Midpoint radius self-organizing maps for interval-valued data with telecommunications application

  • Authors:
  • Pierpaolo D'Urso;Livia De Giovanni

  • Affiliations:
  • Dipartimento di Analisi Economiche e Sociali, Sapienza - Universití di Roma, P.za Aldo Moro, 5 - 00185, Rome, Italy;Dipartimento di Scienze Economiche e Aziendali, LUISS Guido Carli, Viale Romania, 32, 00197 Roma, Italy

  • Venue:
  • Applied Soft Computing
  • Year:
  • 2011

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Abstract

The aim of this paper is to cluster units (objects) described by interval-valued information by adopting an unsupervised neural network approach. By considering a suitable distance measure for interval data, self-organizing maps to deal with interval-valued data are suggested. The technique, called midpoint radius self-organizing maps (MR-SOMs), recovers the underlying structure of interval-valued data by using both the midpoints (or centers) and the radii (a measure of the interval width) information. In order to show how the method MR-SOMs works a suggestive application on telecommunication market segmentation is described.