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Backprogagation



2019 Community Moderator ElectionHow to update weights in a neural network using gradient descent with mini-batches?Adjusting weights in an convolutional neural networkBasic backpropagation questionNeural networks - adjusting weightsDoes it ever make sense for upper layers to have more nodes than lower layers?How to use neural network's hidden layer output for feature engineering?Backpropgating error to emedding matrixCNN backpropagation between layersWhat is the difference between reconstruction vs backpropagation?Gradient computation in neural networks










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$begingroup$


I am new to Deep Learning. Suppose that we have a neural network with one input layer, one output layer, and one hidden layer. Let's refer to the weights from input to hidden as w and the weights from hidden to output as v. Suppose that we have initialized w and v, and ran them through the neural network via the Feedforward algorithm. Suppose that we have calculated v via backprogagation. When estimating the ideal weights for w, do we keep the weights v constant when updating w via gradient descent given we already calculated v, or do we allow v to update along with w?



I understand that both w and v should update simultaneously when updating v, that's not my question. My question is related to if we need to update v when updating w, given we already calculated v.










share|improve this question







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$endgroup$











  • $begingroup$
    During backpropogation, we first need to calculate the change in v. Then, with the help of v we will calculate the change in w.
    $endgroup$
    – Shubham Panchal
    18 mins ago















0












$begingroup$


I am new to Deep Learning. Suppose that we have a neural network with one input layer, one output layer, and one hidden layer. Let's refer to the weights from input to hidden as w and the weights from hidden to output as v. Suppose that we have initialized w and v, and ran them through the neural network via the Feedforward algorithm. Suppose that we have calculated v via backprogagation. When estimating the ideal weights for w, do we keep the weights v constant when updating w via gradient descent given we already calculated v, or do we allow v to update along with w?



I understand that both w and v should update simultaneously when updating v, that's not my question. My question is related to if we need to update v when updating w, given we already calculated v.










share|improve this question







New contributor




Joshua Jones is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.







$endgroup$











  • $begingroup$
    During backpropogation, we first need to calculate the change in v. Then, with the help of v we will calculate the change in w.
    $endgroup$
    – Shubham Panchal
    18 mins ago













0












0








0





$begingroup$


I am new to Deep Learning. Suppose that we have a neural network with one input layer, one output layer, and one hidden layer. Let's refer to the weights from input to hidden as w and the weights from hidden to output as v. Suppose that we have initialized w and v, and ran them through the neural network via the Feedforward algorithm. Suppose that we have calculated v via backprogagation. When estimating the ideal weights for w, do we keep the weights v constant when updating w via gradient descent given we already calculated v, or do we allow v to update along with w?



I understand that both w and v should update simultaneously when updating v, that's not my question. My question is related to if we need to update v when updating w, given we already calculated v.










share|improve this question







New contributor




Joshua Jones is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.







$endgroup$




I am new to Deep Learning. Suppose that we have a neural network with one input layer, one output layer, and one hidden layer. Let's refer to the weights from input to hidden as w and the weights from hidden to output as v. Suppose that we have initialized w and v, and ran them through the neural network via the Feedforward algorithm. Suppose that we have calculated v via backprogagation. When estimating the ideal weights for w, do we keep the weights v constant when updating w via gradient descent given we already calculated v, or do we allow v to update along with w?



I understand that both w and v should update simultaneously when updating v, that's not my question. My question is related to if we need to update v when updating w, given we already calculated v.







neural-network deep-learning backpropagation






share|improve this question







New contributor




Joshua Jones is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.











share|improve this question







New contributor




Joshua Jones is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.









share|improve this question




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asked 44 mins ago









Joshua JonesJoshua Jones

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New contributor





Joshua Jones is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.






Joshua Jones is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.











  • $begingroup$
    During backpropogation, we first need to calculate the change in v. Then, with the help of v we will calculate the change in w.
    $endgroup$
    – Shubham Panchal
    18 mins ago
















  • $begingroup$
    During backpropogation, we first need to calculate the change in v. Then, with the help of v we will calculate the change in w.
    $endgroup$
    – Shubham Panchal
    18 mins ago















$begingroup$
During backpropogation, we first need to calculate the change in v. Then, with the help of v we will calculate the change in w.
$endgroup$
– Shubham Panchal
18 mins ago




$begingroup$
During backpropogation, we first need to calculate the change in v. Then, with the help of v we will calculate the change in w.
$endgroup$
– Shubham Panchal
18 mins ago










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