Research Article

Application of Serum Mid-Infrared Spectroscopy Combined with Machine Learning in Rapid Screening of Breast Cancer and Lung Cancer

Figure 5

Fine KNN training station: (a) three-dimensional display of the spatial distribution of the principal component dimension reduction spectrum (PC1, PC2, PC3 as examples); (b) scatter plot: two-dimensional plane displays principal component dimension reduction spectral training and cross-validation results (PC1, PC2, PC3); (c) confusion matrix; (d) receiver operating characteristic curve.
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