Can Knn be used for unsupervised learning?

Related questions

1. What is simulated annealing optimization?
2. What does Optimizer do in neural network?
3. What is RMSprop Optimizer?
4. Why does simulated annealing work?
5. How does backpropagation algorithm work?
6. Is simulated annealing complete?
7. Who invented gradient descent?
8. What is RMS prop?
9. Why is SVM used?
10. What is momentum in deep learning?

Tags

1. #significantly
2. #slows
3. #regression
4. #major
5. #machine
6. #understand
7. #supervised
8. #problems
9. #nearest
10. #classification
11. #solve
12. #drawback
13. #learning
14. #grows
15. #becoming
16. #algorithm
17. #simple
18. #neighbors
19. #implement