Machine Learning in Plain Words

Machine learning finds rules from examples. Supervised learning uses answers, and unsupervised learning finds groups. Classification predicts a label and regression predicts a number. Overfitting means memorizing, so test on new data and use precision and recall.

Supervised learning

Learning from examples that come with answers.

Overfitting

Memorizing training examples and failing on new data.

Feature

One piece of information about each example.