A hybrid Gaussian mutation PSO with search space reduction and its application to intelligent selection of piston seal grooves for homemade pneumatic cylinders. - Pengfei Qian; Hui Luo; Lei Liu; Pansong Lv; Chenwei Pu; Deyuan Meng; Luis Miguel Ruiz Páez (Eng. Appl. Artif. Intell., 2023)