Obayashi Ippei

オオバヤシイッペイ | Obayashi Ippei

Affiliation and department：
Job title： Professor
Homepage URL (1)： https://i-obayashi.info/

Research field (3)： Mathematical analysis , Applied mathematics and statistics , Basic mathematics

Research keywords (4)： Dynamical systems , Applied mathematics , Persistent homology , Topological data analysis

Research theme for competitive and other funds (7)：

2020 - 2025 Comprehensive analysis of hyper-ordered structures based on mathematics and informatics
2019 - 2025 Development of a new method for data science via the fusion of dynamical systems and computational topology
2019 - 2024 Determination of trigger sites for crack formation in aeronautical composite by combining X-ray microscopy and applied mathematics
2019 - 2023 パーシステントホモロジーによる位相高次構造抽出手法開発
2016 - 2020 ハイブリッド力学系としての二足歩行の吸引領域の形成メカニズムに注目した解析

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Papers (45)：

Yuta Shuseki, Shinji Kohara, Tomoaki Kaneko, Keitaro Sodeyama, Yohei Onodera, Chihiro Koyama, Atsunobu Masuno, Shunta Sasaki, Shohei Hatano, Motoki Shiga, et al. Atomic and Electronic Structure in MgO-SiO₂. The Journal of Physical Chemistry A. 2024
Alexandre Lira Foggiatto, Ryunosuke Nagaoka, Michiki Taniwaki, Takahiro Yamazaki, Takeshi Ogasawara, Ippei Obayashi, Yasuaki Hiraoka, Chiharu Mitsumata, Masato Kotsugi. Analysis of the excess loss in high-frequency magnetization process through machine learning and topological data analysis. IEEE Transactions on Magnetics. 2024. 1-1
Kota Okamoto, Nozomi Akashi, Ippei Obayashi, Kohei Nakajima, Hiroshi Kokubu, Kei Senda, Kazuo Tsuchiya, Shinya Aoi. Sharp changes in fractal basin of attraction in passive dynamic walking. Nonlinear Dynamics. 2023
Motoki Shiga, Ippei Obayashi. Structural-Order Analysis Based on Applied Mathematics. The Materials Research Society Series. 2023. 265-288
Taniwaki, Michiki, Alexandre, Foggiatto Lira, Mitsumata, Chiharu, Yamazaki, Takahiro, Obayashi, Ippei, Hiraoka, Yasuaki, Igarashi, Yasuhiko, Mizutori, Yuta, Hossein, Sepehri Amin, et al. Analysis of Magnetization Reversal Process of Non-Oriented Electromagnetic Steel Sheet by Extended Landau Free Energy Model. IEEE. 2023

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MISC (14)：

大林一平. ソフトウェア紹介:パーシステントホモロジーに基づくデータ解析ソフトウェア「HomCloud」による材料科学データ解析. 分子シミュレーション学会学会誌アンサンブル. 2024. 26. 1. 83-90
南谷英美, 志賀拓麿, 柏木誠, 大林一平. アモルファス材料の熱伝導率とトポロジカルデータ解析. 固体物理. 2023. 58. 6
志賀元紀, 森田秀利, 大林一平. 数理情報科学を用いた構造秩序解析. セラミックス. 2023. 58. 527-530
大林一平. パーシステントホモロジーの optimal volume と stable volume について. 京都大学数理解析研究所講究録. 2021. 2209
大林一平. パーシステントホモロジーに基づくデータ解析パッケージHomCloudの紹介. 京都大学数理解析研究所講究録. 2020. 2166

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Books (2)：

Lectures and oral presentations (48)：

A data analysis framework with linear models and persistent homology
(TDA Week 2023 2023)
位相的データ解析 - 理論,ソフトウェア,応用
(Topology Meets Data 2023)
パーシステントホモロジーによるデータ解析 - 理論,応用,ソフトウェア
(JST数学関連3領域連携WS「情報科学と拓く新しい数理科学」 2022)
Ippei Obayashi. Stable volumes for persistent homology
(TDA Week 2022)
3D Data Analysis of X-Ray CT Images with Persistent Homology and Nonnegative Matrix Factorization
(Perspectives on Artificial Intelligence and Machine Learning in Materials Science 2022)

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Education (3)：

Professional career (1)：

Work history (5)：

2021/04 - 現在 Okayama University Center for Artificial Intelligence and Mathematical Data Science Professor
2018/06 - 2021/03 RIKEN RIKEN Center for advanced intelligence Research Scientist
2018/04 - 2018/05 Tohoku University Advanced Institute for Materials Research
2015/04 - 2018/03 Tohoku University Advanced Institute for Materials Research Assistant Professor
2010/04 - 2015/03 Kyoto University Graduate School of Science Postdoctral researcher

Committee career (1)：

Awards (6)：

2020/06 - The Ceramic Society of Japan Award of the Outstanding Papers Published in the JCS-JAPAN in 2019 Understanding diffraction patterns of glassy, liquid and amorphous materials via persistent homology analyses
2020/03 - 理化学研究所第11回桜舞賞研究奨励賞 Development of topological data analysis software and its industrial applications
2017/09 - 日本応用数理学会日本応用数理学会 2017 年度ベストオーサー賞
2017/09 - 日本応用数理学会日本応用数理学会 2017 年度論文賞
2017/09 - 第6回藤原洋数理科学賞奨励賞

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Association Membership(s) (2)：

The Japan Society for Industrial and Applied Mathematics , THE MATHEMATICAL SOCIETY OF JAPAN

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