Optimal variable weighting for hierarchical clustering: An alternating least-squares algorithm

Geert De Soete, Wayne Desarbo, J. Douglas Carroll

Research output: Contribution to journalArticle

30 Scopus citations

Abstract

This paper presents the development of a new methodology which simultaneously estimates in a least-squares fashion both an ultrametric tree and respective variable weightings for profile data that have been converted into (weighted) Euclidean distances. We first review the relevant classification literature on this topic. The new methodology is presented including the alternating least-squares algorithm used to estimate the parameters. The method is applied to a synthetic data set with known structure as a test of its operation. An application of this new methodology to ethnic group rating data is also discussed. Finally, extensions of the procedure to model additive, multiple, and three-way trees are mentioned.

Original languageEnglish (US)
Pages (from-to)173-192
Number of pages20
JournalJournal of Classification
Volume2
Issue number1
DOIs
StatePublished - Dec 1 1985

All Science Journal Classification (ASJC) codes

  • Mathematics (miscellaneous)
  • Psychology (miscellaneous)
  • Statistics, Probability and Uncertainty
  • Library and Information Sciences

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