Table 3.

Embedding operators used to predict edges in the tasks of link prediction and network reconstruction.

Operators	Symbol	Definition
Hadamard	$⊡$	${[f(u)⊡f(v)]}_i=\frac{f_i(u)\ast f_i(v)}{2}$
Average	$⊞$	${[f(u)⊞f(v)]}_i=f_i(u)+f_i(v)$
Weighted-L1	$\Vert .{\Vert }_{\overline{1}}$	$\Vert f_i(u).f_i(v){\Vert }_{\overline{1}}i=\mid f_i(u)-f_i(v)\mid$
Weighted-L2	$\Vert .{\Vert }_{\overline{2}}$	$\Vert f_i(u).f_i(v){\Vert }_{\overline{2}}i=\mid f_i(u)-f_i(v){\mid }^2$
Cosine	cos	$cos{[f(u),f(v)]}_i=\frac{f_i(u)\ast f_i(v)}{\Vert f_i(u)\Vert \Vert f_i(v)\Vert }$

The definitions describe the $i^{\mathit{th}}$ components of g(u, v).