    • Related Report
      2022 Annual Research Report
  • [Presentation] 最適化手法記述のための弱い離散勾配について2022

    • Author(s)
      牛山 寛生, 佐藤峻, 松尾 宇泰
    • Organizer
      2022年度応用数学合同研究集会
    • Related Report
      2022 Annual Research Report
  • [Presentation] 連続最適化に対する数値解析学的アプローチ2022

    • Author(s)
      佐藤峻, 牛山 寛生, 松尾 宇泰
    • Organizer
      RIMS共同研究 (公開型)「数値解析が拓く次世代情報社会~エッジから富岳まで~」
    • Related Report
      2022 Annual Research Report
  • [Presentation] Nesterovの加速勾配法の可変刻み線形多段法としての解釈とその応用について2022

    • Author(s)
      野沢 諒太, 佐藤峻, 松尾 宇泰
    • Organizer
      日本応用数理学会2022年度年会
    • Related Report
      2022 Annual Research Report
  • [Presentation] 勾配流に対する離散勾配を用いた最適化手法の統一的記述について2022

    • Author(s)
      牛山 寛生, 佐藤峻, 松尾 宇泰
    • Organizer
      日本応用数理学会2022年度年会
    • Related Report
      2022 Annual Research Report
  • [Presentation] 最適化手法由来のヘッセ行列を伴う連続力学系モデルに対する数値解析学的アプローチ2022

    • Author(s)
      上島 智哉, 佐藤 峻, 牛山 寛生, 松尾 宇泰, 田中 健一郎
    • Organizer
      日本応用数理学会 第19回 研究部会連合発表会
    • Related Report
      2022 Annual Research Report
  • [Presentation] 均衡測度の数値計算に対する近似法について2022

    • Author(s)
      上野 颯人, 田中 健一郎
    • Organizer
      日本応用数理学会 第19回 研究部会連合発表会
    • Related Report
      2022 Annual Research Report
  • [Presentation] Swap stepの無い条件付き勾配法およびkernel herding法への応用2022

    • Author(s)
      田中 健一郎
    • Organizer
      京都大学応用数学セミナー (KUAMS)
    • Related Report
      2022 Annual Research Report
    • Invited
  • [Presentation] 指数重み付き混合ベゾフ空間のウェーブレット係数による特徴づけに基づくスパースグリッドの構成2022

    • Author(s)
      小暮 祥弘, 田中 健一郎
    • Organizer
      2022年度応用数学合同研究集会
    • Related Report
      2022 Annual Research Report
  • [Presentation] 離散時間1次元量子ウォークの骨格構造について2022

    • Author(s)
      山上 智輝, 瀬川 悦生, 田中 健一郎, 巳鼻 孝朋, レーム アンドレ, 堀﨑 遼一, 成瀬 誠
    • Organizer
      2022年度応用数学合同研究集会
    • Related Report
      2022 Annual Research Report
  • [Presentation] Skeleton structure inherent in quantum walks2022

    • Author(s)
      T. Yamagami, E. Segawa, K. Tanaka, T. Mihana, A. R?hm, R. Horisaki, M. Naruse
    • Organizer
      2022 International Symposium on Nonlinear Theory and Its Applications (NOLTA2022)
    • Related Report
      2022 Annual Research Report
  • [Presentation] Pairwise Conditional Gradients without Swap Steps and Sparser Kernel Herding2022

    • Author(s)
      Kazuma Tsuji, Ken'ichiro Tanaka, Sebastian Pokutta
    • Organizer
      The 6th RIKEN-IMI-ISM-NUS-ZIB-MODAL-NHR Workshop on Advances in Classical and Quantum Algorithms for Optimization and Machine Learning
    • Related Report
      2022 Annual Research Report
  • [Presentation] 最適輸送問題によるグラフ求積の定式化へのK-メディアン問題・DC計画によるアプローチ2022

    • Author(s)
      大城 隆之介, 田中 健一郎
    • Organizer
      日本応用数理学会 2022年度 年会
    • Related Report
      2022 Annual Research Report
  • [Presentation] 二重指数関数型減衰関数に対するSinc関数近似に基づく微分近似の誤差評価2022

    • Author(s)
      岡山 友昭, 田中 健一郎
    • Organizer
      日本応用数理学会 2022年度 年会
    • Related Report
      2022 Annual Research Report
  • [Presentation] 二重指数関数型数値積分公式によるガンマ関数の数値計算法の提案2022

    • Author(s)
      山本 かけい, 田中 健一郎, 松尾 宇泰
    • Organizer
      日本応用数理学会 2022年度 年会
    • Related Report
      2022 Annual Research Report
  • [Presentation] Pairwise Conditional Gradients without Swap Steps and Sparser Kernel Herding2022

    • Author(s)
      Kazuma Tsuji, Ken'ichiro Tanaka, Sebastian Pokutta
    • Organizer
      The 39th International Conference on Machine Learning (ICML 2022)
    • Related Report
      2022 Annual Research Report
  • [Presentation] 量子ウォークにより駆動されるランダムウォークの推移確率の骨格構造2022

    • Author(s)
      山上 智輝, 瀬川 悦生, 田中 健一郎, 巳鼻 孝朋, レーム アンドレ, 堀﨑 遼一
    • Organizer
      電子情報通信学会複雑コミュニケーションサイエンス研究会(CCS/NLP) (プログラム)
    • Related Report
      2022 Annual Research Report
  • [Presentation] High-order linearly implicit schemes conserving quadratic invariants2022

    • Author(s)
      S. Sato
    • Organizer
      JSPS Seminar: Topics in computational methods for stochastic and deterministic differential equations
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 対数差分とその応用2022

    • Author(s)
      降籏 大介
    • Organizer
      第126回 HMMCセミナー
    • Related Report
      2021 Annual Research Report 2020 Annual Research Report
  • [Presentation] 対数差分をはじめとする非線形差分公式の解析2022

    • Author(s)
      降籏 大介
    • Organizer
      日本応用数理学会研究部会連合発表会
    • Related Report
      2021 Annual Research Report 2020 Annual Research Report
  • [Presentation] 非負制約付き2次計画問題に対する適応型射影SOR法2021

    • Author(s)
      宮武 勇登, 曽我部 知広
    • Organizer
      日本応用数理学会2021年度年会
    • Related Report
      2021 Annual Research Report 2020 Annual Research Report
  • [Presentation] 最適化に現れる常微分方程式の本質的な収束レート2021

    • Author(s)
      牛山 寛生, 佐藤 峻, 松尾 宇泰
    • Organizer
      日本応用数理学会2021年度年会
    • Related Report
      2021 Annual Research Report 2020 Annual Research Report
  • [Presentation] 最適化に適した安定な数値解法について2021

    • Author(s)
      牛山 寛生, 佐藤 峻, 松尾 宇泰
    • Organizer
      日本応用数理学会2021年度年会
    • Related Report
      2021 Annual Research Report 2020 Annual Research Report
  • [Presentation] 非線形差分 -線形計算であることを捨てて-2021

    • Author(s)
      降籏 大介
    • Organizer
      北陸応用数理研究会2021
    • Related Report
      2021 Annual Research Report 2020 Annual Research Report
    • Invited
  • [Presentation] 非線形性をもたせた差分による微分近似2021

    • Author(s)
      降籏 大介
    • Organizer
      第26回計算工学講演会
    • Related Report
      2021 Annual Research Report 2020 Annual Research Report
  • [Presentation] 非線形性差分とその応用2021

    • Author(s)
      降籏 大介
    • Organizer
      日本応用数理学会年会
    • Related Report
      2021 Annual Research Report 2020 Annual Research Report
  • [Presentation] 連続最適化問題に対する微分方程式の数値解法によるアプローチ2021

    • Author(s)
      佐藤 峻
    • Organizer
      京都大学応用数学セミナー
    • Related Report
      2021 Annual Research Report 2020 Annual Research Report
  • [Presentation] 混合微分を含む発展方程式に対する構造保存数値解法2021

    • Author(s)
      佐藤 峻
    • Organizer
      高専間ネットワークによる微分方程式研究会
    • Related Report
      2021 Annual Research Report 2020 Annual Research Report
  • [Presentation] Scalar Auxiliary Variable法と保存的exponential Runge-Kutta法の組合せによる高速かつ高精度なスキームの構成2021

    • Author(s)
      佐藤 峻
    • Organizer
      日本応用数理学会2021年研究部会連合発表会
    • Related Report
      2021 Annual Research Report 2020 Annual Research Report
  • [Presentation] 一般化近単調回帰と常微分方程式の数値計算の誤差推定2021

    • Author(s)
      松田 孟留, 宮武 勇登
    • Organizer
      日本応用数理学会2021年度年会
    • Related Report
      2021 Annual Research Report 2020 Annual Research Report
  • [Presentation] グラフ求積へのFrank-Wolfe法の適用2021

    • Author(s)
      大城 隆之介,田中 健一郎
    • Organizer
      日本応用数理学会 2021年 研究部会連合発表会
    • Related Report
      2021 Annual Research Report 2020 Annual Research Report
  • [Presentation] カーネル求積によるグラフ求積とその収束解析2021

    • Author(s)
      大城 隆之介,田中 健一郎
    • Organizer
      2021年度 応用数学合同研究集会
    • Related Report
      2021 Annual Research Report 2020 Annual Research Report
  • [Presentation] Symplectic adjoint method for exact gradient of neural ODE with minimal memory2021

    • Author(s)
      T. Matsubara, Y. Miyatake, T. Yaguchi
    • Organizer
      Advances in Neural Information Processing Systems 35 (NeurIPS2021)
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 二次の保存量をもつ常微分方程式に対する線形かつ高精度な構造保存数値解法2020

    • Author(s)
      佐藤 峻
    • Organizer
      数値解析セミナー
    • Related Report
      2020 Annual Research Report
  • [Presentation] Adjoint-based computation of the exact Hessian-vector multiplication2020

    • Author(s)
      Shin-ichi Ito, Takeru Matsuda, Yuto Miyatake
    • Organizer
      ICNAAM 2020
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Second-order adjoint方程式に基づくヘッセ行列の計算について2020

    • Author(s)
      伊藤 伸一, 松田 孟留, 宮武 勇登
    • Organizer
      日本応用数理学会2020年度年会
    • Related Report
      2020 Annual Research Report
  • [Presentation] 任意凸多角形上での離散微分積分則とそれらに基づく偏微分方程式の構造保存数値解法2020

    • Author(s)
      降籏 大介
    • Organizer
      第25回計算工学講演会
    • Related Report
      2020 Annual Research Report
  • [Presentation] 凸多角形格子上の積分定理とその証明2020

    • Author(s)
      降籏 大介
    • Organizer
      日本応用数理学会2020年度年会
    • Related Report
      2020 Annual Research Report
  • [Book] 変数変換型数値計算法2023

    • Author(s)
      田中 健一郎, 岡山 友昭
    • Total Pages
      294
    • Publisher
      岩波書店
    • ISBN
      9784000298605
    • Related Report
      2023 Annual Research Report

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Published: 2020-04-28   Modified: 2025-01-30  

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