1. China-France Joint Research Center of Applied Mathematics for Air Traffic Management, Tianjin Key Laboratory for Advanced Signal Processing, College of Electronic Information and Automation; Civil Aviation University of China; Tianjin China
2. State Key Laboratory of Earth Surface Processes and Resource Ecology, Academy of Disaster Reduction and Emergence Management, Faculty of Geographical Science; Beijing Normal University; Beijing China
3. Collaborative Innovation Center of eTourism; Beijing Union University; Beijing China
4. School of Engineering; University of Warwick; Coventry UK
5. Economics and Management College; Civil Aviation University of China; Tianjin China
6. Faculty of Technology, Policy and Management; Delft University of Technology; Delft The Netherlands