Formal quality assessment of group structure mapping on the Kohonen’s map Cover Image

Formalna ocena jakości odwzorowania struktury grupowej na mapie Kohonena
Formal quality assessment of group structure mapping on the Kohonen’s map

Author(s): Krzysztof Najman, Kamila Migdał-Najman
Subject(s): Economy
Published by: Wydawnictwo Uniwersytetu Ekonomicznego we Wrocławiu
Keywords: Self Organizing Map (SOM); formal assessment of the quality mapping

Summary/Abstract: In the article the authors studied seven coefficients: mean quantization error, topographic error, distortion measure, Kaski-Lagus measure, logarithmized Nash-Sutcliffe coefficient of efficiency, Willmott’s index of agreement and the number of “dead” neurons, to assess the quality of the mapping of the group structure on the Kohonen’s map. In the ex-periment the authors used generated data sets with known spatial structure of units. The au-thors analyzed the relationship between the values of the coefficients and the structure of the test network. The authors analyzed the similarity between data clustering and pattern.

  • Issue Year: 2014
  • Issue No: 327
  • Page Range: 131-138
  • Page Count: 8
  • Language: Polish