摘要
为了定量地刻画复杂网络的非标度性,提出了节点重要度、网络结构熵、标准网络结构熵的概念,阐述了网络结构熵与连接度分布的关系.以世界贸易网为实例,比较了随机网络与非标度网络的网络结构熵.最后指出网络结构熵将是研究复杂网络的一个重要工具.
To characterize the scale-free feature of complex network quantificationally, the concepts of node-importance, network structure entropy and standard network structure entropy are proposed. The relation between the network structure entropy and the degree distribution is expounded. The network structure entropy of random graph and scale-free network is compared through the example of world trade web. Finally it is indicated that the network structure entropy will be an important tool to research the complex network.
出处
《系统工程理论与实践》
EI
CSCD
北大核心
2004年第6期1-3,共3页
Systems Engineering-Theory & Practice
基金
国家自然科学基金(70071046)
关键词
网络结构熵
复杂网络
非标度性
非同质性
network structure entropy
complex network
scale-free
inhomogeneity
