1. Department of Electronic Engineering, National Kaohsiung University of Science and Technology, Kaohsiung 800, Taiwan
2. Department of Electronic—Electrical Engineering, Nha Trang University, Nha Trang 650000, Vietnam
3. Department of Business Intelligence, National Kaohsiung University of Science and Technology, Kaohsiung 800, Taiwan
4. Faculty of Economics and Management, Thai Binh Duong University, Nha Trang 650000, Vietnam