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J-GLOBAL ID：200901011081479356   Update date: Feb. 01, 2024

Tatsumi Keiji

タツミ ケイジ | Tatsumi Keiji
Affiliation and department：
Osaka University

About Osaka University


Job title： Associate Professor
Research field  (3)： Soft computing ,  Control and systems engineering ,  Intelligent informatics
Research keywords  (6)： サポートべクトルマシン ,  大域的最適化 ,  カオスダイナミクス ,  Support vector machine ,  Global optimization ,  Chaos dynamics
Research theme for competitive and other funds  (6)：
  • 2020 - 2023 Study on combination of mathematical programming and evolutionary multi-point methods
  • 2017 - 2020 大域的探索強化と局所解近傍の形状情報を用いる摂動型カオス進化計算最適化手法
  • 2012 - 2016 多クラス識別に対する幾何的マージン最大化ソフトマージンサポートベクトルマシン
  • 2009 - 2012 カオスダイナミクスを用いたパーティクルスォーム最適化法
  • 2005 - 2007 カオスダイナミクスを用いた大域的最適化問題の解法
Show all
Papers (86)：
  • Keiji Tatsumi, Nao Kinoshita. Shift-Invariant Grey Wolf Optimizer Exploiting Reference Points and Random Selection of Step-Sizes. Proc. of 2022 SICE Annual Conference. 2022
  • Keiji Tatsumi, Shunsuke Tsujioka, Ryota Masui, Yoshifumi Kusunoki, Yeboon Yun. Determination of reinforcement degrees in constructing large-scale structures by using multiclass support vector machines. Knowledge-Based Systems. 2022. 249. 108807-108807
  • Yoshifumi Kusunoki, Katsuhiko Kojima, Keiji Tatsumi. Transductive Learning Based on Low-Rank Representation with Convex Constraints. Lecture Notes in Computer Science. 2022. 291-301
  • Keiji Tatsumi, Ryota Masui, Shunsuke Tsujioka, Yoshifumi Kusunoki, Yeboon Yun. Multiclass Support Vector Machines for Determination of Reinforcement Degree in Constructing Large-scale Structures Based on Data Characteristics. Proc. of 2021 IEEE International Conference on Systems, Man, and Cybernetics (SMC). 2021
  • Katsuhiko Kojima, Yoshifumi Kusunoki, Keiji Tatsumi. Manifold Learning with Intrinsic Distance Estimation Using Kernelized Linear Model for Metric Tensors. Proceedings of IEEE SMC 2020. 2020
ｍore...
MISC (30)：
  • Invited Talk : SAR A/D Converter Using Stochastic Conversion and Machine-Learning Error Correction. 2017. 117. 167. 95-100
  • Invited Talk : SAR A/D Converter Using Stochastic Conversion and Machine-Learning Error Correction. 2017. 41. 25. 95-100
  • A Regularizer Tuning Sparsity and Its Application to Regression Analysis. 2017. 61. 4p
  • An approximation method for a multiobjective SVM maximizing geometric margins for multiclass classification problems. 2017. 61. 3p
  • Particle swarm optimization : A perturbation-based chaotic particle swarm optimization using an intensive search in the direction between best solutions. 2016. 60. 4p
ｍore...
Patents (1)：
  • A/D変換装置
Books (1)：
  • 数理工学事典, 茨木俊秀, 片山徹, 藤重悟監
    朝倉出版 2011
Lectures and oral presentations  (10)：
  • 大規模構造物建設時の補強度合判別問題への機械学習の適用
    (システム制御情報学会研究発表 講演会(SCI’21) 2021)
  • Multiclass Support Vector Machine Classifying the Degree of Reinforcement in Construction of a Large-scale Structure
    (The International Symposium on Integrated Uncertainty in Knowledge Modelling and Decision Making (IUKM) 2020 2020)
  • A Complexity Reduction Method for the Multiobjective Multiclass Support Vector Machine
    (IFORS 2014 2014)
  • Multiclass Support Vector Machines Based on Multiobjective Optimization
    (2012)
  • A Perturbation Based Chaotic Particle Swarm Optimization Using Differential Information and Multi-type Swarms
    (Proceedings of SJOM2008 2008)
ｍore...
Works (2)：
  • パススケジュール数理最適化の研究
    2008 - 2009
  • 圧延・精整最適スケジューリング
    2005 - 2006
Education (4)：
  • 1996 - 1998 Kyoto University
  • 1995 - 1996 Nara Institute of Science and Technology Graduate School of Information Science
  • 1993 - 1995 Nara Institute of Science and Technology Graduate School of Information Science
  • 1989 - 1993 Kyoto University Faculty of Engineering
Professional career (2)：
  • (BLANK) (Nara Institute of Science and Technology)
  • 博士(情報学) (京都大学)
Work history (3)：
  • 2009/05 - 現在 Osaka University Division of Electrical, Electronic, and Information Engineering, Graduate School of Engineering Associate Professor
  • 2007/04 - 2009/04 Osaka University Division of Electrical, Electronic, and Information Engineering, Graduate School of Engineering Assistant Professor
  • 1998/04 - 2007/03 Osaka University
Committee career (1)：
  • 2005 - システム制御情報学会 事業委員
Awards (1)：
  • 1996 - システム制御情報学会賞奨励賞
Association Membership(s) (3)：
システム制御情報学会 ,  日本オペレーションズ・リサーチ学会 ,  IEEE
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