基于混合模型的复杂信息系统节点重要度评估

摘要

The topological structure of a complex information system and the structure importance based on node degree and betweenness properties are defined.Considering the node structure and functional importance,we propose a hybrid complex information system node important degree evaluation model and an algorithm based on vulnerability.Examples show that,by integrating risk factors of the complex information system and structure attributes,we can further distinguish the node important degree difference in network,and it can be a theoretical basis of node importance degree evaluation in large-scale complicated information systems.%定义复杂信息系统的拓扑结构和基于连接度、介数特性的节点结构重要度.综合考虑节点的结构重要度与功能重要度,提出基于节点脆弱性权值的复杂信息系统节点重要度评估混合模型及算法.实验算例表明,该方法融合复杂信息系统中的各项风险要素和结构属性,能进一步有效区分网络中的节点重要度差异,可作为大规模复杂信息系统节点重要度评估的理论基础.