[BUG] What does "Spectral Vertex Nomination" implement?

[ebridge2]

Expected Behavior

One of the procedures from the reference papers to be implemented.

Actual Behavior

I don't think any of the procedures in the reference papers reflect the algorithm that is implemented, as the output does not address the vertex nomination problem, from Fishkind 2015:

The output provides a nomination list for each seed node, which is not the vertex nomination problem as-described in the papers linked, but a closely related (albeit distinct) problem.

[ebridge2]

Clarified with @bdpedigo that it uses a definition of vertex nomination/proposes a solution distinct from those presented in the papers. Suggested fix: clarification as to the papers it is using.