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INFORMATICA, 2002, Vol. 13, No. 3, 275-286
© Institute of Mathematics and Informatics,

ISSN 0868-4952

Comparative Analysis of the Graphical Result Presentation in the SOM Software

Gintautas DZEMYDA, Olga KURASOVA

Institute of Mathematics and Informatics Akademijos 4, LT-2021 Vilnius, Lithuania E-mail: dzemyda@ktl.mii.lt

Abstract

In the paper, we analyze the software that realizes the self-organizing maps: SOM-PAK, SOM-TOOLBOX, Viscovery SOMine, Nenet, and two academic systems. Most of the software may be found in the Internet. These are freeware, shareware or demo. The self-organizing maps assist in data clustering and analyzing data similarities. The software differs one from another in the realization and visualization capabilities. The data on coastal dunes and their vegetation in Finland are used for the experimental comparison of the graphical result presentation of the software. Similarities of the systems and their differences, advantages and imperfections are exposed.

Keywords:

neural networks, SOM, mapping, visualization, correlation matrix, environmental parameters

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