Distances ratio method − the issue of graphical presentation of the multidimensional observation Cover Image

Metoda ilorazu odległości – zagadnienie graficznej prezentacji obserwacji wielowymiarowych
Distances ratio method − the issue of graphical presentation of the multidimensional observation

Author(s): Paweł Siarka
Subject(s): Economy
Published by: Wydawnictwo Uniwersytetu Ekonomicznego we Wrocławiu
Keywords: credit risk; pattern recognition; classification

Summary/Abstract: The article presents the author’s method of multidimensional data analysis. Its concept is based on the principle of reduction of the space dimension by projecting the observation on two-dimensional plane. The resulting image is the basis for the further visual analysis of the observation. The main objective of the presented method is to rotate the observations in such a way that the resulting image has highlighted the possible heterogeneity of the population. The proposed approach is presented against the background of the method of principal components. The results of the simulation showed that the author’s method is particularly effective in the detection of heterogeneous populations. An important advantage is no need for the prior standardization of variables, which provides a criterion function used for projection of observation.

  • Issue Year: 2012
  • Issue No: 38
  • Page Range: 268-286
  • Page Count: 19
  • Language: Polish