[leaflets2]

If it's neutral networks: I think to some extent you can self study and learn on the job, yes. You can learn how to construct and use neutral networks, and tweak and improve the structure and results, without understanding the maths underneath.

You'd need to (self) study & learn how to train a network, eg course or book or articles?

Hmm isn't that was this HN post is about :-) the course: https://courses.dibya.online/p/fastdeeprl, 4 hours it says, self study

I think often the most challenging part isn't the ML, but to gather training data and clean and prepare it so the ML has sth to learn from