ISHII Hidemasa
Doctoral student at Nonlinear Physics Group
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ISHII Hidemasa
ISHII Hidemasa
Hi! I'm a doctoral student at Nonlinear Physics Group, the University of Tokyo. I work on constructing and analyzing coupled (random) dynamical systems models.
I have a strong interest in mathematical modeling of social phenomena that emerge through interaction among persons. My bachelor's thesis was related to behavioral economics and evolutionary game theory. I see a gap between mathematical works on social topics (e.g. social physics) and social sciences (e.g. sociology). I am particularly motivated to fill that gap.
I worked on the question ``Does social interaction enlarge / ameliorate inequality?'' by developing and anlyzing dynamical systems models in my master's thesis.
Education
Education
2023/04 -
Nonlinear Physics Group,
Doctoral Course, Department of Complexity Science and Engineering,
Graduate School of Frontier Sciences, The University of Tokyo
2021/04 - 2023/03
Nonlinear Physics Group,
Master Course, Department of Complexity Science and Engineering,
Graduate School of Frontier Sciences, The University of Tokyo
Thesis: Dynamical systems models for the influence of peers over university enrolment
2020/03 - 2021/03
Nishino Lab, Department of Systems Innovation,
Faculty of Engineering, The University of Tokyo
Employment / Fellowship / Teaching
Employment / Fellowship / Teaching
2025/06 - Project Researcher, Interfaculty Initiative in Information Studies, the University of Tokyo
2024/09 - 2025/02 Fellowship to external doctoral candidates, SFB1294 Data Assimilation
Biological Physics Group (Prof. Dr. Carsten Beta), Universität Potsdam (Germany)
2024/04 - 2026/03 Research Fellowship for Young Scientists (DC2), Japan Society for the Promotion of Science
2021/10 - 2024/03 Research Assistant for World-leading Innovative Graduate Study Program in Proactive Environmental Studies (WINGS-PES)
2023/04 - 2023/07 Teaching Assistant for "Nonlinear System Analyses II" at the University of Tokyo
2022/04 - 2022/07 Teaching Assistant for "Bio Information Processing" at the University of Tokyo
Awards
Awards
2025-06 Special monthly stipends (12 months)
Japan Society for the Promotion of Science
Award for excellent research achievement during the first year of Research Fellowship for Young Scientists (DC2)
2024-06 Exemption from Repayment for Graduate School Students with Particularly Outstanding Achievements (all)
Japan Student Services Organization
Award for outstanding academic achievement during the first year of PhD program
2023-06 Exemption from Repayment for Graduate School Students with Particularly Outstanding Achievements (half)
Japan Student Services Organization
Award for outstanding academic achievement during the master course
2023-03-23 Dean's Award for Outstanding Achievement (Master Course)
Graduate School of Frontier Sciences, the University of Tokyo
Award for outstanding academic achievement during the master course
2021-03-18 Hatakeyama award (link: Japanese)
the Japan Society of Mechanical Engineers
Award for outstanding academic achievement during undergraduate studies
Other Activities
Other Activities
2023/04 - 2024/08 Manager of UTalk (link: Japanese)
Interfaculty Initiative in Information Studies, the University of Tokyo
UTalk is a science café that takes place every month, where general participants talk casually with a researcher of UTokyo.
Manager is responsible for most administrative tasks of UTalk.
2023/04 Two lecturers in "Programming Course"
Kagaku Gijutsu Gakuen High School (Correspondence Course)
2019/04 - 2023/03 Assistant of UTalk (link: Japanese)
Interfaculty Initiative in Information Studies, the University of Tokyo
UTalk is a science café that takes place every month, where general participants talk casually with a researcher of UTokyo.
Assistant helps organize UTalk at the venue, takes pictures, and writes reports for the website on a shift basis.
2017 - 2019 Paid Volunteer at DO-IT Japan (link: Japanese)
Research Center for Advanced Science and Technology, the University of Tokyo
DO-IT Japan is a project that aims to realize inclusive society through advancing the success of children and youth with disabilities and illnesses.
I experienced both the assistance in activities of daily living for participants with disabilities and administrative works regarding the project.
2016/04 - 2019/03 Trilingual Program (TLP) German (link: Japanese)
the University of Tokyo
TLP is a special language course during undergraduate program, where students with a certain level of English proficiency learn a second foreign language (German, in my case) from scratch through additional language classes.
I participated in the short-term study abroad program of TLP German twice, once in Bonn (Feb. 2017) and once in Köln (Mar. 2019).
In Köln, I joined a German course for ERASMUS students at Universität zu Köln.
Skills
Skills
Languages
Languages
Japanese (Native)
English (Fluent)
2020/06 TOEFL iBT Score: 104
2020/02 Passed the exam for "National Government Licensed Guide Interpreter" (English)
In principle, I can work as a nationally certified travel guide in Japan (if I complete the administrative procedure).
German (Conversational)
2019/03 Goethe Zertifikat Deutsch B2
Programming
Programming
I like coding! I usually work with Docker / Apptainer containers.
Julia (intermediate)
Python (advanced)
R (advanced beginner)
Java / JavaScript / Google App Script (beginner)
Mathematica (advanced beginner)
LaTeX (advanced)
Typst (beginner)
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