一个新的演化网络模型中节点的吸引力研究  

Attractiveness of Node in a New Evolving Network Model

作　　者：蒋品群[1] 罗晓曙[1] 汪秉宏[2] 柳继锋[3] 

机构地区：[1]广西师范大学电子工程学院,广西桂林541004 [2]中国科学技术大学近代物理系,安徽合肥230026 [3]广西师范大学物理科学与技术学院,广西桂林541004

出　　处：《广西师范大学学报（自然科学版）》2009年第4期15-18,共4页Journal of Guangxi Normal University:Natural Science Edition

基　　金：国家自然科学基金资助项目(10547004);广西青年基金资助项目(桂科青0728042)

摘　　要：提出一个新的包含成长、老化和死亡机制的演化网络模型,并深入研究了这些演化机制对网络规模和节点吸引力的影响。研究结果表明,网络的规模随死亡因子的增大而迅速减小,而与成长因子和老化因子基本无关。对于同一节点,中青年时期的吸引力最大。对于不同的节点,当成长因子较大而老化因子较小时,就会存在一些寿星节点,其吸引力有可能超过中青年节点的吸引力。研究工作对深入理解和研究真实网络的演化有重要意义。A new evolved network model with growth,aging and death mechanisms is proposed. Influence of these mechanisms on the size of network and the attractiveness of node is studied in-depth. The results show that the size of network decreases rapidly with the＇increase of death factor, but is basically unrelated to the growth and the aging factors. The attractiveness of the same node is the maximum in its young and middle ages. For different nodes,the attractiveness of some old nodes will exceed that of the young and middle-aged node when the growth factor is bigger and the aging factor is smaller. It is of great significance to study the evolution of real networks in-depth.

关 键 词：复杂网络 演化机制 吸引力 成长 老化 死亡 

分 类 号：N941[自然科学总论—系统科学]