聚类系数大小及分布可调的BBV网络演化模型

在传统BBV模型的基础上,提出了一种改进的BBV网络演化模型。基本思想是改变网络增长过程中新节点加入时,新旧节点的连接方式及优先选择概率。该模型不仅可以调节无标度加权网络度和强度的分布,还可以通过改变“三角形”连接概率公式中系数的大小,增大网络的聚类系数并调节网络聚类系数的分布。即根据实际需要,大范围调节网络度分布,精确调节聚类系数大小及分布,其生成机制更符合实际网络的演化过程。

An Evolution Model of BBV Network with Tunable Clustering Coefficient and Distribution

Based on the traditional BBV model, an improved BBV model is proposed. The main idea is to change the connecting way of between new nodes and old nodes and the probability of priority selection when a new node joins the network in the growth process. This model could adjust the distribution of degree and strength of the weighted scale-free network while increase clustering coefficient of the network and tune the distribution of clustering coefficient by changing the coefficient in “triangle”connection probability formula. To adjust the distribution of degree in a big way and accurately tune the clustering coefficient and its distribution in accordance with actual needs, this generation mechanism is more accordant with the actual network evolution.