Artificial Intelligence / Unit 8 AI 0404 short lesson, about 20 seconds
Nearest Neighbor
Captions available
The idea
The nearest-neighbor method stores the training examples and answers a new case by copying the most similar stored case's answer.
In practice
Match a new day against six stored days, count agreeing features, copy the closest day's outcome.
Where people slip
No rule is extracted — the data is the predictor, plus one load-bearing ingredient: a definition of similar.
Your place on the trail
Every lesson rests on earlier ones and opens later ones. Tap any to jump.
Builds on
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