1. Department of Computer Engineering, Yeungnam University, Gyeongsan, Republic of Korea
2. Faculty of Computer Science and Management, Wroclaw University of Science and Technology, Wroclaw, Poland
3. Faculty of Information Technology, Nguyen Tat Thanh University, Ho Chi Minh city, Vietnam
4. Faculty of Engineering and Information Technology, Quang Binh University, Dong Hoi, Vietnam