What is Machine Learning?

So as a math student, I’ve always had an interest in Big Data. So I decided to take a Stanford course online on Machine Learning!

This first question, what is Machine Learning?

The definition is “The computer program is said to learn from experience E with respect to some task T and some performance measure P, if its performance on T, as measured by P, improves with experience E.”

In other words…Machine Learning is the ability for computers to learn without explicitly being programmed. You can split this learning into categories of Supervised and Unsupervised learning.

For Supervised learning, we observe a “right answer” using some form of regression analysis.

For Unsupervised learning, we give an algorithm a bunch of data, and ask the algorithm to find structure in the data.

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