February 2019
Intermediate to advanced
260 pages
6h 3m
English
Neural networks are currently learning millions of weights. Millions of weights mean millions of multiplications. This makes it essential to find a highly efficient model to do this multiplication, and that is done by using matrices. The following diagram depicts how weights are placed in a matrix:

The weight matrix here has one row and four columns, and the inputs are in another matrix. These inputs can be the outputs of the previous hidden layer.
To find the output, we need to simply perform a simple multiplication of these two matrices. This means that is the multiplication of the row and the column.
To make ...
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