Fig. 2: The eight types of topological perturbation.
From: Topological perturbations on resilience of the world trade competition network
a Randomly remove nodes. b Remove the nodes in order of node degree, black are the nodes with the largest node degree and gray are the nodes with the smallest node degree. c Remove nodes in the order of their weighted degree. d Random removal links. e Remove links in the order of their weight. f After randomly retaining the corresponding proportion of network weights, a weight change experiment is performed, with the 50% retention case in the schematic, and the 10% retention case in the same way. g The original network is subjected to weight change experiments. h The 20% with highest weights and the 20% with lowest weights are retained and then the weight change experiment is performed.
