January 2019
Intermediate to advanced
294 pages
6h 43m
English
Content preview from Machine Learning Quick Reference
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Forward propagation equation
We know the equations around it. If the input for this is a[l-1], then the output will be a[l]. However, there is a cache part, which is nothing but z[l], as shown in the following diagram:
Here, this breaks down into w[1]a[l-1] +b[l] (remember that a[0] is equal to X).
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