In video ‘Neural Network Presentation’ of week 3, W [1] is shown as a (4, 3) matrix and b as (4,1) vector. From my understanding, this means that each row is equal to the parameter vectors of the first layer, and that w [2] _3 is the row vector of parameters of the fourth layer and third neuron. Appar…

Confusing about structure of matrices X and W

Mubsi November 23, 2022, 8:14am 2

Perhaps going over the Standard notations for Deep Learning, found here, will help you understand better.

Best,
Mubsi

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