Supervised learning
Let's go back to our dog classifier. There are in fact many such classifiers currently in use today. If you use Google images, for example, and search for "dog," it will use an image classifier to show you pictures of dogs. These classifiers are trained under a paradigm known as supervised learning.
In supervised learning, we have a large number of training examples, such as images of animals, and labels that describe what the expected outcome for those training examples is. For example, the preceding figure would come with the label "dog," while an image of a cat would come with a label "not a dog."
If we have ...
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