on Euclidean Distance -- 1.7 An Algorithm for Hierarchical Clustering -- 1.8 Other Aspects of the Cluster Problem -- 2 …. Clustering by Complete Enumeration -- 2.1 Introduction -- 2.2 The Number of Partitions of n Objects into m Non-empty Subsets -- 2 ….5 Local Operations on Trees -- 5. Clustering Based on Density Estimation -- 5.1 Mode Analysis -- 5.2 Probability Density …