March 2020
Beginner to intermediate
342 pages
8h 38m
English
Do you remember the concept of a decision boundary, introduced back in Tracing a Boundary? Soon enough, you’ll see how a neural network’s decision boundary changes as you add a fourth layer. For that purpose, I prepared a dataset that’s twisty, but also easy to visualize. Here it is:

This dataset has two input variables and two classes, visualized here as squares and triangles. If you happen to be a fan of marsupials, you might notice that the dataset happens to be shaped like an echidna:[23]

My wife and I still remember an ...
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