Jean Metz,  Maria Carolina Monard. 

There is a growing interest in information analysis methods in order to extract knowledge from databases. In this context, hierarchical clustering can be used to analyse data at different levels of details. This work presents a methodology to analyse clusters generated at each level of a hierarchy, aiming to increase the understanding and interpretation of these clusters.

http://www.lbd.dcc.ufmg.br/colecoes/enia/2005/061.pdf

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