Research Article

PWC-ICA: A Method for Stationary Ordered Blind Source Separation with Application to EEG

Table 2

Average number of sources that are matched by a demixing solution component with absolute correlation ≥ 0.7 per experiment. Recall that Experiments 1 and 3 had 10 sources and Experiment 2 was generated by 5 sources. Bold values correspond to the significant PWC-ICA algorithms (by the Amari index) as described in Table 1.

BSS algorithmAvg. number of sources matched (≥ 0.7)
Experiment 1:
static uncoupled oscillators
Experiment 2:
static coupled sources
Experiment 3:
dynamic coupled oscillators

AMICA1.352.654.00
Extended Infomax
FastICA0
PWC-ICA ()
PWC-ICA ()
PWC-ICA ()
PWC-ICA ()4.00
PWC-ICA () Haar
PWC-ICA () Haar 5.50 3.65
PWC-ICA () Haar5.05 4.20
PWC-ICA () Haar 4.15
Hilbert complex4.50 3.75