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» Strong Sub- and Super-Gaussianity
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ICA
2010
Springer
13 years 2 months ago
Strong Sub- and Super-Gaussianity
We introduce the terms strong sub- and super-Gaussianity to refer to the previously introduced class of densities log-concave is x2 and log-convex in x2 respectively. We derive rel...
Jason A. Palmer, Kenneth Kreutz-Delgado, Scott Mak...
ISCAS
2005
IEEE
214views Hardware» more  ISCAS 2005»
13 years 10 months ago
Blind separation of statistically independent signals with mixed sub-Gaussian and super-Gaussian probability distributions
— In the context of Independent Component Analysis (ICA), we propose a simple method for online estimation of activation functions in order to blindly separate instantaneous mixt...
Muhammad Tufail, Masahide Abe, Masayuki Kawamata
ICA
2012
Springer
12 years 13 days ago
Contrast Functions for Independent Subspace Analysis
We consider the Independent Subspace Analysis problem from the point of view of contrast functions, showing that contrast functions are able to partially solve the ISA problem. Tha...
Jason A. Palmer, Scott Makeig
ICASSP
2008
IEEE
13 years 11 months ago
On the capacity of orientation modulation halftone channels
Clustered-dot halftones are extensively utilized in hardcopy printing. Modulation of the dot orientation in these halftones offers an avenue for data embedding which has been expl...
Orhan Bulan, Gaurav Sharma, Vishal Monga
NCI
2004
125views Neural Networks» more  NCI 2004»
13 years 6 months ago
A new approach to blind source separation with global optimal property
This paper presents a new independency metric for blind source separation (BSS) problem. It is mathematically proved that the metric value of any linear combination of source sign...
Yiu-ming Cheung, Hailin Liu