03. Model Evaluation
6 Docs
Last Updated: May 8, 2026
Evaluation Metrics for Regression
You trained a model. It gives predictions. But how good are they? Are they...
Last Updated: May 8, 2026
Evaluation Metrics for Classification
“You built a cancer detection model. It says 99% accurate. Sounds great. But what...
Last Updated: May 8, 2026
Confusion Matrix
“Your model says ‘SPAM’. But was it right? Your model says ‘NOT SPAM’. Was...
Last Updated: May 8, 2026
ROC Curve and AUC Score
“You changed the threshold of your model. Now it catches more fraud. But also...
Last Updated: May 8, 2026
Learning Curves
“Your model is performing badly. But why? Is it too simple? Too complex? Not...
Last Updated: May 8, 2026
When to Use Which Metric
No single metric works for every problem. Your choice depends on three things: your...