Question

Explain with examples the concept of rooted trees in cluster analysis.

Answer 1

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✔✔ An important example of graph-based clusters are contiguity-based clusters, where two objects are connected only if they are within a specified distance of each other.

✔✔ One such approach (Section 8.3.2) defines a cluster as a clique; i.e., a set of nodes in a graph that are completely connected to each other.

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