1. College of Computer Science and Technology, Dalian University of Technology, Dalian 116024, China
2. Department of Environmental Health Sciences, Mailman School of Public Health, Columbia University, New York, NY 10032, USA
3. Department of Genetics, University of Cambridge, Cambridge CB2 3EH, UK
4. Computational Communication Research Center, Beijing Normal University, Zhuhai 519087, China
5. School of Journalism and Communication, Beijing Normal University, Beijing 100875, China