Fig. 6

The VS algorithm depends on node degrees to sort network nodes into three layers. The mean and its 95% confidence interval of the studied properties of KPs in the three layers of each of the five sets of the 1,000 random networks generated by: degree preserving randomization (DPR, red line), similar degree preserving randomization (SDPR, pink line), in-degrees preserving randomization (IDRP, blue line), out-degree preserving randomization (ODRP, green line) and degree non-preserving randomization (DNPR, black line). The black diamonds represent the mean of studied properties of KPs in the three layers of the KP-Net