1. Department of Computer Science and Engineering, Hong Kong University of Science and Technology, China
2. Department of Computer Science and Engineering, The Hong Kong University of Science and Technology, Hong Kong
3. Department of Computer Science and Engineering, The Hong Kong University of Science and Technology, China
4. Department of Systems Engineering and Engineering Management, The Chinese University of Hong Kong, China and Stanley Ho Big Data Decision Analytics Research Centre, The Chinese University of Hong Kong, China
5. Hong Kong University of Science and Technology, Hong Kong