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A Review of Independent Component Analysis Techniques and their Applications

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Author(s): Acharya D | Panda G

Journal: IETE Technical Review
ISSN 0256-4602

Volume: 25;
Issue: 6;
Start page: 320;
Date: 2008;
Original page

Keywords: Blind source separation | Higher order statistics | Independent component analysis.

ABSTRACT
Independent Component Analysis, a computationally efficient blind statistical signal processing technique, has been an area of interest for researchers for many practical applications in various fields of science and engineering. The present paper attempts to treat the fundamental concepts involved in the independent component analysis (ICA) technique and reviews different ICA algorithms. A thorough discussion of the algorithms with their merits and weaknesses has been carried out. Applications of the ICA algorithms in different fields of science and technology have been reviewed. The limitations and ambiguities of the ICA techniques developed so far have also been outlined. Though several articles have reviewed the ICA techniques in literature, they suffer from the limitation of not being comprehensive to a first time reader or not incorporating the latest available algorithm and their applications. In this work, we present different ICA algorithms from their basics to their potential applications to serve as a comprehensive single source for an inquisitive researcher to carry out his work in this field.
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