Notion of Information and Independent Component Analysis


Partial orderings and measures of information for continuous univariate random variables with special roles of Gaussian and uniform distributions are discussed. The information measures and measures of non-Gaussianity including the third and fourth cumulants are generally used as projection indices in the projection pursuit approach for the independent component analysis. The connections between information, non-Gaussianity and statistical independence in the context of independent component analysis is discussed in detail.

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The authors wish to express their gratitude to the anonymous referee, whose insightful comments greatly helped improving the quality of the manuscript.

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Correspondence to Una Radojičić.

Additional information

The work of K. Nordhausen has been supported by the Austrian Science Fund (FWF) Grant number P31881-N32.

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Radojičić, U., Nordhausen, K. & Oja, H. Notion of Information and Independent Component Analysis. Appl Math 65, 311–330 (2020).

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  • dispersion
  • entropy
  • kurtosis
  • partial ordering

MSC 2020

  • 62B10
  • 94A17
  • 62H99