Deadlines
No class Friday (Fall Break).
- Moodle Reading Mon Oct 18, midnight
- Book Ch. 3 — How We Know What a Number Means — read for Forum 3, Fri Oct 22 (next week)
Week 7: Decision trees and hyperparameter tuning
Learning Objectives
- 07A I can train and interpret decision tree models and explain how tree depth affects overfitting and underfitting.
- 07B I can use cross-validation to evaluate model performance across multiple data splits.
- 07C I can tune model hyperparameters using grid search.
Materials
- Monday class · handout (PDF)
- Wednesday class · handout (PDF)
- No class Friday (Fall Break). This week’s practice is Practice 06, on Friday of Week 8.