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Consider a feed-forward neural network with one hidden layer. How are the weights between the input and hidden layer updated, after the weights between the hidden layer and output layer are updated?

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    $\begingroup$ Possible duplicate of Does backpropagation update weights one layer at a time? $\endgroup$ – Philip Raeisghasem Apr 20 at 18:39
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    $\begingroup$ The weights (either between the input and hidden layer or between the hidden layer and the output layer) can be updated at the same time. Are you asking for the mathematical details of the back-propagation algorithm? $\endgroup$ – nbro Apr 20 at 20:06

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