关键词: HK模型, 度分布, 聚类系数

Abstract:

Two improved HK network models based on the HK network model with adjustable degree distribution and clustering coefficient are proposed.The improved models jointly consider the evolution mechanisms of preferential attachment,triangle structure,and internal evolution.The mechanism of TF moved to old nodes in the evolution of network when a new node (a single node or a community) joins in the network.Simulation results show that the two improved models not only inherit the high clustering and scale free properties but also overcome the single way of node joint and the TF mechanism limit between new and old nodes.

Key words: HK model;degree distribution;clustering coefficient