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From linear adaptive filtering to nonlinear information processing - The design and analysis of information processing systems

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2 Author(s)
Deniz Erdogmus ; Dept. of Comput. Sci. & Electr. Eng., Oregon Health & Sci. Univ., OR ; Jose C. Principe

Recent advances in computing capabilities and the interest in new challenging signal processing problems that cannot be successfully solved using traditional techniques have sparked an interest in information-theoretic signal processing techniques. Adaptive nonlinear filters that process signals based on their information content have become a major focus of interest. The design and analysis of such nonlinear information processing systems is demonstrated in this paper. Theoretical background on necessary information theoretic concepts are provided, nonparametric sample estimators for these quantities are derived and discussed, the use of these estimators for various statistical signal processing problems have been illustrated. These include data density modeling, system identification, blind source separation, dimensionality reduction, image registration, and data clustering

Published in:

IEEE Signal Processing Magazine  (Volume:23 ,  Issue: 6 )