The sports industry has a rocky past with the loyalty program concept, in part because it tried to shoehorn what worked in the travel industry into a live sports context. It didn’t really fit. Whereas ...

Abstract: Several essential services, such as cellular phones, the Internet, television, navigation, weather prediction, and remote sensing, rely on satellites in low-Earth orbits, the technology for ...

Abstract: This paper focuses on analyzing the resilience of rail transit system based on improved linear programming models. An improved commuter flow model is developed to estimate system status.