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ThisIsMyStonerAcount t1_iz9c2oo wrote

Minsky's work was very relevant because at the time the perceptron was the state of the art, and that algorithm can't solve XOR. That's why his work started the first AI winter.

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Blutorangensaft t1_iz9pl46 wrote

I get that, but I find it a little hard to believe that nobody immediately pointed out a nonlinearity would solve the issue. Or is that just hindsight bias, thinking it was easier because of what we know today?

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ThisIsMyStonerAcount t1_iza1qzy wrote

What nonlinearity would solve the issue? The usual ones we use today certainly wouldn't. Are you thinking a 2nd order polynomial? I'm not sure that's a generally applicable function, with being non-monotonical and all?

(Or do you mean a hidden layer? If so: yeah, that's absolutely hindsight bias).

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Blutorangensaft t1_iza9zrt wrote

I see. I meant the combination of a nonlinear activation function and another hidden layer. Was curious what people thought, thanks for your comment.

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chaosmosis t1_izawfsz wrote

Non-monotonic activation functions can allow for single layers to solve xor, but they take forever to converge.

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