DLS 2 Week 1 Programming Assignment 2 - About Notation

Course Q&A Deep Learning Specialization Improving Deep Neural Networks: Hyperparameter tun
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Hi! I need some clarification about the Regularization equation. I’m trying to learn the math procedure but I’m confused about the notation of the 5.2 equation on the Notebook. What do k and j refer to on the Regularization part? Also, the ^2 is confusing, but I know is an exponential weight.

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Thanks in advance for the answer!

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Have a look at Prof Andrew Ng’s lecture:

Your question is covered around the 5 minute mark.

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