Table 2 A list of topological terms, tij, used in the generative models [Eq. (8)].

From: Genetic influences on hub connectivity of the human connectome

Name

tij

clu-avg

\(\frac{{c}_{i}}{2}+\frac{{c}_{j}}{2}\)

clu-diff

ci − cj

clu-max

\(\max [{c}_{i},{c}_{j}]\)

clu-min

\(\min [{c}_{i},{c}_{j}]\)

clu-prod

cicj

deg-avg

\(\frac{{k}_{i}}{2}+\frac{{k}_{j}}{2}\)

deg-diff

ki − kj

deg-max

\(\max [{k}_{i},{k}_{j}]\)

deg-min

\(\min [{k}_{i},{k}_{j}]\)

deg-prod

kikj

matching

\(\frac{| {N}_{i\backslash j}\cap {N}_{j\backslash i}| }{| {N}_{i\backslash j}\cup {N}_{j\backslash i}| }\)

neighbors

lAilAjl

sptl

1

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