1. School of Computer Science and Engineering, South China University of Technology, Guangzhou, China
2. School of Chinese Language and Literature, South China Normal University, Guangzhou, China
3. Alibaba, Feitian Campus, Hangzhou, China
4. Department of Computing, The Hong Kong Polytechnic University, Hong Kong, Hong Kong
5. Department of Business Administration, Chaoyang University of Technology, Taichung, Taiwan
6. Hanyang University, Ansan, South Korea