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arXiv · 1701.09160

ICA based on the data asymmetry

Przemysław Spurek·Jacek Tabor·Przemysław Rola·Michał Ociepka
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Abstract

Independent Component Analysis (ICA) - one of the basic tools in data analysis - aims to find a coordinate system in which the components of the data are independent. Most of existing methods are based on the minimization of the function of fourth-order moment (kurtosis). Skewness (third-order moment) has received much less attention. In this paper we present a competitive approach to ICA based on the Split Gaussian distribution, which is well adapted to asymmetric data. Consequently, we obtain a method which works better than the classical approaches, especially in the case when the underlying density is not symmetric, which is a typical situation in the color distribution in images.

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Przemysław Spurek, Jacek Tabor, Przemysław Rola, Michał Ociepka. 2017-01-31. ICA based on the data asymmetry. https://arxiv.org/abs/1701.09160

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