1. Department of Geography and Resource Management, The Chinese University of Hong Kong, Shatin, Hong Kong
2. Institute of Future Cities, The Chinese University of Hong Kong, Shatin, Hong Kong
3. Stanley Ho Big Data Decision Analytics Research Centre, The Chinese University of Hong Kong, Shatin, Hong Kong
4. Department of Computer Science and Engineering, The Chinese University of Hong Kong, Shatin, Hong Kong
5. Department of Electronics and Computer Science, University of Southampton, Southampton, UK