Single Link Clustering

Single link algorithm is an example of agglomerative hierarchical clustering method. We recall that is a bottom-up strategy: compare each point with each point. Each object is placed in a separate cluster, and at each step we merge the closest pair of clusters, until certain termination conditions are satisfied. This requires defining a notion of cluster proximity.For the single link, the proximity of two clusters is defined as the minimum of the distance between any two points in the two clusters. 

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