| Affiliation: | 1. National Research Base of Intelligent Manufacturing Service, Chongqing Technology and Business University, Chongqing 400067, China;2. Chongqing Three Gorges College, Chongqing, 404000, China;1. School of Software Engineering, Shandong University, Jinan 250101, China;2. School of Computer Science and Technology, Shandong University of Finance and Economics, Jinan 250014, China;3. School of Mechanical, Electrical and Information Engineering, Shandong University (Weihai), Weihai 264209, China;4. School of Mathematics, Dali University, Dali 671000, China |
