1. Department of Communications Engineering, Jilin University, Changchun, China
2. School of Computer Science and Engineering, the Energy Research Institute @ NTU, Interdisciplinary Graduate Program, Nanyang Technological University, Jurong West, Singapore
3. Alibaba Group and the Alibaba-NTU Joint Research Institute, Nanyang Technological University, Jurong West, Singapore
4. Information Systems Technology and Design Pillar, Singapore University of Technology and Design, Tampines, Singapore
5. School of Computer Science and Engineering, the Energy Research Institute @ NTU, Interdisciplinary Graduate Program, and the School of Computer Science and Engineering, Nanyang Technological University, Jurong West, Singapore
6. Department of Electrical and Computer Engineering, University of Waterloo, Waterloo, Canada
7. School of Computer Science and Engineering, the Alibaba–NTU Joint Research Institute, and the Joint NTU–UBC Research Centre of Excellence in Active Living for the Elderly, Nanyang Technological University, Jurong West, Singapore