Another dot in the blogosphere?

CrashCourse AI episode 3

Posted on: August 25, 2019


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The gist of this episode might read: Neural networks, anyone?

Neural networks are commonplace, but we might not be aware of them. They are used when Facebook suggests tags for photos, a diagnostic lab analyses cell samples for cancer, or a bank decides whether or not to offer a loan.

So knowing what neural networks are and how they work are important. However, this episode provided only a small taste of both with this schematic.

My marked up version of the PBS/CrashCourse graphic on a basic neural network schematic.

Marked up version of the PBS/CrashCourse graphic on a neural network schematic.

If the input layer is a query we might have and the output layer is an answer, the black box is where rules and algorithms break down and process the input.

What happens in the black box is still a mystery. We might not care how exactly a social media system knows what tags to suggest for a photo, but we probably want to know why a financial system denies us a loan.

Perhaps the next episode might shed more light on the black box.

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