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. 2021 Aug 30;21(17):5832. doi: 10.3390/s21175832

Figure 11.

Figure 11

Resulting 2D representation of the data distribution of the mapped feature spaces by their corresponding SAE when all feature spaces domains are considered under the proposed fusion scheme (TD + FD + TFD) of all available signals (vibrations and stator current) are taken into account by the T-SNE for each different bearing technology: (a) metallic, (b) hybrid and (c) full ceramic.