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Effects of Irregular Topology in Spherical Self-Organizing Maps

  • Charles R. Schmidt

    ()

    (School of Geographical Sciences, Arizona State University, Tempe, AZ, USA)

  • Sergio J. Rey

    (School of Geographical Sciences, Arizona State University, Tempe, AZ, USA)

  • André Skupin

    (Department of Geography, San Diego State University, San Diego, CA, USA)

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    The authors explore the effect of different topologies on properties of self-organizing maps (SOM). They suggest several diagnostics for measuring topology-induced errors in SOM and use these in a comparison of four different topologies. The results show that SOM is less sensitive to localized irregularities in the network structure than the literature may otherwise suggest. Further, the results support the use of spherical topologies as a solution to the boundary problem in traditional SOM.

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    File URL: http://irx.sagepub.com/content/34/2/215.abstract
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    Article provided by in its journal International Regional Science Review.

    Volume (Year): 34 (2011)
    Issue (Month): 2 (April)
    Pages: 215-229

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    Handle: RePEc:sae:inrsre:v:34:y:2011:i:2:p:215-229
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