Machine Learning Tutorial - K-Nearest Neighbors (KNN)
👥 KNN - Neighbors Se Seekho
Real Life:
🏘️ New in Locality?
5 closest neighbors dekho:
3 doctors, 2 engineers → Likely medical area
📱 Movie Recommendation:
Friends jo similar movies dekhte → Suggest similar
How it Works
- Find K closest neighbors
- See their categories
- Majority vote wins
Example
Fruit Classifier: Apple ya Orange?
5 nearest fruits:
3 Apples + 2 Oranges → New fruit is Apple!
Example
from sklearn.neighbors import KNeighborsClassifier
knn = KNeighborsClassifier(n_neighbors=5)