KwickClips Artificial Intelligence · 39 sec · free
What does k mean in k-NN?
Short answer. How many neighbours vote.
Which label wins?
The one with most votes.
How k-NN votes
| Measure distance to every example |
| Pick the k closest |
| Majority label wins |
Remember
| Close points are alike |
| Most votes is the answer |
Can your neighbours tell what you are? In kay nearest neighbours, yes. Here is the method. Measure distance to every example. Pick the k closest. Their majority label wins. Close points are alike. Most votes win.
This clip is from the full lesson: Classification and the k-Nearest Neighbours Algorithm — 7 minutes, with the tables, the quick answers and the whole lesson in text.
Useful for: CBSE Class 10 Artificial Intelligence (417), CBSE Class 10 Artificial Intelligence (417), CBSE Class 11 Artificial Intelligence (843), CBSE Class 11 Artificial Intelligence (843)
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