Selection of variables for cluster analysis and classification rules

• Autores: Ricardo Fraiman, Ana Justel, Marcela Svarc
• Localización: Journal of the American Statistical Association, ISSN 0162-1459, Vol. 103, Nº 483, 2008
• Idioma: inglés
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• Resumen

  • In this article we introduce two procedures for variable selection in cluster analysis and classification rules. One is mainly aimed at detecting the noisy noninformative variables, while the other also deals with multicollinearity and general dependence. Both methods are designed to be used after a "satisfactory" grouping procedure has been carried out. A forward-backward algorithm is proposed to make such procedures feasible in large datasets. A small simulation is performed and some real data examples are analyzed. [PUBLICATION ABSTRACT]