1. Key Laboratory of Knowledge Engineering With Big Data, Ministry of Education, the School of Computer Science and Information Engineering, the Anhui Province Key Laboratory of Industry Safety and Emergency Technology, and the Intelligent Interconnected Systems Laboratory of Anhui Province, Hefei University of Technology, Hefei, China
2. Department of Applied Mathematics and Computer Science, Cyber Security Section, Technical University of Denmark (DTU), Kongens Lyngby, Denmark
3. School of Cyberspace Science and Technology, Beijing Institute of Technology, Beijing, China
4. School of Computer Science, University of Guelph, Guelph, ON, Canada