Kernel Local Linear Discriminate Method for Dimensionality Reduction and Its Application in Machinery Fault Diagnosis
Figure 7
Scatter plots of bearing vibration samples by different features: (a) KPCA Matrix feature of dataset1, (b) KPCA Matrix feature of dataset2, (c) NPP Manifold feature of dataset1, (d) NPP Manifold feature of dataset2, (e) LLD Manifold feature of dataset1, (f) LLD Manifold feature of dataset2, (g) KLLD Manifold feature of dataset1, and (h) KLLD Manifold feature of dataset2.
