Is reinforcement learning supervised or unsupervised?

Related questions

1. What is DDPG?
2. Why is deep learning important?
3. What is supervised learning with example?
4. What is policy gradient?
5. How is deep learning different from machine learning?
6. What is state in reinforcement learning?
7. What is the value equation?
8. What is the principle of optimality?
9. Is unsupervised learning deep learning?
10. What is value iteration?

Tags

1. #learns
2. #problems
3. #regression
4. #training
5. #supervised
6. #labeled
7. #classification
8. #where
9. #having
10. #there
11. #algorithm
12. #means
13. #areas
14. #machine
15. #similarly
16. #useful
17. #while
18. #learning