Rchr
J-GLOBAL ID：200901049044099729   Update date: Apr. 27, 2024

YAMAMOTO Yusaku

ヤマモト ユウサク | YAMAMOTO Yusaku
Affiliation and department：
The University of Electro-Communications Graduate School of Informatics and Engineering, School of Informatics and Engineering, "Department of Computer and Network Engineering, Cluster I (Informatics and Computer Engineering)"

About The University of Electro-Communications Graduate School of Informatics and Engineering, School of Informatics and Engineering, "Department of Computer and Network Engineering, Cluster I (Informatics and Computer Engineering)"


Job title： Professor
Research field  (1)： Computational science
Research keywords  (8)： Parallel Computing ,  Eigenvalue Problems ,  Linear Simultaneous Equations ,  Numerical Linear Algebra ,  並列計算 ,  連立1次方程式 ,  固有値 ,  線形計算
Research theme for competitive and other funds  (22)：
  • 2022 - 2025 組合せ的前処理と量子アニーリングの融合による行列計算の加速手法
  • 2023 - 2024 Investigation for the advancement of the general-purpose surface-structural-analysis programme, 2DMAT II
  • 2019 - 2023 高いスケーリング性能と高精度性を併せ持つ次世代固有値・特異値分解ライブラリの開発
  • 2017 - 2022 Fast, accurate and stable matrix computation algorithms based on non-orthogonal transformations
  • 2017 - 2020 Development of a parallel matrix library for computational physics with high strong-scaling performance
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Papers (78)：
  • Shuhei Kudo, Yusaku Yamamoto, Takeo Hoshi. A fast and efficient computation method for reflective diffraction simulations. Computer Physics Communications. 2024. 296. 109029-109029
  • Koushi Teramoto, Masaki Kugaya, Shuhei Kudo, Yasuhiko Takenaga, Yusaku Yamamoto. Approximate Block Diagonalization of Symmetric Matrices Using Quantum Annealing. Proceedings of the International Conference on High Performance Computing in Asia-Pacific Region. 2024
  • Tomoya Miyashita, Shuhei Kudo, Yusaku Yamamoto. Roundoff error analysis of the double-exponential formula-based method for the matrix sign function. JSIAM Letters. 2024. 16. 13-16
  • Yusaku Yamamoto, Akiko Fukuda, Emiko Ishiwata, Masashi Iwasaki. Box and ball system with numbered boxes and balls. RIMS Kokyuroku Bessatsu. 2023. B94. 1. 21-36
  • Masato Kobayashi, Yusuke Hirota, Shuhei Kudo, Takeo Hoshi, Yusaku Yamamoto. Automatic performance tuning using the ATMathCoreLib tool: Two experimental studies related to dense symmetric eigensolvers. Concurrency and Computation: Practice and Experience. 2023
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MISC (38)：
  • 山本有作. 巨大行列の固有値計算. 数学セミナー. 2020. 59. 2. 12-17
  • Tsubasa Sakai, Shuhei Kudo, Hiroto Imachi, Yuto Miyatake, Takeo Hoshi, Yusaku Yamamoto. A parallelizable energy-preserving integrator MB4 and its application to quantum-mechanical wavepacket dynamics. Preprint: https://arxiv.org/abs/2003.04345. 2020
  • NAKANO Tomoki, YOKOKAWA MITSUO, FUKAYA Takeshi, YAMAMOTO Yusaku. 緩和型スーパーノードマルチフロンタル法の最適な緩和パラメータについて. 情報処理学会第167回ハイパフォーマンスコンピューティング研究会. 2018. 2018-HPC-167. 28. 1-8
  • 深谷猛, 深谷猛, 深谷猛, 山本有作, 山本有作, 今村俊幸, 今村俊幸. 1次元分散型のCAQRアルゴリズムの性能評価とパネルサイズの自動チューニングに向けた検討. 計算工学講演会論文集(CD-ROM). 2015. 20. ROMBUNNO.E-1-3
  • 柳澤優香, 深谷猛, 中務佑治, RAMASESHAN Kannan, 山本有作, 大石進一. シフト付きコレスキーQR分解アルゴリズムの提案. 日本応用数理学会年会講演予稿集(CD-ROM). 2014. 2014. ROMBUNNO.9GATSU4NICHI,09:30,F,2
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Books (10)：
  • Advanced Mathematical Science for Mobility Society
    Springer Singapore 2023 ISBN:9789819997718
  • 20世紀のトップ10アルゴリズム
    共立出版 2022
  • Vector Calculus
    裳華房 2020
  • 計算科学のための基本数理アルゴリズム
    共立出版 2019 ISBN:9784320122666
  • The Art of High Performance Computing for Computational Science, Vol. 1
    Springer 2019
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Lectures and oral presentations  (68)：
  • Approximate block diagonalization of symmetric matrices using a quantum annealing
    (2023 International Congress on Industrial and Applied Mathematics (ICIAM 2023) 2023)
  • Computing the matrix sign function with the double exponential formula
    (2023 International Congress on Industrial and Applied Mathematics (ICIAM 2023) 2023)
  • Landau-Lifshitz-Gilbert 方程式に対する数値解法の構造保存性について
    (第49回数値解析シンポジウム(NAS2023) 2023)
  • 2本のベクトルが張る平面上での回転による直交変換
    (日本応用数理学会 2023年研究部会連合発表会 2023)
  • q-離散戸田方程式の拡張とその時間発展が与えるLR変換について
    (日本応用数理学会 2023年研究部会連合発表会 2023)
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Awards (1)：
  • 2021/09 - 日本応用数理学会 論文賞 荻田・相島の固有ベクトル反復改良法に基づく実対称行列の固有値分解追跡手法
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