Machine Learning — Important Questions

It improves as the system is exposed to more data

Machine Learning performance improves as more data is used for learning.

Predictive, Descriptive

A machine learning model may be predictive, descriptive, or both.

A spam filter trained on emails pre-labeled as spam or not spam

Supervised learning uses labeled data, and a spam filter trained on labeled emails is a direct example.

Labeled data

Supervised learning is trained on labeled data where the correct output is known.