The Sorensen index is

$$\mathbf S_{\text{Sorensen}}[u,v] = \frac{ 2\lvert \mathcal N (u) \cap \mathcal N(v) \rvert }{ d_u + d_v},$$

where $d_u$ is the node degree of node $u$ and $\mathcal N(u)$ is the neighbor nodes of $u$.

Planted: by ;

L Ma (2021). 'Graph Local Overlap Measure: Sorensen Index', Datumorphism, 09 April. Available at: https://datumorphism.leima.is/cards/graph/graph-local-overlap-sorensen-index/.