What is the basic idea of Hierarchical Clustering?

Options

  • A. It creates a hierarchy of clusters that can be represented using a tree-like structure called a dendrogram
  • B. It always requires the number of clusters to be fixed before learning
  • C. It uses labeled data to train a classification model
  • D. It can only be used for regression problems
  • E. None of the above

Correct Answer (Detailed Explanation is Below)

A. It creates a hierarchy of clusters that can be represented using a tree-like structure called a dendrogram

Detailed Explanation

Hierarchical Clustering creates a hierarchy of groups. It can work by repeatedly merging smaller clusters or by repeatedly splitting larger clusters. The resulting hierarchy is commonly represented using a dendrogram, which helps analyze different levels of grouping.