Network node link evaluation method and system based on multi-attribute decision

The invention provides a network node link evaluation method and system based on multi-attribute decision, and belongs to the technical field of communication networks. The method comprises the following steps: acquiring flow data and topological data of a target network at fixed time intervals; calculating the validity of each communication link, the validity of each network node, the importance of each communication link, the importance of each network node and the reliability of the target network in the target network based on the flow data and the topological data of the target network; and carrying out data fusion analysis to obtain an evaluation result of the network node and the communication link of the target network. According to the method, the reliability, the effectiveness and the importance of the network are evaluated from the two aspects of nodes and links, different attributes are unified by a framework through a multi-attribute decision, evaluation values of all the nodes and the links in t