1. Applied Mathematics Department, School of Applied Mathematics and Informatics, Hanoi University of Science and Technology, Hanoi, Vietnam.
2. Big Data Lab, CMC Institute of Science and Technology, Hanoi, Vietnam.
3. Faculty of Information Technology, Posts and Telecommunications Institute of Technology, Hanoi, Vietnam.
4. Department of Computer Engineering, Advanced Technology Research Institute, Jeju National University, Jeju, Korea.
5. Swinburne Vietnam, FPT University, Hanoi, Vietnam.