1. Faculty of Information Technology and the Institute of Research and Development, Duy Tan University, Da Nang, Vietnam
2. Department of Computer Science, Faculty of Science, Applied Network Technology Laboratory, Khon Kaen University, Khon Kaen, Thailand
3. Faculty of Computer Science, Phenikaa University, Hanoi, Vietnam
4. School of Computer Science and Engineering, Nanyang Technological University, Jurong West, Singapore
5. Department of Computer Science, College of Computing, Applied Network Technology Laboratory, Khon Kaen University, Khon Kaen, Thailand