| 2021 | CEC | An Adaptive Differential Evolution Algorithm Utilizing Failure Information and Success Information. | Tetsuyuki Takahama, Setsuko Sakai |
| 2020 | SMC | Maintaining Population Diversity in Deterministic Geometric Semantic Genetic Programming by ϵ-Lexicase Selection. | Akira Hara, Jun-ichi Kushida, Tetsuyuki Takahama |
| 2019 | CEC | An Equivalent Penalty Coefficient Method: An Adaptive Penalty Approach for Population-Based Constrained Optimization. | Tetsuyuki Takahama, Setsuko Sakai |
| 2019 | GECCO | L-SHADE with an adaptive penalty method of balancing the objective value and the constraint violation. | Takeshi Kawachi, Jun-ichi Kushida, Akira Hara, Tetsuyuki Takahama |
| 2019 | SMC | Time Series Prediction Using Deterministic Geometric Semantic Genetic Programming. | Akira Hara, Jun-ichi Kushida, Tetsuyuki Takahama |
| 2018 | SMC | Artificial Bee Colony Programming Using Semantic Control Crossover. | Akira Hara, Jun-ichi Kushida, Ryota Takemoto, Tetsuyuki Takahama |
| 2018 | SMC | Cartesian Genetic Programming with Module Mutation for Symbolic Regression. | Jun-ichi Kushida, Akira Hara, Tetsuyuki Takahama |
| 2017 | SMC | The influence of generation alternation model on search performance in deterministic geometric semantic genetic programming. | Akira Hara, Jun-ichi Kushida, Takamichi Yamagata, Tetsuyuki Takahama |
| 2016 | CEC | An adaptive differential evolution with adaptive archive selection and hill-valley detection. | Tetsuyuki Takahama, Setsuko Sakai |
| 2016 | SMC | Deterministic Geometric Semantic Genetic Programming with Optimal Mate Selection. | Akira Hara, Jun-ichi Kushida, Tetsuyuki Takahama |
| 2015 | CEC | Rank-based differential evolution with multiple mutation strategies for large scale global optimization. | Jun-ichi Kushida, Akira Hara, Tetsuyuki Takahama |
| 2015 | SMC | Genetic Programming Using the Best Individuals of Genealogies for Maintaining Population Diversity. | Akira Hara, Takuya Mototsuka, Jun-ichi Kushida, Tetsuyuki Takahama |
| 2014 | SMC | Rank-based Semantic Control Crossover in Genetic Programming. | Akira Hara, Jun-ichi Kushida, Takeyuki Nobuta, Tetsuyuki Takahama |
| 2013 | CEC | Efficient constrained optimization by the ε constrained differential evolution with rough approximation using kernel regression. | Tetsuyuki Takahama, Setsuko Sakai |
| 2013 | SMC | Neuroevolution by Particle Swarm Optimization with Adaptive Input Selection for Controlling Platform-Game Agent. | Akira Hara, Jun-ichi Kushida, Koji Kitao, Tetsuyuki Takahama |
| 2012 | CEC | Large scale optimization by differential evolution with landscape modality detection and a diversity archive. | Tetsuyuki Takahama, Setsuko Sakai |
| 2012 | CEC | Efficient Constrained Optimization by the ε Constrained Rank-Based Differential Evolution. | Tetsuyuki Takahama, Setsuko Sakai |
| 2012 | CEC | Differential evolution with dynamic strategy and parameter selection by detecting landscape modality. | Tetsuyuki Takahama, Setsuko Sakai |
| 2012 | SMC | New crossover operator based on semantic distance between subtrees in Genetic Programming. | Akira Hara, Yoshimasa Ueno, Tetsuyuki Takahama |
| 2011 | CEC | Efficient nonlinear optimization by differential evolution with a rotation-invariant local sampling operation. | Tetsuyuki Takahama, Setsuko Sakai |
| 2011 | SMC | Cartesian Ant Programming. | Akira Hara, Manabu Watanabe, Tetsuyuki Takahama |
| 2010 | CEC | Ant Colony Optimization using exploratory ants for constructing partial solutions. | Akira Hara, Syuhei Matsushima, Takumi Ichimura, Tetsuyuki Takahama |
| 2010 | CEC | Constrained optimization by the epsilon constrained differential evolution with an archive and gradient-based mutation. | Tetsuyuki Takahama, Setsuko Sakai |
| 2010 | CEC | Efficient constrained optimization by the epsilon constrained adaptive differential evolution. | Tetsuyuki Takahama, Setsuko Sakai |
| 2009 | CEC | A comparative study on kernel smoothers in Differential Evolution with estimated comparison method for reducing function evaluations. | Tetsuyuki Takahama, Setsuko Sakai |
| 2009 | SMC | Human Communication Network Based on the Classification Results of Personal Preferences by Using Self-Organizing Map. | Takumi Ichimura, Azusa Yamasaki, Akira Hara, Tetsuyuki Takahama |
| 2008 | CEC | Reducing function evaluations in Differential Evolution using rough approximation-based comparison. | Tetsuyuki Takahama, Setsuko Sakai |
| 2007 | CEC | Species-based differential evolution with switching search strategies for multimodal function optimization. | Miyuki Shibasaka, Akira Hara, Takumi Ichimura, Tetsuyuki Takahama |
| 2007 | CEC | Structural learning of neural networks by differential evolution with degeneration using mappings. | Tetsuyuki Takahama, Setsuko Sakai, Akira Hara, Noriyuki Iwane |
| 2006 | CEC | Effective Diversification of Ant-Based Search Using Colony Fission and Extinction. | Akira Hara, Takumi Ichimura, Nobuyuki Fujita, Tetsuyuki Takahama |
| 2006 | CEC | Constrained Optimization by the ε Constrained Differential Evolution with Gradient-Based Mutation and Feasible Elites. | Tetsuyuki Takahama, Setsuko Sakai |
| 2006 | SMC | A Proposal of Interactive Genetic Network Programming by Fuzzy Structural Modeling. | Takumi Ichimura, Kazuya Sakaguchi, Akira Hara, Tetsuyuki Takahama |
| 2006 | SMC | Solving Nonlinear Constrained Optimization Problems by the ε Constrained Differential Evolution. | Tetsuyuki Takahama, Setsuko Sakai, Noriyuki Iwane |
| 2005 | KES | Extraction of Risk Factors by Multi-agent Voting Model Using Automatically Defined Groups. | Akira Hara, Takumi Ichimura, Tetsuyuki Takahama, Yoshinori Isomichi |
| 2005 | KES | Effect of Direct Communication in Ant System. | Akira Hara, Takumi Ichimura, Tetsuyuki Takahama, Yoshinori Isomichi, Motoki Shigemi |
| 2005 | KES | Multi-agent Cluster System for Optimal Performance in Heterogeneous Computer Environments. | Toshihiro Ikeda, Akira Hara, Takumi Ichimura, Tetsuyuki Takahama, Yuko Taniguchi, Hiroshige Yamada, Ryota Hakozaki, Haruo Sakuda |
| 2004 | KES | Extraction of Rules from Coronary Heart Disease Database Using Automatically Defined Groups. | Akira Hara, Takumi Ichimura, Tetsuyuki Takahama, Yoshinori Isomichi |
| 2004 | SMC | Structural learning of neural networks by coevolutionary genetic algorithm with degeneration. | Tetsuyuki Takahama, Setsuko Sakai |
| 2003 | KES | Extraction of Rules by Heterogeneous Agents Using Automatically Defined Groups. | Akira Hara, Takumi Ichimura, Tetsuyuki Takahama, Yoshinori Isomichi |
| 2003 | KES | Multi-objective Decision Making by AHP and Its Application to Personal Preference Retrieval System. | Takumi Ichimura, Akira Hara, Tetsuyuki Takahama, Yoshinori Isomichi, Rie Utsunomiya |
| 2003 | SMC | Structural learning of RBF-fuzzy rule bases based on information criteria and degeneration. | Tetsuyuki Takahama, Setsuko Sakai, Noriyuki Iwane |
| 2001 | CEC | Team model and taught-by-the-best operation. | Tetsuyuki Takahama, Setsuko Sakai |
| 2000 | KES | Adaptive evolutional learning method of neural networks using genetic algorithms under dynamic environments. | Shinichi Oeda, Takumi Ichimura, Mutsuhiro Terauchi, Tetsuyuki Takahama, Yoshinori Isomichi |