@Michaelcochez: Thanks! Where exactly would the codebase be located (URL), and service hosted (if the latter makes sense and if this is separate)? I assume other Wikidata folks are aware and agree to have a separate project tag on this?

• Currently development is ongoing on https://github.com/martaannaj/RecommenderServer Down the line the canonical repository might move to gerrit.
• The hosted service is currently at https://recommender.wmcloud.org/recommender but also this might still change.

agree to have a separate project tag

I really do not know. I started this request because of the suggestion in https://phabricator.wikimedia.org/T292110
Besides, the tag MediaWiki-extensions-PropertySuggester already exists. What we are working on in the Schematree_recommender is a different backend for that extension. So an option would be to 'hijack' that tag.

It's really up to you and who is involved in those projects that already have project tags here (and you probably know the folks way better than I do). :)

I think we can use the existing one and clean it up to be about the general feature of Property suggestions, independent of the backend.