Title
Semi-nonnegative Independent Component Analysis: The (3, 4)-SENICAexp Method
Abstract
To solve the Independent Component Analysis (ICA) problem under the constraint of nonnegative mixture, we propose an iterative algorithm, called (3,4)-SENICA(exp). This method profits from some interesting properties enjoyed by third and fourth order statistics in the presence of mixed independent processes, imposing the nonnegativity of the mixture by means of an exponential change of variable. This process allows us to obtain an unconstrained problem, optimized using an ELSALS-like procedure. Our approach is tested on synthetic magnetic resonance spectroscopic imaging data and compared to two existing ICA methods, namely SOBI and CoM2.
Year
DOI
Venue
2010
10.1007/978-3-642-15995-4_76
Lecture Notes in Computer Science
DocType
Volume
ISSN
Conference
6365
0302-9743
Citations 
PageRank 
References 
0
0.34
6
Authors
6
Name
Order
Citations
PageRank
Julie Coloigner141.50
Laurent Albera225024.44
Ahmad Karfoul3677.89
Amar Kachenoura49312.88
Pierre Comon53856716.85
Lotfi Senhadji624231.96