What is the prerequisite for hierarchical clustering?

Related questions

1. What is Camshift algorithm?
2. Is K means supervised or unsupervised?
3. How does mean shift work?
4. What are clusters in statistics?
5. How many clusters are there in the universe?
6. Why Clustering is used?
7. Is Dbscan hierarchical clustering?
8. What is affinity propagation clustering?
9. What is mean shift clustering?
10. What is Dbscan clustering?

Tags

1. #divisive
2. #clustering
3. #involves
4. #hierarchy
5. #clusters
6. #files
7. #ordering
8. #example
9. #bottom
10. #folders
11. #agglomerative
12. #creating
13. #predetermined
14. #types
15. #there
16. #organized
17. #hierarchical