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• 03:18, 1 May 2024 Rice talk contribs created page Back propagation (Created page with "'''Back propagation''' is a error calculation technique. It consists of passing a loss function ''backwards'' through a neural network layer-by-layer to update its weights. = Procedure = Consider the following RSS loss function (halved for easier derivative). <math> E = \frac{1}{2}\sum (y_i - \bf{w}\bf{x})^2 </math> After each feed-forward pass where one data point is passed through the neural network, the gradient of the loss function is computed. We compute gra...")