Research Article

Rolling Bearing Fault Diagnosis Using Modified Neighborhood Preserving Embedding and Maximal Overlap Discrete Wavelet Packet Transform with Sensitive Features Selection

Figure 20

The diagnosis results of models using MODWPT for the testing sets of two cases with the use of FSASD and different dimensionality reduction methods. The output dimension sizes of PCA, LDA, and SNPEL are 20, 11, and 20, respectively. The “NO” represents the model without using dimensionality reduction method.