See also

• Refer to the official documentation of the sklearn.cluster.AgglomerativeClustering function: https://scikit-learn.org/stable/modules/generated/sklearn.cluster.AgglomerativeClustering.html
• Refer to Hierarchical agglomerative clustering (from Stanford University): https://nlp.stanford.edu/IR-book/html/htmledition/hierarchical-agglomerative-clustering-1.html