Figure 9
From: Block term decomposition for modelling epileptic seizures
H-BTD of the simulated EEG. RMSE is calculated between the time courses and spatial distributions of the simulated and reconstructed ictal source obtained from Hankel tensors with BTD for varying SNR values and varying number of components R while the rank of the factor matrices L r is kept constant, or varying L r while R is kept constant. (a) H-BTD, R = 3, sinusoid source, RMSE in time course. (b) H-BTD, R = 3, sinusoid source, RMSE in spatial distribution. (c) H-BTD, L r = 2, sinusoid source, RMSE in time course. (d) H-BTD, L r = 2, sinusoid source, RMSE in spatial distribution. (e) H-BTD, R= 3, chirp source, RMSE in time course. (f) H-BTD, R = 3, chirp source, RMSE in spatial distribution. (g) H-BTD, L r = 6, chirp source, RMSE in time course. (h) H-BTD, L r = 6, chirp source, RMSE in spatial distribution. Top: scenario i (seizure with stationary frequency). Bottom: scenario ii (seizure with varying frequency).