1. Department of Data Science, School of Statistics, Capital University of Economics and Business, Beijing, China
2. School of Journalism and Communication, Nankai University, Tianjin, China
3. Convergence Media Research Center, Nankai University, Tianjin, China
4. Publishing Research Institute, Nankai University, Tianjin, Tianjin, China
5. State Key Lab of Software Development Environment, Beihang University, Beijing, China