一种局部集聚的网络演化模型  

A Local Clustered Evolving Network Model

作　　者：赵海[1] 袁韶谦[1] 张昕[1] 李超[1] 

机构地区：[1]东北大学信息科学与工程学院,辽宁沈阳110004

出　　处：《东北大学学报（自然科学版）》2007年第11期1548-1551,共4页Journal of Northeastern University(Natural Science)

基　　金：国家高技术研究发展计划项目(2001AA415320)

摘　　要：著名的局域世界演化模型提出了局部演化的思想,但其局域世界的选取方式却不太符合现实世界的情况.由此提出了一个改进的局域世界演化模型,生成的网络同时具有无尺度和小世界特性,其度分布也同样表现为幂率和指数之间的某种过渡,而相对于原模型,却具有大得多的聚类系数,这符合真实世界的情况,使得本模型更有应用价值.The famous local-world model has presented a notion about local evolving, but the methodology it selected dose not conform to the reality very well. So, a modified version of the local-world evolving model is presented, with which the network generated possesses both the scale-free and small-world properties, and it＇s degree distribution represents a transition between power-law and exponential scaling. In contrast to the old model, it has a much bigger cluster coefficient which is in conformity with the real world, thus making the modified model more applicable than the old one.

关 键 词：局部集聚 演化模型 无尺度 小世界 聚类系数 

分 类 号：N94[自然科学总论—系统科学] O173[理学—数学]