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For questions related to deep learning, which refers to a subset of machine learning methods based on artificial neural networks (ANNs) with multiple hidden layers. The adjective deep thus refers to the number of layers of the ANNs. The expression deep learning was apparently introduced (although not in the context of machine learning or ANNs) in 1986 by Rina Dechter in the paper "Learning while searching in constraint-satisfaction-problems".

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When should I use a linear activation instead of ReLU?

The activation function you choose depends on the application you are building/data that you have got to work with. It is hard to recommend one over the other, without taking this into account. Here …
Krrrl's user avatar
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2 votes

Is the gradient at a layer independent of the activations of the previous layers?

Is the gradient at a layer (of a feed-forward neural network) independent of the activations of the previous layers? Yes, as per @recessive answer they are indeed independent of the previous laye …
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