Fig. 3From: Improving clustering performance using independent component analysis and unsupervised feature learningCMU-PIE ICA blind source separation. The first 20 signals are shown from a total of 68, which is the total number of possible clusters. a Each of the ICA sources on the top panel has a distinct signal. b The PCA sources do not show much separation, which is the reason for its poor clustering performanceBack to article page