Unit 2 · Lesson 2.4 · Start1 / 11
Unit 2 · Lesson 2.4
2.4
How good is it, really?
“Ours is 96%!” “On what?” One bottle, one moment. On fifteen held-back items: 80% — and it missed every battery.
Today you will
- Score a model on unseen items
- Break accuracy down by class
- Decide which mistake your project can't afford
40 min On the laptop