Clustering Algorithms
Partitioning Alg: Construct various partitions
then evaluate them by some criterion
(CLARANS, k-medoid, O(n) calls).
Hierarchy Alg: Create a hierarchical
decomposition of the set of data (or objects)
using some criterion (merge & divisive,
difficult to find termination condition).
Density-based Alg: based on local
connectivity and density functions.
