One Versus One vs. One Versus All in Classification Models

In this quick overview, we introduce you to the concepts of one-versus-one and one-versus-all in classification. In classification models, you will often want to predict one class from another. This is called binary classification, or one-versus-one. But what if you have more than two classes to predict? This is where one-versus-all is introduced.

What you’ll learn

• Difference between one-versus-one and one-versus-all classification techniques

• Where to use a particular classification technique