Asymptotic Level Density of the Elastic Net Self-Organizing Feature Map

  • Jens Christian Claussen
  • Heinz Georg Schuster
Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 2415)


Whileas the Kohonen Self Organizing Map shows an asymptotic level density following a power law with a magnification exponent 2/3, it would be desired to have an exponent 1 in order to provide optimal mapping in the sense of information theory. In this paper, we study analytically and numerically the magnification behaviour of the Elastic Net algorithm as a model for self-organizing feature maps. In contrast to the Kohonen map the Elastic Net shows no power law, but for onedimensional maps nevertheless the density follows an universal magnification law, i.e. depends on the local stimulus density only and is independent on position and decouples from the stimulus density at other positions.


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Copyright information

© Springer-Verlag Berlin Heidelberg 2002

Authors and Affiliations

  • Jens Christian Claussen
    • 1
  • Heinz Georg Schuster
    • 1
  1. 1.Institut für Theoretische Physik und AstrophysikUniversität zu KielChristian-AlbrechtsGermany

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