Tao Zheng Baohang Zhang Haichuan Yang Jiayi Li Shangce Gao Differential Whale Optimization Algorithm. 1-6 2021 ICNSC https://doi.org/10.1109/ICNSC52481.2021.9702171 conf/icnsc/2021 db/conf/icnsc/icnsc2021.html#ZhengZYLG21