Key nodes identification in communication networks based on multiview network reliability

Identifying key nodes in communication networks is crucial for network security, fault diagnosis, and strategic deployment of critical nodes. In this paper, we construct a multi-view reliability assessment metric, which comprehensively considers the microscopic, mesoscopic, and macroscopic structures of networks, including end-to-end connectivity, interconnectivity between organizational structures, and overall network connectivity. Moreover, we are inspired by K-shell and propose a method for identifying key nodes based on network organizational structure. By employing the idea of node deletion, it analyzes the variation of network reliability after attacking network nodes, thus achieving key node discovery based on network reliability.