A Note on Applying the Gravity Rule to the Airline Hub Problem
提出了一个航空枢纽选择的新模型，以乘客总旅行里程最小化为目标，该模型也可作为其他目标的基础。
In this note we propose a new model for the airline hub selection problem. Passengers use a hub on the way to their destination. We apply the objective of minimizing the total miles traveled by passengers. This formulation can be used as the basis for other objectives also.