1. Machine Life and Intelligence Research Center, Guangzhou University, Guangzhou 510006, China
2. School of Mathematics and Information Science, Guangzhou University, Guangzhou 510006, China
3. School of Mechanical and Electrical Engineering, Guangzhou University, Guangzhou 510006, China
4. MLTOR Numerical Control Technology Co., Ltd., Zhongshan 528400, China
5. School of Computing and Mathematical Sciences, University of Leicester, Leicester LE1 7RH, UK