Week 9 ยท 45-60 min

Model Evaluation

Week Summary

A quick preview of the main ideas in this week before you begin the slides.

  • Why Evaluate Models?
  • Accuracy for Classification
  • The Confusion Matrix
  • Precision and Recall (Conceptual Intro)

Glossary

Review these key terms before starting this week. They are kept simple so students can learn the new vocabulary before moving into the slides.

Why Evaluate Models?
Why Evaluate Models?
Accuracy for Classification
Accuracy for Classification
The Confusion Matrix
The Confusion Matrix
Slide 1๐Ÿ’ก

Why Evaluate Models?

Learning goal

Measure and interpret how well a model performs.

Read one card at a time. Focus on the main idea first, then look at the visual on the right to help it stick.

A model only matters if its performance is checked.

Evaluation prevents blind trust in predictions.

Testing data gives a fair performance check.

Different tasks need different metrics.

Evaluation is required, not optional, in ML.

Remember

Machine learning without evaluation is guesswork, not trustworthy analysis.

Why Evaluate Models?

Why Evaluate Models?

Slide 1 of 8

Use arrows or dots to move through the lesson

Practice

  1. Write 2-3 sentences about what you learned this week.

Coming Next Week: Next: Overfitting and Underfitting