Waki Hayato

ワキハヤト | Waki Hayato

Affiliation and department：
Homepage URL (1)： http://sites.google.com/site/hayatowaki/Home

Research field (2)： Mathematical informatics , Applied mathematics and statistics

Research keywords (5)： Optimization Theory , 錐計画問題 , 半正定値計画問題 , Conic programming problem , Semidefinite programming problem

Research theme for competitive and other funds (14)：

2021 - 2026 Stability Analysis and Optimal Synthesis of Recurrent Neural Networks by Conic Programming
2020 - 2023 Optimization modeling via convex optimization
2017 - 2020 Duality on Optimization and Control Theories
2016 - 2020 Evaluation of the complexity of solving LWE problems and establishment of setting method of secure parameters for lattice-based homomorphic encryption
2014 - 2018 Determinantal processes and their generalizations

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Papers (38)：

Hiroyuki Ochiai, Yoshiyuki Sekiguchi, Hayato Waki. Exact convergence rates of alternating projections for nontransversal intersections. Japan Journal of Industrial and Applied Mathematics. 2023
Hayato Waki, Yoshio Ebihara, Noboru Sebe. Reduction of SISO H-infinity output feedback control problem. Linear Algebra and its Applications. 2021. 610. 321-378
Yoshiyuki Sekiguchi, Hayato Waki. Perturbation Analysis of Singular Semidefinite Programs and Its Applications to Control Problems. Journal of Optimization Theory and Applications. 2020
Hayato Waki, Noboru Sebe. Characterization of the dual problem of linear matrix inequality for H-infinity output feedback control problem via facial reduction. Mathematics of Control, Signals, and Systems. 2020
Yoshio Ebihara, Noboru Sebe, Hayato Waki. On Gain-Scheduled State-Feedback Controller Synthesis With Quadratic Stability Condition. IEEE Control System Letters. 2020. 4. 3. 662-667

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Lectures and oral presentations (47)：

H∞フィードバック制御問題の正定値解について
(第6回制御部門マルチシンポジウム 2019)
半正定値計画問題のプログラム検証への応用
(第61回自動制御連合講演会 2018)
Facial reduction for H-infinity state feedback control
(International Workshop on "Control and Optimization" 2018)
Ill-posed semidefinite program
(Joint Mini-workshop between KU and NTNU 2018)
Strong feasibility of the dual problem of linear matrix inequality for H-infinity output feedback control problem
(2018 SICE International Symposium on Control Systems (SICE ISCS) 2018)

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Education (2)：

2002 - 2007 Tokyo Institute of Technology Graduate School of Information Science and Engineering Department of Mathematical and Computing Sciences
1998 - 2002 Tokyo Institute of Technology Department of Science Information Science

Professional career (1)：

Doctor of Science (Tokyo Institute of Technology)

Work history (5)：

2012/05 - 現在 Kyushu University Institute of Mathematics for Industry Associate Professor
2009/09 - 2012/04 The University of Electro-Communications Assistant Professor
2008/04 - 2009/08 日本学術振興会日本学術振興会特別研究員 PD
2007/04 - 2008/03 日本学術振興会日本学術振興会特別研究員 PD
2006/04 - 2007/03 日本学術振興会日本学術振興会特別研究員 DC2

Awards (3)：

2023/04 - Best Presentation Award of the Multi-Symposium on Control Systems: Fundamental Area
2021/10 - The Asian Control Association, 4th Kimura Best Paper Award of Asian Journal of Control
2011/09 - 日本オペレーションズ・リサーチ学会研究賞奨励賞

Association Membership(s) (7)：

応用数理学会 , 日本オペレーションズ・リサーチ学会 , Society for Industrial and Applied Mathematics , The Japan Society for Industrial and Applied Mathematics , Mathematical Programming Society , Institute For Operations Research And The Management Scineces , The Operations Research Society of Japan

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