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Yamakawa, Yuya
Graduate School of Informatics, Department of Informatics Assistant Professor
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Last Updated :2025/05/27
Basic Information
Faculty
Academic Degree
ID,URL
J-Global ID
Researcher number
00837354
researchmap URL
list
Last Updated :2025/05/27
Research
Research Interests
Research Areas
- Informatics, Mathematical informatics
- Natural sciences, Applied mathematics and statistics
- Natural sciences, Basic mathematics
Papers
- Convergence analysis of a regularized Newton method with generalized regularization terms for unconstrained convex optimization problemsYuya Yamakawa; Nobuo YamashitaApplied Mathematics and Computation, Apr. 2025, Peer-reviewed
- Convergence properties of Levenberg–Marquardt methods with generalized regularization termsShumpei Ariizumi; Yuya Yamakawa; Nobuo YamashitaApplied Mathematics and Computation, 15 Feb. 2024, Peer-reviewed
- An equivalent nonlinear optimization model with triangular low-rank factorization for semidefinite programsYuya Yamakawa; Tetsuya Ikegami; Ellen H. Fukuda; Nobuo YamashitaOptimization Methods and Software, 10 Jul. 2023, Peer-reviewed
- A Stabilized Sequential Quadratic Programming Method for Optimization Problems in Function SpacesYuya YamakawaNumerical Functional Analysis and Optimization, 27 Apr. 2023, Peer-reviewed, Lead author
- A revised sequential quadratic semidefinite programming method for nonlinear semidefinite optimizationKosuke Okabe; Yuya Yamakawa; Ellen Hidemi FukudaJournal of Industrial and Management Optimization, Oct. 2023, Peer-reviewed
- Distributionally robust expected residual minimization for stochastic variational inequality problemsAtsushi Hori; Yuya Yamakawa; Nobuo YamashitaOptimization Methods and Software, 06 Feb. 2023, Peer-reviewed
- A stabilized sequential quadratic semidefinite programming method for degenerate nonlinear semidefinite programsYuya Yamakawa; Takayuki OkunoComputational 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 methodYuya Yamakawa; Hiroyuki SatoComputational Optimization and Applications, 21 Jan. 2022, Peer-reviewed, Lead author
- A block coordinate descent method for a maximum likelihood estimation problems of mixture distributionsYuya Yamakawa; Nobuo YamashitaPacific Journal of Optimization, Oct. 2015, Peer-reviewed, Lead author
- A differentiable merit function for shifted perturbed Karush-Kuhn-Tucker conditions of the nonlinear semidefinite programmingYuya Yamakawa; Nobuo YamashitaPacific 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 convergenceYuya YamakawaJournal of Operations Research Society of Japan, Dec. 2014, Peer-reviewed, Lead author
Misc.
- 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 ScientistsBasic Section 60020:Mathematical informatics-relatedKyoto 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;局所収束性;二次収束性;超一次収束性;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 applicationsGrant-in-Aid for Scientific Research (C)Basic Section 60020:Mathematical informatics-relatedKyoto University山下 信雄From 01 Apr. 2021, To 31 Mar. 2025, Granted双対問題;均衡問題;数理最適化;非線形方程式;非線形半正定値計画;連続最適化
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Last Updated :2025/05/27
Education
Teaching subject(s)
- From 01 Apr. 2024, To 31 Mar. 2025Exercise on Applied Mathematics and Physics9090, Spring, Faculty of Engineering, 2
- From 01 Apr. 2024, To 31 Mar. 2025Applied Mathematics and Physics Laboratory9089, Fall, Faculty of Engineering, 2
- From 01 Apr. 2024, To 31 Mar. 2025Seminar on Applied Mathematics and Physics9074, Fall, Faculty of Engineering, 2
- From 01 Apr. 2024, To 31 Mar. 2025Applied Mathematics and Physics Laboratory9125, Fall, Faculty of Engineering, 4
- From 01 Apr. 2023, To 31 Mar. 2024Seminar on Applied Mathematics and Physics9074, Fall, Faculty of Engineering, 2
- From 01 Apr. 2023, To 31 Mar. 2024Applied Mathematics and Physics Laboratory9089, Fall, Faculty of Engineering, 2
- From 01 Apr. 2023, To 31 Mar. 2024Applied Mathematics and Physics Laboratory9125, Fall, Faculty of Engineering, 4
- From 01 Apr. 2022, To 31 Mar. 2023Applied Mathematics and Physics Laboratory9125, Fall, Faculty of Engineering, 4
- From 01 Apr. 2022, To 31 Mar. 2023Applied Mathematics and Physics Laboratory9089, Fall, Faculty of Engineering, 2
- From Apr. 2020, To Mar. 2021Seminar on Applied Mathematics and PhysicsFall, 工学部
- From Apr. 2021, To Mar. 2022Applied Mathematics and Physics LaboratoryFall, 工学部
- From Apr. 2021, To Mar. 2022Applied Mathematics and Physics LaboratoryFall, 工学部
- From Apr. 2021, To Mar. 2022Seminar on Applied Mathematics and PhysicsFall, 工学部
