Kouya Tomonori

Profile Information

Affiliation: Professor, Faculty of Science and Engineering Department of Mathematical and Data Science, OtemonGakuinUnversity

Degree: Bachelor of Science(Mar, 1991, Tokyo University of Science)
Master of Science(Mar, 1993, Nihon University)
Ph.D(Nihon University)
Ph.D(Mar, 1997, Nihon University)

Other name(s) (e.g. nickname): Otemon Gakuin University
ORCID iD: https://orcid.org/0000-0003-0178-5519
J-GLOBAL ID: 200901010326652699
Researcher ID: HSF-1654-2023
researchmap Member ID: 1000282848

External link: https://www.researchgate.net/profile/Tomonori-Kouya

Tomonori Kouya was born in Sapporo, Japan, in 1969. He received Ph.D. degree from Nihon University in 1997. He is a professor at the Department of Computer Science, Faculty of Informatics, Shizuoka Institute of Science and Technology. His research interests are in high performance computing mainly using multiple precision floating point arithmetic and its error analysis. He is a member of Information Processing Society of Japan (IPSJ), SIAM, and Japan SIAM.

Research Interests

Research Areas

Research History

Apr, 2025 - Present

Part-time researcher for university or other academic organization, General Technology Research Laboratory, Shizuoka Institute of Science and Technology
Apr, 2025 - Present

Professor, Faculty of Science and Engineering Department of Mathematical and Data Science, OtemonGakuinUnversity
Apr, 2025 - Present

Professor, Department of Mathematical Data Science, Otemon Gakuin University
Apr, 2023 - Mar, 2025

Professor (Department Chair of Computer Science), Faculty of Informatics, Shizuoka Institute of Science and Technology
Apr, 2019 - Mar, 2023

Full Professor (Dean of Informatics), Faculty of Informatics, Shizuoka Institute of Science and Technology
Apr, 2017 - Mar, 2019

Professor, Faculty of informatics, Shizuoka Institute of Science and Technology
Apr, 2016 - Mar, 2017

Professor, Department of Computer System, Faculty of Comprehensive Informatics, Shizuoka Institute of Science and Technology
Apr, 2011 - Mar, 2016

Associate Professor, Department of Computer System, Faculty of Comprehensive Informatics, Shizuoka Institute of Science and Technology
Apr, 2009 - Mar, 2014

Parttime lecturer, Tokai Axis Nursing School
Apr, 2008 - Mar, 2011

Lecturer, Department of Computer System, Faculty of Comprehensive Informatics, Shizuoka Institute of Science and Technology
Apr, 2008 - Mar, 2009

Faculty of Informatics, Shizuoka University
Apr, 2003 - Mar, 2009

Parttime lecturer, Faculty of Engineering Department of Mechanical Engineering, Shizuoka University
Apr, 1999 - Mar, 2008

Lecturer, Department of Computer Science, Shizuoka Institute of Science and Technology
Apr, 2001 - Mar, 2003

Part-time lecturer, Faculty of Engineering Department of Electronic Engineering, Shizuoka University
Apr, 2000 - Mar, 2003

Part-time lecturer, College of Science and Engineering, Kanto Gakuin University
Apr, 1993 - Mar, 1999

Lecturer, Department of Information Processing, Ishikawa Polytechnic College

Education

Apr, 1994 - Mar, 1997

Graduate School of Science and Technology, Nihon University
Apr, 1991 - Mar, 1993

Mathematics, Graduate School of Science and Technology, Nihon University
Apr, 1987 - Mar, 1991

Mathematics, Faculty of Science and Technology, Tokyo University of Science

Committee Memberships

Jun, 2023 - Present

校閲委員, 日本工学教育協会
Jun, 2020 - May, 2023

論文誌シニア査読委員, 情報処理学会
May, 2019 - Mar, 2023

ACS論文誌編集委員, 情報処理学会
Apr, 2017 - Mar, 2021

論文誌編集委員, 日本応用数理学会
Jun, 2014 - May, 2020

論文誌査読委員, 情報処理学会
Jun, 2011 - May, 2014

論文誌編集委員, 情報処理学会
Apr, 2010 - Mar, 2013

Judging committee, Scilab Toolbox Japan Contest
Apr, 2010 - Mar, 2013

HPC研究会運営委員, 情報処理学会
Apr, 2009 - Mar, 2010

Advisory board member, Scilab Toolbox Japan Contest 2009
1999 - 2003

HPC研究会運営委員, 情報処理学会

Awards

Sep, 2009

優秀論文賞, Web デザイン特別プログラム教育のための小規模サーチエンジンの試作, 情報教育研究集会

幸谷智紀, 竹口友大

Major Papers

Acceleration of Multiple Precision Matrix Multiplication Based on Multi-component Floating-Point Arithmetic Using AVX2

Tomonori Kouya

Computational Science and Its Applications – ICCSA 2021, 202-217, 2021 Peer-reviewed
Performance evaluation of an efficient double-double BLAS1 function with error-free transformation and its application to explicit extrapolation methods

KOUYA Tomonori

2019 IEEE 26th Symposium on Computer Arithmetic (ARITH), 26 120-123, Jun, 2019 Peer-reviewed
Performance evaluation of multiple precision matrix multiplications using parallelized Strassen and Winograd algorithms

KOUYA Tomonori

JSIAM Letters, 8 21-24, May, 2016 Peer-reviewed
Accelerated Multiple Precision Matrix Multiplication using Strassen's Algorithm and Winograd's Variant

Tomonori Kouya

JSIAM Letters, 6 81-84, Oct, 2014 Peer-reviewed
BNCpack-Multiple Precision Numerical Computation Library using MPFR/GMP

KOYA TOMONORI

応用数理, 21(3) 197-206, Sep, 2011 Peer-reviewedInvited
On High-precision and High-performance Computation for Solving Linear System of Equations by Mixed-precision Iterative Refinement Method Using IEEE754 Double- and Multiple-precision Floating-point Arithmetics(Algorithms for Matrix/Eigenvalue Problems and

Kouya Tomonori

Transactions of the Japan Society for Industrial and Applied Mathematics, 19(3) 313-328, Sep, 2009 Peer-reviewed
PC Cluster 上における多倍長数値計算ライブラリ BNCpack の並列分散化

幸谷智紀

Linux Conference 抄録集, Vol.1, CP-14, 2003 Peer-reviewed
On the Round-off Error Estimation Using IEEE754 Floating-Point Arithmetic

Kouya Tomonori, Nagasaka Hideko

Transactions of the Japan Society for Industrial and Applied Mathematics, 7(1) 11-89, Mar, 1997 Peer-reviewed

Misc.

Acceleration of multiple-precision complex basic linear computation on Python programming environment

Tomonori Kouya

Bulletin of Shizuoka Institute of Science and Technology, 32 69-74, Sep 30, 2024
Performance evaluation of accelerated complex multiple-precision LU decomposition

Tomonori Kouya

Mar 24, 2024
Propose of statistical error estimation in numerical process

KOUYA, Tomonori

The Bulletin of the Shizuoka Institute of Science and Technology, 31 75-78, Aug 31, 2023
Performance Evaluation of BNCmatmul, multiple precision linear computation library, accelerated with x86 AVX instruction

Tomonori, KOUYA

30 7-11, Aug 31, 2022
Development of Teaching Materials for Python-based Web Programming using Flask

Tomonori, KOUYA

30 123-128, Aug 31, 2022
Trial acceleration of multiple precision linear computation with AVX2 on Python programming environment

Tomonori KOUYA

(29) 49-56, Aug 31, 2021
On multiple precision computing on Python programming environment

Tomonori KOUYA

(28) 23-31, May 25, 2020
Educational Material for Development of Hybrid Application using Apache Cordova

Tomonori KOUYA

静岡理工科大学紀要 = The Bulletin of the Shizuoka Institute of Science and Technology, (27) 73-78, Aug 30, 2019
The Internship Program in 2016 : Toward Higher Quality Education for Future Career of SIST students

Tomonori KOUYA, Shunichi SAKURAGI, Satomi HATTORI, Hirofumi KASATANI, Katsuya OGURI, Koji IIGURA, Hideo AOSHIMA, Shinya WATANABE

静岡理工科大学紀要 = The Bulletin of the Shizuoka Institute of Science and Technology, (25) 151-168, Jan 31, 2018
A Development of Educational Materials of Web Programming by and for SIST Undergraduate Students

Tomonori KOUYA

静岡理工科大学紀要 = The Bulletin of the Shizuoka Institute of Science and Technology, (25) 169-174, Jan 31, 2018
Programming Education in Faculty of Comprehensive Informatics : Past, Present and Future

Emiko NOMURA, Yoshinori SUGANUMA, Tomonori KOUYA

静岡理工科大学紀要, 26 117-123, 2018
The Internship Program in 2015 : Toward Higher Quality Education for Future Career of SIST students

Tomonori KOUYA, Akihiro GOTO, Takeharu KOHRI, Naoko YOSHlKAWA, Rie MATSUNAGA, Takeshi MATSUDA, Hideo AOSHlMA, Takeshi FUKANO

静岡理工科大学紀要 = Bulletin of the Shizuoka Institute of Science and Technology, (24) 113-128, Jan 31, 2017
A Trial Approach to Accelerated Numerical Solutions of Linear Equations Combined with Quadruple Precision Floating-point Arithmetic

23 27-32, Jun 1, 2015
A Highly Efficient Implementation of Multiple Precision Sparse Matrix-Vector Multiplication and Its Application to Product-type Krylov Subspace Methods

Tomonori Kouya

ArXiv, Nov 10, 2014
Strassenのアルゴリズムによる倍精度・多倍長正方行列積の高速化

幸谷智紀

静岡理工科大学紀要, 22 35-40, Jun 1, 2014
Practical Implementation of High-Order Multiple Precision Fully Implicit Runge-Kutta Methods with Step Size Control Using Embedded Formula

Tomonori Kouya

International Journal of Numerical Methods and Applications, Volume 9, Number 2, 2013, pp.85-108, Jun 11, 2013
Acceleration of Numerical Linear Computation by Using GPU and its Application to an Efficient Implementation of Runge-Kutta Methods

21 43-50, 2013
Performance Evaluation of Krylov Subspace Methods using Multiple Precision Sparse Matrix-Vector Multiplication

2012(25) 1-6, Mar 19, 2012
On the Backup and Open Access Web Server Systems for Web Design Special Program

20 143-146, 2012
The Internship Program in 2011, For Career Education

ISHIDA Takahiro, MAEKAWA Shoji, OZAWA Tetsuo, KIRIHARA Masayuki, KOYA Tomonori, SHINBA Yutaka, AOSHIMA Hideo, OHISHI Kazunori

20 107-118, 2012

Books and Other Publications

Python数値計算プログラミング

幸谷智紀

講談社, Mar, 2021 (ISBN: 9784065227350)
Multiple Precision Arithmetic Numerical Computation with GNU MP, MPFR and QD

KOUYA Tomonori

Nov, 2019 (ISBN: 9784627854918)
LAPACK/BLAS入門

幸谷智紀

森北出版, Dec 16, 2016 (ISBN: 4627848811)
基礎から身につける線形代数

松田健, 菅沼義昇, 幸谷智紀, 服部知美, 中田篤史 (Role: Joint author)

共立出版, Nov 21, 2014 (ISBN: 4320110986)
Programming with Multiple Precision (Studies in Computational Intelligence)

Elena Nikolaevskaya, Alexandr Khimich, Tamara Chistyakova

Springer, Apr 13, 2014 (ISBN: 364243374X)
情報数学の基礎 - 例からはじめてよくわかる

幸谷智紀, 國持良行 (Role: Joint author)

森北出版, Apr 16, 2011 (ISBN: 4627052715)
常微分方程式の数値解法I 基礎編(共訳)

(Role: Joint translator)

丸善出版, 2007 (ISBN: 9784621062821)