Machine Learning: Bias vs Variance

The bias-variance tradeoff is bias–variance interesting dilemma, and it’s important to understand if you ever want to do something useful in machine learning.

Let’s recap simple supervised machine learning first.

Supervised learning

To understand the bias-variance tradeoff, let’s discuss supervised machine learning for one second before moving on. When doing supervised learning, the idea is to learn to receive input and predict the correct output.