1. Institute of Fundamental and Frontier Science, University of Electronic Science and Technology of China, Chengdu, China
2. Glasgow College, UESTC, University of Electronic Science and Technology of China, Chengdu, China
3. School of Education, Shannxi Normal University, Xi’an, China
4. School of Knowledge Science, Japan Advanced Institute of Science and Technology, Nomi, Ishikawa, Japan
5. Department of Management, Technology, and Economics, ETH Zurich, Zurich, Switzerland