RGF-distance between viral PPI and model networks. RGF-distance between the viral PPI networks and the model networks. Points on the horizontal axis correspond to viral PPI networks of: EBV, HSV-1, KSHV, mCMV, and VZV herpes viruses. Lines with different labels correspond to different model networks. The vertical axis represents the average RGF-distance between the corresponding data and model networks. Thirty instances of each network model were generated for each data network and constrained to be of the size of the data and averaged RGF-distance values and standard deviations of their RGF-distance with the data are reported on the plot. Higher values of RGF-distance reflect lower similarities between the networks. This plot was generated by GraphCrunch 2.