AND rule for nodewise graph selection
= AND rule for nodewise graph selection
{c}
{title2=$\{j,k\}\in\widehat E\iff\widehat\theta_{jk}\ne0\text{ and }\widehat\theta_{kj}\ne0$}
= Nodewise graph intersection rule
{synonym}
The intersection rule retains an edge only when both directions of <nodewise regression> select it. It is more conservative than the <OR rule for nodewise graph selection>; the distinction matters because separate finite-sample fits can disagree.