I'm trying to automaticaly group institutes when a request for a corpus is made with HAL (for now).

For exemple, I can have this structure thanks to HAL's API (still need some work on the crawler):

Institut Mines-Télécom [Paris]
|_ IMT - MINES ALES
  |_ Laboratoire des Sciences des Risques
  ...
|_ IMT Atlantique
...

The structure inside GarganText should looks like this inside Institutes tab:

To do this, I might need to add a field _hd_institutes_tree to HyperdataDocument and to do all the necessary changes with it.

Then in buildNgramsLists of src/Gargantext/Core/Text/List.hs I have to make buildNgramsInstList to specify how to build the list Institutes (instead of using buildNgramsOthersList). This is where I'm stuck, I don't understand where I sould make changes in order to group one institute to another one.