Toward Unbounded Search Space Exploration by Particle Swarm Optimization in Multi-Modal Optimization Problem. - Ryuki Ishizawa; Tomoya Kuga; Yusuke Maekawa; Hiroyuki Sato; Keiki Takadama (CEC, 2023)

From Multipoint Search to Multiarea Search: Novelty-Based Multi-Objectivization for Unbounded Search Space Optimization. - Ryuki Ishizawa; Hiroyuki Sato; Keiki Takadama (CEC, 2024)

Limitation of Adapting to Continuously Changing Optimization Problem and Its Solution in Swarm Optimization. - Shoei Fujita; Ryuki Ishizawa; Hiroyuki Sato; Keiki Takadama (CEC, 2025)

Controlling an Exploration in Unbounded Search Space by Novelty-Based Multi-Objectivization. - Ryuki Ishizawa; Hiroyuki Sato; Keiki Takadama (CEC, 2025)

Adaptive Multi-Population Dynamic Optimization for Multimodal Dynamic Function Optimization. - Shoei Fujita; Ryuki Ishizawa; Hiroyuki Sato; Keiki Takadama (GECCO, 2025)

Novelty-based multi-objectivization for unbounded search space optimization. - Ryuki Ishizawa; Hiroyuki Sato; Keiki Takadama (Artif. Life Robotics, 2025)