January 2019
Intermediate to advanced
294 pages
6h 43m
English
Content preview from Machine Learning Quick Reference
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Backpropagation
Backpropagation takes place once feed forward is completed. It stands for backward propagation of errors. In the case of neural networks, this step begins to compute the gradient of error function (loss function) with respect to the weights. One can wonder why the term back is associated with it. It's due to gradient computation that starts backwards through the network. In this, the gradient of the final layer of weights gets calculated first and the the weights of the first layer are calculated last.
Backpropagation needs three elements:
- Dataset: A dataset that consists of pairs of input-output
where is the input and
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