calculate 'DAG' Jaccard instead of 'tree' Jaccard

[justaddcoffee]

Currently we are using the Jaccard similarity implementation from Ensmallen - this calculates the Jaccard similarity for two nodes considering only one root node at a time (sort of the 'tree' Jaccard).

In the file we are outputting from semsim, for any pair of nodes, we write out the maximum value observed for the 'tree' Jaccard similarities, considering each root node separately.

What we'd like instead is the Jaccard similarity considering all root nodes at the same time (the 'DAG' Jaccard)

@LucaCappelletti94 - how much effort would this be to implement?

@caufieldjh

[LucaCappelletti94]

I would estimate, very roughly, a week.

[justaddcoffee]

hey @LucaCappelletti94 - @hrshdhgd and I were talking about possibly trying to implement DAG Jaccard in Ensmallen as a way to develop some rust skills

Any interest in joining us to hack with us on this some time in the coming few weeks?

[justaddcoffee]

also @caufieldjh