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I have asked other AI folk this question, but I haven’t really been given an answer that satisfied me.
For anyone else that has programmed an artificial neural network before, how do you test for its correctness?
I guess, another way to put it is, how does one debug the code behind a neural network?
Correctness is a funny concept in most of “soft computing.” The best I can tell you is: “a neural network is correct when it consistently satisfies the parameters of it’s design.” You do this by training it with data, and then verifying with other data, and having a feedback loop in the middle which lets you know if the neural network is functioning appropriately.
This is of-course the case only for neural networks that are large enough where a direct proof of correctness is not possible. It is possible to prove that a neural network is correct through analysis if you are attempting to build a neural network that learns XOR or something similar, but for that class of problem an aNN is seldom necessary.