Visualization of incorrect signal predictions (signal predicted wrongly as noise). Note that we calculated each component’s kurtosis in the 3-C waveforms and displayed them in the subfigures. From (a)–(h), the mean kurtosis of each 3-C time-series are 3.359, 28.481, 0.086, 8.511, 14.485, 26.832, 4.922 and 0.412, respectively.