ITO Masaru

イトウマサル | ITO Masaru

Affiliation and department：
Job title： Assistant Professor
Homepage URL (2)： http://trout.math.cst.nihon-u.ac.jp/~ito.m/index-jp.html , http://trout.math.cst.nihon-u.ac.jp/~ito.m/

Research field (1)： Mathematical informatics

Research keywords (3)： First-Order Methods , Nonlinear Optimization , Mathematical Programming

Research theme for competitive and other funds (3)：

2021 - 2025 大規模最適化問題に対する自動適応性を持つ一次法の確立
2017 - 2020 凸最適化問題に対する問題構造を利用した効率的な劣勾配アルゴリズムの構築
2014 - 2018 Accelerated (sub)gradient methods for large-scale convex optimization problems - with emphasis in the theoretical aspects of the implementation and its applications -

Papers (12)：

Masaru Ito, Bruno F. Lourenço. Automorphisms of rank-one generated hyperbolicity cones and their derivative relaxations. SIAM Journal on Applied Algebra and Geometry. 2023. 7. 1. 236-263
Masaru Ito, Zhaosong Lu, Chuan He. A parameter-free conditional gradient method for composite minimization under Hölder condition. Journal of Machine Learning Research. 2023. 24. 166. 1-34
Masaru Ito and Mituhiro Fukuda. Nearly optimal first-order methods for convex optimization under gradient norm measure: An adaptive regularization approach. Journal of Optimization Theory and Applications. 2021. 188. 770-804
伊藤勝, Bruno F. Lourenço. p次錐の幾何学. オペレーションズ・リサーチ. 2020. 65. 12. 668-674
Koichiro Akiyama, Shuhei Nakamura, Masaru Ito, and Noriko Hirata-Kohno. A key exchange protocol relying on polynomial maps. International Journal of Mathematics for Industry. 2019

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MISC (1)：

Lectures and oral presentations (34)：

近似停留点に対する exact penalty と exact penalty method の反復計算量解析
(日本オペレーションズ・リサーチ学会 2024年春季研究発表会 2024)
近似停留点に対するexact penaltyとペナルティ関数法の反復計算量解析
(日本応用数理学会第20回研究部会連合発表会 2024)
Adaptive gradient-based method for convex optimization problems under error bounds
(10th International Congress on Industrial and Applied Mathematics (ICIAM2023) 2023)
Optimization problems with eigenvalue constraints
(SIAM Conference on Optimization (OP23) 2023)
最適化問題に対する一次法とその反復計算量の理論
(日本応用数理学会第14回三部会連携「応用数理セミナー」 2022)

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Education (3)：

2013 - 2016 Tokyo Institute of Technology Graduate School of Information Science and Engineering Department of Mathematical and Computing Sciences
2011 - 2013 Tokyo Institute of Technology Graduate School of Information Science and Engineering Department of Mathematical and Computing Sciences
2007 - 2011 Nihon University College of Science and Technology Department of Mathematics

Professional career (2)：

Work history (3)：

2022/04 - Nihon University Department of Mathematics, College of Science and Technology Assistant Professor
2016/04 - 2022/03 Nihon University Department of Mathematics, College of Science and Technology Research Assistant
2016/04/01 - Nihon University Department of Mathematics, College of Science and Technology Research Assistant

Committee career (5)：

Awards (3)：

2021/09 - 日本オペレーションズ・リサーチ学会第11回日本オペレーションズ・リサーチ学会研究賞奨励賞
2015/07 - 日本オペレーションズ・リサーチ学会研究部会「最適化の基盤とフロンティア」最優秀発表賞凸最適化問題に対するヘルダー条件のもとでの最適な劣勾配アルゴリズムの提案
2015/03 - 日本オペレーションズ・リサーチ学会学生優秀発表賞凸最適化問題に対するヘルダー条件のもとでの最適な劣勾配アルゴリズムの提案

Association Membership(s) (3)：

The Japan Society for Industrial and Applied Mathematics , The Mathematical Society of Japan , The Operations Research Society of Japan

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