利用朋友机制生成一类无标度网络  

Friends-Help Mechanism for Generating a Class of Scale-Free Networks

作　　者：裴伟东[1] 陈增强[1] 袁著祉[1] 

机构地区：[1]南开大学自动化系

出　　处：《吉林大学学报（信息科学版）》2007年第4期371-378,共8页Journal of Jilin University（Information Science Edition）

基　　金：国家自然科学基金资助项目(60574036);教育部博士点专项基金资助项目(20050050013);教育部优秀人才基金资助项目(NCET2005-290)

摘　　要：针对网络模型的演化问题,提出了一种新的无标度网络演化模型。该模型可以帮助人们从"朋友机制"捕捉网络形成的动态特性、了解该机制对网络最终结构的影响,对研究网络功能及网络上的动力学行为有一定的参考价值。通过理论分析与数据仿真证明,该演化模型具有无标度特征和小世界特征,比BA模型更接近于真实网络。A new scale-free network evolving model was proposed on network evolutions. This model may help to capture the dynamic processes of how the networks are formed by means of the ＂friends-help mechanism＂ and understand its influence on the final topology of the networks. The model may also have some practical significance for people to capture the performance of the network and the dynamics on the network. Theoretical analysis and numerical simulations results show that the network evolving model has the scale-free and small-world features. Therefore, it is more realistic than the BA network.

关 键 词：朋友机制 无标度网络 幂律分布 聚集系数 平均距离 

分 类 号：TN91[电子电信—通信与信息系统]