居民出行演化网络的度分布

The degree distribution of the urban resident trip and evolution network model

采用主方程方法和连续方法计算了一类特殊的居民出行演化网络的度分布,当时间趋于无限大时,主方程方法更优于连续方法,很好符合了网络模型随时间生长变化的过程;同时验证了该网络的节点度分布符合幂律分布,其幂指数为3;说明了居民出行演化网络具有择优和生长的特性,其网络的拓扑结构类似与无标度网络的拓扑结构.与实例得到了很好的吻合.

The degree distribution of the urban resident trip and evolution network model was obtained.Respectively by using the mean-field heory and the master eqution,the master eqution is better than the mean-field heory at infinite time.It proves that the degree distribution of the network obeys power-law and the power index was three.The topology of the network has the characteristic of scale-free networks to show the same results as that of the fact.