I was asking OP. I am at this point pretty convinced that he actually used deep learning methodologies not ML in the strict sense. Hardly any ML methodologies produce indecipherable algorithms and models.
I know almost nothing about Machine Learning. Except watching a few short videos on youtube on ML for chess and image processing.
But when someone says they are using ML for trading. It conjures up images in my mind of trading data (recent bars, volume etc) being fed into a neural network and a prediction comes out with probabilities for either long, short, or flat.
So i was presuming he doesn't understand sometimes because a complex neural network is involved in making the predictions for some of his strategies?