KwickClips Artificial Intelligence · 37 sec · free
What is a pure group?
Short answer. All answers are the same.
What happens after a split?
Repeat in each group.
Splitting data
| Try each question |
| Check group purity |
| Keep the purest split |
Remember
| Pure: all answers same |
| Repeat in each group |
How does a tree pick its first question? It tests them all. Try each question. Check if groups have the same answers. Keep the purest split. Pure means all answers match. Repeat in each group.
This clip is from the full lesson: Decision Trees — 6 minutes, with the tables, the quick answers and the whole lesson in text.
Useful for: CBSE Class 10 Artificial Intelligence (417)
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