Machine Learning Fundamentals › Overfitting & Underfitting

Why is Overfitting & Underfitting important in Machine Learning Fundamentals

Beginner

Answer

Both problems lead to a model that does not generalize well, which means it gives unreliable predictions once used in the real world. Understanding them helps you build models that actually work outside of training.
Real-world example A student who memorizes exact exam questions without understanding the topic is like an overfit model, while a student who barely studies at all is like an underfit model.

Common follow-ups: What is regularization, What is the bias variance tradeoff, What is cross validation