NISHIDA Yuki

ニシダユウキ | NISHIDA Yuki

Affiliation and department：
Job title： Junior Associate Professor
Homepage URL (2)： https://eureka.kpu.ac.jp/~y-nishida/index.html , https://eureka.kpu.ac.jp/~y-nishida/english.html

Research field (2)： Applied mathematics and statistics , Basic mathematics

Research keywords (10)： max-plus algbera , Combinatorial Optimization , cellular automata , Algebraic Graph Theory , Discrete Mathematical Modeling , tropical algebra , graph theory , min-plus algebra , Petri net , invariant theory

Research theme for competitive and other funds (3)：

2022 - 2026 Diagonalization of max-plus matrices and ite applications
2021 - 2024 Fuzzification of three-state three-neighbor cellular automata and their dynamics
2019 - 2020 Construction of Max-Plus analogues of eigenvalues and eigenvectors

Papers (18)：

Kensuke Kitai, Yuki Nishida, Yoshihide Watanabe. Max-plus Algebraic Description of Evolutions of Weighted Timed Event Graphs. Theory of Computing Systems. 2024. 68. 5. 1427-1441
Yasutaka Ooga, Yuki Nishida, Yoshihide Watanabe. On max-plus two-sided linear systems whose solution sets are min-plus linear. Linear Algebra and its Applications. 2024. 694. 283-306
Yuki Nishida, Sennosuke Watanabe, Yoshihide Watanabe. Similarity and isospectral transformation of max-plus matrices. RIMS Kôkyûroku Bessatsu. 2024. B96. 149-167
Yuki Nishida, Sennosuke Watanabe, Yoshihide Watanabe. Triangulation of diagonally dominant min-plus matrices. Discrete Event Dynamic Systems. 2024. 34. 297-332
Yuki Nishida, Sennosuke Watanabe, Yoshihide Watanabe. Independence and orthogonality of algebraic eigenvectors over the max-plus algebra. Linear and Multilinear Algebra. 2024

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MISC (2)：

Yuki Nishida, Koki Yamasaki, Sennosuke Watanabe, Akiko Fukuda, Yoshihide Watanabe. Convergence of 3-state 3-neighbor complete number-conserving fuzzy cellular automata. Reports of Institute for Mathematics and Computer Science, Tsuda University. 2021. 42. 109-119
Masaaki Amino, Yuki Nishida, Yoshihide Watanabe. Criteria for recoverability of rectangular polyhedra in terms of linear programming. The Harris science review of Doshisha University. 2019. 60. 2. 79-86

Lectures and oral presentations (63)：

Supertropical代数上の行列の特異値分解に対する組合せ論的アルゴリズム
(日本応用数理学会2024年度年会 2024)
Max-plus優固有ベクトルの数理最適化の視点からの特徴づけ
(日本オペレーションズ・リサーチ学会 2024年秋季研究発表会 2024)
Max-plus代数上の固有値問題 -グラフを歩き回ると何が見える?-
(第22回計算数学研究会 2024)
ナーススケジューリング問題における目的関数を動的に変更するヒューリスティックアルゴリズムの提案
(研究集会「最適化:モデリングとアルゴリズム」 2024)
粒子数保存する2階2値3近傍セルオートマトンの多項式表現
(日本応用数理学会第20回研究部会連合発表会 2024)

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Education (3)：

2018 - 2021 Doshisha University Graduate School of Science and Engineering Science of Environment and Mathematical Modeling
2016 - 2018 Doshisha University Graduate School of Science and Engineering Science of Environment and Mathematical Modeling
2012 - 2016 Doshisha University Faculty of Science and Engineering Department of Mathematical Sciences

Professional career (1)：

Doctor of Philosophy in Science (Doshisha University)

Work history (8)：

2024/04 - 現在 Kyoto Prefectural University Faculty of Science and Technology, Department of Science, Technology and Informatics Junior Associate Professor
2024/04 - 現在 Kyoto Prefectural University Graduate School of Life and Environmental Sciences (MC and DC) Division of Environmental Sciences Course Junior Associate Professor
2022/04 - 2024/03 Tokyo University of Science Faculty of Engineering Department of Information and Computer Technology Assistant Professor
2021/04 - 2022/03 Doshisha University Office for Research Initiatives and Development Research Associate
2020/04 - 2021/03 Doshisha University Graduate School of Science and Engineering Research Assistant

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Committee career (1)：

2023/10 - 現在日本応用数理学会総務委員会委員

Awards (6)：

2023/06 - The Japan Society for Industrial and Applied Mathematics Best presentation award for young researchers Upper triangulation of diagonally dominant min-plus matrices and its application to traffic flows
2021/10 - 7th International Conference on Mathematics : Pure, Applied, and Computation (ICoMPAC2021) Best Paper Award Traffic flow models with two kinds of vehicles in terms of the vector-valued cellular automata and their fuzzification
2021/09 - the 2021 JSIAM Annual Meeting Best Poster Award
2020/11 - "From Nonlinear Waves to Integrable Systems", Online Conference, Institute for Mathematics and Computer Science, Tsuda University Best Poster Award Convergence of 3-state 3-neighbor complete number-conserving fuzzy cellular automata
2019/09 - the 2019 JSIAM Annual Meeting Best poster award

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Association Membership(s) (3)：

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

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