Preserving the Clustering Structure by a Projection Pursuit Approach

  • Giovanna MenardiEmail author
  • Nicola Torelli
Conference paper
Part of the Studies in Classification, Data Analysis, and Knowledge Organization book series (STUDIES CLASS)


A projection pursuit technique to reduce the dimensionality of a data set preserving the clustering structure is proposed. It is based on Silverman’s (J R Stat Soc B 43:97–99, 1981) critical bandwidth. We show that critical bandwidth is scale equivariant and this property allows us to keep affine invariance of the projection pursuit solution.


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Copyright information

© Springer-Verlag Berlin Heidelberg 2010

Authors and Affiliations

  1. 1.Department of Economics and StatisticsTriesteItaly

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