All Stories

  1. Green optimization: Energy-aware design of metaheuristics by using machine learning surrogates to cope with real problems

    Article • Future Generation Computer Systems, September 2026, Elsevier

    Tomohiro Harada

  2. Recent J. Paper: Energy-Aware Metaheuristics with ML Surrogates

    Article • July 2026, ACM (Association for Computing Machinery)

    Tomohiro Harada

  3. Energy-Aware Metaheuristics

    Article • July 2026, ACM (Association for Computing Machinery)

    Tomohiro Harada

  4. Neighbor-Based Validation for Reliable Surrogate Accuracy Assessment in SAEAs

    Article • January 2026, Elsevier

    Tomohiro Harada

  5. Impact of surrogate model accuracy on performance and model management strategy in surrogate-assisted evolutionary algorithms

    Article • Array, September 2025, Elsevier

    Tomohiro Harada

  6. Large Language Model Driven Evolutionary Optimization Benchmark Generation Algorithm

    Article • July 2025, ACM (Association for Computing Machinery)

    Yuhiro Ono, Tomohiro Harada

  7. Acquisition of Cooperative Control of Multiple Vehicles Through Reinforcement Learning Utilizing Vehicle-to-Vehicle Communication and Map Information

    Article • Journal of Robotics and Mechatronics, June 2024, Fuji Technology Press Ltd.

    Tomohiro Harada

  8. Automatic Route Design by Stepwise Subdivision of Virtual Walls —Reduces Route Length and Speeds Up Execution Time—

    Article • Journal of Robotics and Mechatronics, June 2024, Fuji Technology Press Ltd.

    Tomohiro Harada

  9. Hierarchical Reward Model of Deep Reinforcement Learning for Enhancing Cooperative Behavior in Automated Driving

    Article • Journal of Advanced Computational Intelligence and Intelligent Informatics, March 2024, Fuji Technology Press Ltd.

    Tomohiro Harada

  10. Parallel cooperative multiobjective coevolutionary algorithm for constrained multiobjective optimization problems

    Article • Applied Soft Computing, March 2024, Elsevier

    Tomohiro Harada

  11. Fast Implementation of Extreme Learning Machine-based DirectRanker for Surrogate-assisted Evolutionary Algorithms

    Article • September 2023, Institute of Electrical & Electronics Engineers (IEEE)

    Tomohiro Harada

  12. Hybrid Rocket Engine Design Using Pairwise Ranking Surrogate-assisted Differential Evolution

    Article • July 2023, ACM (Association for Computing Machinery)

    Dr Masahiro Kanazaki, Tomohiro Harada

  13. A pairwise ranking estimation model for surrogate-assisted evolutionary algorithms

    Article • Complex & Intelligent Systems, June 2023, Springer Science + Business Media

    Tomohiro Harada

  14. A frequency-based parent selection for reducing the effect of evaluation time bias in asynchronous parallel multi-objective evolutionary algorithms

    Article • Natural Computing, December 2022, Springer Science + Business Media

    Tomohiro Harada

  15. A Pairwise Ranking Estimation Model for Surrogate-assisted Evolutionary Algorithms

    Article • May 2022, Institute of Electrical & Electronics Engineers (IEEE)

    Tomohiro Harada

  16. A fresh approach to evaluate performance in distributed parallel genetic algorithms

    Article • Applied Soft Computing, April 2022, Elsevier

    Tomohiro Harada

  17. A Frequency-based Parent Selection for Reducing the Effect of Evaluation Time Bias in Asynchronous Parallel Multi-objective Evolutionary Algorithms

    Article • July 2021, Research Square

    Tomohiro Harada

  18. Parallel differential evolution applied to interleaving generation with precedence evaluation of tentative solutions

    Article • June 2021, ACM (Association for Computing Machinery)

    Tomohiro Harada

  19. Improving CPU utilization of interleaving generation parallel evolutionary algorithm with precedence evaluation of tentative solutions and their suspension

    Article • SICE Journal of Control Measurement and System Integration, January 2021, Taylor & Francis

    Tomohiro Harada

  20. Search Progress Dependent Parent Selection for Avoiding Evaluation Time Bias in Asynchronous Parallel Multi-Objective Evolutionary Algorithms

    Article • December 2020, Institute of Electrical & Electronics Engineers (IEEE)

    Tomohiro Harada

  21. Parallel Genetic Algorithms

    Article • ACM Computing Surveys, September 2020, ACM (Association for Computing Machinery)

    Tomohiro Harada

  22. Comparison of synchronous and asynchronous parallelization of extreme surrogate-assisted multi-objective evolutionary algorithm

    Article • Natural Computing, September 2020, Springer Science + Business Media

    Tomohiro Harada

  23. Proposal of Multimodal Program optimization Benchmark and Its Application to Multimodal Genetic Programming

    Article • July 2020, Institute of Electrical & Electronics Engineers (IEEE)

    Tomohiro Harada

  24. A Study on Efficient Asynchronous Parallel Multi-objective Evolutionary Algorithm with Waiting Time Limitation

    Article • January 2020, Springer Science + Business Media

    Tomohiro Harada

  25. Mathematical Model of Asynchronous Parallel Evolutionary Algorithm to Analyze Influence of Evaluation Time Bias

    Article • December 2019, Institute of Electrical & Electronics Engineers (IEEE)

    Tomohiro Harada

  26. Using Graph Convolution Network for Predicting Performance of Automatically Generated Convolution Neural Networks

    Article • December 2019, Institute of Electrical & Electronics Engineers (IEEE)

    Tomohiro Harada

  27. Player Dominance Adjustment Motion Gaming AI for Health Promotion

    Article • October 2019, ACM (Association for Computing Machinery)

    Tomohiro Harada, Junjie Xu

  28. Improving Brain Memory through Gaming Using Hand Clenching and Spreading

    Article • October 2019, ACM (Association for Computing Machinery)

    Tomohiro Harada

  29. An Analysis of Highlight-Oriented AI Using Fighting-Game Experience

    Article • October 2019, Institute of Electrical & Electronics Engineers (IEEE)

    Tomohiro Harada

  30. Enhance Physical and Mental Well-Being of Game Players in an Endless Running Game

    Article • October 2019, Institute of Electrical & Electronics Engineers (IEEE)

    Tomohiro Harada

  31. Player Dominance Adjustment: Promoting Self-Efficacy and Experience of Game Players by Adjusting Dominant Power

    Article • October 2019, Institute of Electrical & Electronics Engineers (IEEE)

    Tomohiro Harada

  32. Towards an Angry-Birds-Like Game System for Promoting Mental Well-Being of Players using Art-Therapy-Embedded Procedural Content Generation

    Article • October 2019, Institute of Electrical & Electronics Engineers (IEEE)

    Tomohiro Harada

  33. A Fighting Game AI Using Highlight Cues for Generation of Entertaining Gameplay

    Article • August 2019, Institute of Electrical & Electronics Engineers (IEEE)

    Tomohiro Harada

  34. An Angry Birds Level Generator with Rube Goldberg Machine Mechanisms

    Article • August 2019, Institute of Electrical & Electronics Engineers (IEEE)

    Tomohiro Harada

  35. Motion Gaming AI using Time Series Forecasting and Dynamic Difficulty Adjustment

    Article • August 2019, Institute of Electrical & Electronics Engineers (IEEE)

    Tomohiro Harada

  36. Promoting Emotional Well-Being with Angry-Birds-like Gameplay on Pixel Image Levels

    Article • August 2019, Institute of Electrical & Electronics Engineers (IEEE)

    Tomohiro Harada

  37. Multimodal genetic programming using program similarity measurement and its application to wall-following problem

    Article • July 2019, ACM (Association for Computing Machinery)

    Tomohiro Harada

  38. A Visual Analysis of Gameplay in a Fighting Game

    Article • July 2019, Institute of Electrical & Electronics Engineers (IEEE)

    Tomohiro Harada

  39. Improving Rolling Horizon Evolutionary Algorithm in a Fighting Game

    Article • July 2019, Institute of Electrical & Electronics Engineers (IEEE)

    Tomohiro Harada

  40. Self-Play for Training General Fighting Game AI

    Article • July 2019, Institute of Electrical & Electronics Engineers (IEEE)

    Tomohiro Harada

  41. Verification of Applying Curiosity-Driven to Fighting Game AI

    Article • July 2019, Institute of Electrical & Electronics Engineers (IEEE)

    Tomohiro Harada

  42. Promoting Emotions with Angry Birds-like Gameplay on Rube Goldberg Machine Levels

    Article • June 2019, Institute of Electrical & Electronics Engineers (IEEE)

    Tomohiro Harada

  43. Using GWAP to Generate Informative Descriptions for Artwork Images on a Live Streaming Platform

    Article • June 2019, Institute of Electrical & Electronics Engineers (IEEE)

    Tomohiro Harada

  44. Analysis of semi-asynchronous multi-objective evolutionary algorithm with different asynchronies

    Article • Soft Computing, May 2019, Springer Science + Business Media

    Tomohiro Harada

  45. A Study on Multimodal Genetic Programming Introducing Program Simplification

    Article • December 2018, Institute of Electrical & Electronics Engineers (IEEE)

    Tomohiro Harada

  46. An Analysis of Fighting Game AIs Having a Persona

    Article • October 2018, Institute of Electrical & Electronics Engineers (IEEE)

    Tomohiro Harada

  47. An Angry Birds-like Game System for Promoting Players’ Emotion

    Article • October 2018, Institute of Electrical & Electronics Engineers (IEEE)

    Tomohiro Harada

  48. An Object Matrix Input Format for a Deep AI in Angry Birds and the Like

    Article • October 2018, Institute of Electrical & Electronics Engineers (IEEE)

    Tomohiro Harada

  49. Blow Up Depression with In-Game TNTs

    Article • October 2018, Institute of Electrical & Electronics Engineers (IEEE)

    Tomohiro Harada

  50. Utilizing Multiple Agents for Decision Making in a Fighting Game

    Article • October 2018, Institute of Electrical & Electronics Engineers (IEEE)

    Tomohiro Harada

  51. Applying Hybrid Reward Architecture to a Fighting Game AI

    Article • August 2018, Institute of Electrical & Electronics Engineers (IEEE)

    Tomohiro Harada

  52. Monte-Carlo Tree Search Implementation of Fighting Game AIs Having Personas

    Article • August 2018, Institute of Electrical & Electronics Engineers (IEEE)

    Tomohiro Harada

  53. Monte-Carlo Tree Search for Implementation of Dynamic Difficulty Adjustment Fighting Game AIs Having Believable Behaviors

    Article • August 2018, Institute of Electrical & Electronics Engineers (IEEE)

    Tomohiro Harada

  54. Crowding distance based promising solution selection in surrogate assisted asynchronous multi-objective evolutionary algorithm

    Article • July 2018, ACM (Association for Computing Machinery)

    Tomohiro Harada

  55. Evolutionary algorithm using surrogate assisted model for simultaneous design optimization benchmark problem of multiple car structures

    Article • July 2018, ACM (Association for Computing Machinery)

    Tomohiro Harada

  56. Adaptive asynchrony in semi-asynchronous evolutionary algorithm based on performance prediction using search history

    Article • July 2018, ACM (Association for Computing Machinery)

    Tomohiro Harada

  57. Smile with Angry Birds: Two Smile-Interface Implementations

    Article • June 2018, Institute of Electrical & Electronics Engineers (IEEE)

    Tomohiro Harada

  58. Validation of Deep Features Using the 1-NN Algorithm for Image Similarity Computation

    Article • June 2018, Institute of Electrical & Electronics Engineers (IEEE)

    Tomohiro Harada

  59. Potential improvement of CNN-based colorization for non-natural images

    Article • January 2018, Institute of Electrical & Electronics Engineers (IEEE)

    Tomohiro Harada

  60. Feature extraction of gameplays for similarity calculation in gameplay recommendation

    Article • November 2017, Institute of Electrical & Electronics Engineers (IEEE)

    Tomohiro Harada

  61. Multimodal genetic programming by using tree structure similarity clustering

    Article • November 2017, Institute of Electrical & Electronics Engineers (IEEE)

    Tomohiro Harada

  62. Machine-Code Program Evolution by Genetic Programming Using Asynchronous Reference-Based Evaluation Through Single-Event Upset in On-Board Computer

    Article • Journal of Robotics and Mechatronics, October 2017, Fuji Technology Press Ltd.

    Tomohiro Harada

  63. Intelligent assistant for providing instructions and recommending motions during full-body motion gaming

    Article • October 2017, Institute of Electrical & Electronics Engineers (IEEE)

    Tomohiro Harada

  64. Towards adaptive motion gaming AI with player's behavior modeling for health promotion

    Article • October 2017, Institute of Electrical & Electronics Engineers (IEEE)

    Tomohiro Harada

  65. Procedural generation of angry birds fun levels using pattern-struct and preset-model

    Article • August 2017, Institute of Electrical & Electronics Engineers (IEEE)

    Tomohiro Harada

  66. A study of self-adaptive semi-asynchronous evolutionary algorithm on multi-objective optimization problem

    Article • July 2017, ACM (Association for Computing Machinery)

    Tomohiro Harada

  67. Integrating surrogate evaluation model and asynchronous evolution in multi-objective evolutionary algorithm for expensive and different evaluation time

    Article • July 2017, ACM (Association for Computing Machinery)

    Tomohiro Harada

  68. Analysis of Relationship between the Player's Behavior Change and the Effectiveness of a Health Promotion AI

    Article • June 2017, Institute of Electrical & Electronics Engineers (IEEE)

    Tomohiro Harada

  69. Automatic Generation of Game Plays Considering the Play Arc by the AI in a Fighting Game

    Article • June 2017, Institute of Electrical & Electronics Engineers (IEEE)

    Tomohiro Harada

  70. Feature Extraction of Game Plays for Procedural Play Generation

    Article • June 2017, Institute of Electrical & Electronics Engineers (IEEE)

    Tomohiro Harada

  71. Object-Specific Style Transfer Based on Feature Map Selection Using CNNs

    Article • June 2017, Institute of Electrical & Electronics Engineers (IEEE)

    Tomohiro Harada

  72. Performance comparison of parallel asynchronous multi-objective evolutionary algorithm with different asynchrony

    Article • June 2017, Institute of Electrical & Electronics Engineers (IEEE)

    Tomohiro Harada

  73. Segmentation Mask Refinement Using Image Transformations

    Article • IEEE Access, January 2017, Institute of Electrical & Electronics Engineers (IEEE)

    Tomohiro Harada

  74. Applying and Improving Monte-Carlo Tree Search in a Fighting Game AI

    Article • November 2016, ACM (Association for Computing Machinery)

    Tomohiro Harada

  75. Application of Monte-Carlo tree search in a fighting game AI

    Article • October 2016, Institute of Electrical & Electronics Engineers (IEEE)

    Tomohiro Harada

  76. Efficient implementation of breadth first search for general video game playing

    Article • October 2016, Institute of Electrical & Electronics Engineers (IEEE)

    Tomohiro Harada

  77. Position-based reinforcement learning biased MCTS for General Video Game Playing

    Article • September 2016, Institute of Electrical & Electronics Engineers (IEEE)

    Tomohiro Harada

  78. An Improvement of Matrix Factorization with Bound Constraints for Recommender Systems

    Article • July 2016, Institute of Electrical & Electronics Engineers (IEEE)

    Tomohiro Harada

  79. Procedural generation of angry birds levels with adjustable difficulty

    Article • July 2016, Institute of Electrical & Electronics Engineers (IEEE)

    Tomohiro Harada

  80. Personalized Real-Time Sleep Stage from Past Sleep Data to Today’s Sleep Estimation

    Article • January 2016, Springer Science + Business Media

    Tomohiro Harada

  81. Improving heuristic search for RTS-game unit micromanagement using reinforcement learning

    Article • October 2015, Institute of Electrical & Electronics Engineers (IEEE)

    Tomohiro Harada

  82. Investigating Kinect-based fighting game AIs that encourage their players to use various skills

    Article • October 2015, Institute of Electrical & Electronics Engineers (IEEE)

    Tomohiro Harada

  83. Predicting the opponent's action using the k-nearest neighbor algorithm and a substring tree structure

    Article • October 2015, Institute of Electrical & Electronics Engineers (IEEE)

    Tomohiro Harada

  84. Procedural generation of angry birds levels that adapt to the player's skills using genetic algorithm

    Article • October 2015, Institute of Electrical & Electronics Engineers (IEEE)

    Tomohiro Harada

  85. Combining pathfmding algorithm with Knowledge-based Monte-Carlo tree search in general video game playing

    Article • August 2015, Institute of Electrical & Electronics Engineers (IEEE)

    Tomohiro Harada

  86. Sightseeing plan recommendation system using sequential pattern mining based on adjacent activities

    Article • May 2015, Institute of Electrical & Electronics Engineers (IEEE)

    Tomohiro Harada

  87. Toward robustness against environmental change speed by Artificial Bee Colony algorithm based on local information sharing

    Article • May 2015, Institute of Electrical & Electronics Engineers (IEEE)

    Tomohiro Harada

  88. Estimating surrounding symptom level of dementia patient by sleep stage

    Article • March 2015, Institute of Electrical & Electronics Engineers (IEEE)

    Tomohiro Harada

  89. Asynchronously evolving solutions with excessively different evaluation time by reference-based evaluation

    Article • July 2014, ACM (Association for Computing Machinery)

    Tomohiro Harada

  90. Favor Information Presentation and Its Effect for Collective-Adaptive Situation

    Article • January 2014, Springer Science + Business Media

    Tomohiro Harada

  91. What is Needed to Promote an Asynchronous Program Evolution in Genetic Programing?

    Article • January 2014, Springer Science + Business Media

    Tomohiro Harada

  92. Asynchronous Evaluation Based Genetic Programming: Comparison of Asynchronous and Synchronous Evaluation and Its Analysis

    Article • January 2013, Springer Science + Business Media

    Tomohiro Harada

  93. Towards Understanding of Relationship among Pareto Optimal Solutions in Multi-dimensional Space via Interactive System

    Article • January 2013, Springer Science + Business Media

    Tomohiro Harada

  94. Evolving conditional branch programs in Tierra-based Asynchronous Genetic Programming

    Article • November 2012, Institute of Electrical & Electronics Engineers (IEEE)

    Tomohiro Harada

  95. Robustness to Bit Inversion in Registers and Acceleration of Program Evolution in On-Board Computer

    Article • Journal of Advanced Computational Intelligence and Intelligent Informatics, October 2011, Fuji Technology Press Ltd.

    Tomohiro Harada

  96. Adaptive mutation depending on program size in asynchronous program evolution

    Article • October 2011, Institute of Electrical & Electronics Engineers (IEEE)

    Tomohiro Harada