Fig. 5
From: Orthogonal approach to independent component analysis using quaternionic factorization
Average SIR index as a function of sweep/iteration number, obtained using QICA (circles), symmetric FastICA (squares), and JADE algorithm (triangles) for various data distributions. a Uniform distribution. b BPSK signals. c Sub-Gaussian distribution. d Laplacian distribution. e Super-Gaussian distribution. f Speech distribution represented by randomly selected frames of the real speech recordings