From: Neural networks for link prediction in realistic biomedical graphs: a multi-dimensional evaluation of graph embedding-based approaches
Operator
Definition
Average
\(\frac {f_{i}(u) + f_{i}(v)}{2}\)
Concatenate
f(u). f(v)
Hadamard
f i (u)∗f i (v)
Weighted-L1
|f i (u)−f i (v)|
Weighted-L2
|f i (u)−f i (v)|2