But are you saying that a ML model is just a function? The function C is clear, but what is f? What is the domain and what is the codomain? If f and C commute,

But are you saying that a ML model is just a function? The function C is clear, but what is f? What is the domain and what is the codomain? If f and C commute, then x in X is just your "data" and both the domain and codomain. Edit: > the top voted comment Ah, I see that the top comment says that you use a pre-trained model. Intuitively that I think makes sense. Bot how about training the model itself?