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Independent Component Analysis for Clustering Components by Using Fixed-Point Algorithm of Secant Method and Kurtosis  

Cho, Yong-Hyun (School of Computer and Information Comm. Eng., Catholic Univ. of Daegu)
Publication Information
Journal of the Korean Institute of Intelligent Systems / v.14, no.3, 2004 , pp. 336-341 More about this Journal
Abstract
This paper proposes an independent component analysis(ICA) of the fixed-point (FP) algorithm based on secant method and the kurtosis. The FP algorithm based on secant method is applied to improve the analysis speed and performance by simplifying the calculation process of the complex derivative in Newton method, the kurtosis is applied to cluster the components. The proposed ICA has been applied to the problems for separating the 6-mixed signals of 500 samples and 8-mixed images of $512{\times}512$ pixels, respectively. The experimental results show that the proposed ICA has always a fixed analysis sequence. The result can be solved the limit of conventional ICA based on secant method which has a variable sequence depending on the running of algorithm. Especially, the proposed ICA can be used for classifying and identifying the signals or the images.
Keywords
Secant Method; Fixed-Point Algorithm; Independent Component Analysis; Kurtosis; Clustering;
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