J-GLOBAL         Last updated: Nov 22, 2018 at 14:35
Hiroshima Shudo University
The Faculty of Commercial Sciences, Department of Business Administration
Job title
Doctor of Engineering(Osaka University)

Research Areas


Academic & Professional Experience

Koshien University, Lecturer
Osaka Kyoiku University, Part-time Lecturer
Fukui University, Associate Professor
Kanazawa University Graduate Schools, Part-time Lecturer


Graduate School, Division of Engineering Science, Osaka University
Faculty of Education, University of Fukui

Awards & Honors

May 2010
IEEE 2010 CEC Competition on Real-Parameter Optimization, IEEE CI Society
Winner: TAKAHAMA Tetsuyuki, SAKAI Setsuko
Jul 2006
2006 IEEE CEC Competition Program Award (Nonlinear Programming), IEEE
Winner: TAKAHAM Tetsuyuki, SAKAI Setsuko

Published Papers

Particle Swarm Optimization with the Velocity Updating Rule According to an Oblique Coordinate System
Tetsuyuki Takahama and Setsuko Sakai
Proceedings of the 2nd International Symposium on Swarm Behavior and Bio-Inspired Robotics   1 70-77   Oct 2017   [Refereed]
Optimization problems have some characteristics: Dependency among decision variables such as separable or
non-separable problems, and landscape modality such as unimodal or multimodal problems. Particle swarm optimization (PSO) has been shown powe...
Tetsuyuki Takahama, Setsuko Sakai
Proceedings of SICE Annual Conference 2017   1 1147-1152   Sep 2017   [Refereed]
In a natural population, when the main population is destroyed by catastrophes, the few extreme individuals gain significance and will insure the survival of the population. In this study, the extreme individuals are paid attention to. The best in...
An Adaptive Differential Evolution with Learning Parameters According to Groups Defined by the Rank of Objective Values
Tetsuyuki Takahama and Setsuko Sakai
Proceedings of the Eighth International Conference on Swarm Intelligence   1(1) 411-419   Jul 2017   [Refereed]
Differential Evolution (DE) has been successfully applied to various optimization problems. The performance of DE is affected by algorithm parameters such as a scaling factor F and a crossover rate CR. Many studies have been done to control the p...
Tetsuyuki Takahama, Setsuko Sakai, Jun-ichi Kuashida and Akira Hara
Artificial Life and Robotics   21(4) 423-433   Dec 2016   [Refereed]
Tetsuyuki Takahama, Setsuko Sakai
Proceedings of the 2016 IEEE Congress on Evolutionary Computation   1 48-55   Jul 2016   [Refereed]


Structural Optimization by Genetic Algorithm with Degeneration (GA^d) (jointly authored)
The Transactions of the Institute of Electronics, Information and Communication Engineers   Vol.J86-D-I, No.3, pp.140-149    2003
Constrained optimization by alpha constrained genetic algorithm (alphaGA) (jointly authored)
The Transactions of the Institute of Electronics, Information and Communication Engineers   Vol.J86-D-I, No.4, pp.198-207    2003
Learning Structure of RBF-Fuzzy Rule Bases by Degeneration (jointly authored)
Proc. of 2003 International Conference on Fuzzy Information Processing   Vol.2, pp.611-616    2003
Structural Learning of RBF-Fuzzy Rule Bases Based on Information Criteria and Degeneration (jointly authored)
Proc. of 2003 IEEE International Conference on Systems, Man, and Cybernetics   pp.2581-2586    2003
Optimization of Neural Network by Genetic Algorithm with Damaged Genes (jointly authoerd)
Proc. of the 9th International Conference on Neural Information Processing (ICONIP'02)   Vol.3, pp.1211-1215    2002

Books etc

A Study on Selecting an Oblique Coordinate System for Rotation-Invariant Blend Crossover in a Real-Coded Genetic Algorithm
Mar 2018   ISBN:978-4-7985-0229-8
A Comparative Study on Grouping Methods for an Adaptive Differential Evolutuion
Setsuko Sakai, Tetsuyuki Takahama (Part:Joint Work)
Mar 2017   ISBN:978-4-7985-0206-9
A Comparative Study on Detecting Ridge Structures for Population-Based Optimization Algorithms
Kyushu University Press   Feb 2016   ISBN:978-4-7985-0179-6
New Solutions in Legal Informatics, Economic Sciences and Mathematics
Kyushu University Press   Mar 2015   ISBN:978-4-7985-0152-9
A Comparative Study on Estimation Methods of Landscape Modality for Evolutionary Algorithms
Mar 2014   ISBN:978-4-7985-0125-3

Research Grants & Projects

Game Theory with Incomplete Information
Mathematical Programming
Fuzzy Optimization Theory Optimization