Chapter 4
Prediction Tasks
“I know that two and two make four, though I must say that if by any sort of process I could convert 2 and 2 into five, well, that would give me much greater pleasure.”
—Lord George Gordon Byron, letter to future Lady Byron, 1812
Machine learning—and everything else that falls under the umbrella of artificial intelligence—addresses applications of two main scenarios: prediction and classification.
Prediction is about guessing numbers. More precisely, it is about identifying a mathematical function whose curve well approximates the (present and future) distribution of data faced in a specific business context.
Classification is about identifying the category an object belongs to. An object is intended as a data item ...
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