Hierarchical clustering can be either ______________ or ______________.Select one:a.Non-parametric, parametricb.Iterative, recursivec.Agglomerative, divisived.Unsupervised, supervised
Question
Hierarchical clustering can be either ______________ or ______________.Select one:a.Non-parametric, parametricb.Iterative, recursivec.Agglomerative, divisived.Unsupervised, supervised
Solution
The answer is c. Agglomerative, divisive. Hierarchical clustering is a method of cluster analysis which seeks to build a hierarchy of clusters. This can be achieved in two ways: Agglomerative, which is a bottom up approach where each observation starts in its own cluster, and pairs of clusters are merged as one moves up the hierarchy; and divisive, which is a top down approach where all observations start in one cluster, and splits are performed recursively as one moves down the hierarchy.
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