Hi, dear colleagues I have problems with the cell called “# GRADED FUNCTION: update_parameters_with_momentum” To my understanding the formula I have to implement is this: V_dW(i) = beta * V_dW(i-1) + (1-beta) * dW(i) Consequently for i = 1 I have the problem, that there is a V_dW(i=0) needed wh…

[image] goetz: V_dW(i-1) Hi @goetz , Not sure why you are doing i-1 here, that’s no where mentioned in the formula provided in the markdown.

Hi, how can I “reset” my notebook completely?

Also note that there may be a python syntax issue there. If you use parens, it thinks you are making a function call. If what you really meant was to index a list, array or dictionary, then you must use square brackets, right? If you say dW(0) it thinks you are calling a function dW and passing it …

[image] paulinpaloalto: If what you really meant was to index a list, array or dictionary, then you must use square brackets, right? This is not the syntax. I just went “with the flow” with how the learner used it as the expression of the formula.

Oh, sorry, I meant that reply to go to the original author of the thread and not to you. :nerd_face:

Hi , yes - that was only my text here in my post … My code is v[“dW” + str(l)] = beta*v[“dW” + str(l)] + (1-beta)*parameters[‘W’ + str(l)] Best, Götz

Hi , in the markdown text above there is a formula corresponding to this code: v[“dW” + str(l)] = beta*v[“dW” + str(l)] + (1-beta)*parameters[‘W’ + str(l)] But in my opinion this line is wrong, it show say: v[“dW” + str(l)] = beta*v[“dW” + str(l-1)] + (1-beta)*parameters[‘W’ + str(l)] But then …

Course 2, Week 2, Assignment Optimization_methods

Course Q&A Deep Learning Specialization Improving Deep Neural Networks: Hyperparameter tun

saifkhanengr October 11, 2023, 11:54am 4

Read this guide to get a clean copy of your notebook.

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Course 2, Week 2, Assignment Optimization_methods

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