Hi, My train_step() function is returning too high total cost (AssertionError: Unexpected cost for epoch 0: 2078114.625 != 25629.055). I am computing a_G by passing ‘generated_image’ to ’ vgg_model_outputs. And Then using a_G, and precomputed a_S, and a_C to compute the costs as suggested. All the…

DLS Course 4 Week4 A2: Total cost J is too high!

Course Q&A Deep Learning Specialization Convolutional Neural Networks

paulinpaloalto January 25, 2022, 1:27am 5

I’m glad to hear you were able to find the solution. Sorry that I didn’t think to suggest the integer arithmetic issues. Normally those throw negative values. Here is a thread which goes into more detail on that.

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DLS Course 4 Week4 A2: Total cost J is too high!

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