Table 2.

A list of topological terms, t_ij, used in the generative models [Eq. (8)].

Name	tij
clu-avg	$\frac{c_i}{2}+\frac{c_j}{2}$
clu-diff	∣ci − cj∣
clu-max	$\max \left[c_i,c_j\right]$
clu-min	$\min \left[c_i,c_j\right]$
clu-prod	cicj
deg-avg	$\frac{k_i}{2}+\frac{k_j}{2}$
deg-diff	∣ki − kj∣
deg-max	$\max \left[k_i,k_j\right]$
deg-min	$\min \left[k_i,k_j\right]$
deg-prod	kikj
matching	$\frac{\mid N_{i\backslash j}\cap N_{j\backslash i}\mid }{\mid N_{i\backslash j}\cup N_{j\backslash i}\mid }$
neighbors	∑lAilAjl
sptl	1

c is the local clustering coefficient, k represents node degree, A is the adjacency matrix, and N_i\j refers to neighbors of the node i excluding node j.