Yang, Yijun; Duan, Haibin - In: International Journal of Swarm Intelligence Research (IJSIR) 7 (2016) 3, pp. 1-22
City group refers to a collection of cities. Through the development and growth, and these cities form a chain of metropolitan areas. In a city group, cities are divided into central cities and subordinate cities. Generally, central cities have greater chances to develop. However, subordinate...