1. Data Science Laboratory, Faculty of Information Technology, Ton Duc Thang University, Ho Chi Minh City, Vietnam
2. Department of Electrical Engineering, Posts and Telecommunications Institute of Technology, Ho Chi Minh City, Vietnam
3. Faculty of Engineering and Technology, Nguyen Tat Thanh University, Ho Chi Minh City, Vietnam
4. Department of Software and Communications Engineering, Hongik University, Sejong, South Korea
5. FEI, University of Pardubice, Pardubice, Czech Republic