Hierarchical clustering

Hierarchical Clustering is a method of clustering which build a hierarchy of clusters. It could be Agglomerative or Divisive. Agglomerative: At the first step, every item is a cluster, then clusters based on their distances are merged and form bigger clusters till all data is in one cluster (Bottom Up). The complexity is \( O (n^2log(n) ) \). Divisive: At the beginning, […]