Institution: | 1. College of Big Data and Information Engineering, Guizhou University, Guiyang 550025, China;2. College of Electronics and Information Engineering, Anshun University, Anshun 561000, China;1. School of Mathematics and Computer Science, Wuhan Textile University, Wuhan 430073, PR China;2. Department of Mathematics, Zhaoqing University, Zhaoqing 526061, PR China |