KNN (Neighbors)
KNN looks at the closest examples and copies the group most of them belong to.
What it does
KNN looks at the closest examples and copies the group most of them belong to.
K: Number of neighbors • Proximity: How close items are
How it works
- Put the new item on a map with old examples.
- Find the closest neighbors.
- Give the new item the label most nearby neighbors have.
Uses & Applications
- A music app can find songs similar to songs you already like.
- A photo app can group a new picture with similar pictures.
- A store can suggest products close to what you bought before.
In short
Nearby things are often alike, like “birds of a feather flock together.”
Try it yourself
Ask the nearest dots
A new dot needs a team. It asks nearby colored dots which team to join.
Your turn
Change one setting at a time. Reset example puts everything back.
Let nearby points vote
Step 1Why this happens