Research Article

A Reliable Method for Identification of Antibiotics by Terahertz Spectroscopy and SVM

Table 3

Identification results of all chemometric methods.

Chemometric methodFeatures selection methodMean accuracy in calibration set (%)Mean accuracy in prediction set (%)Training time (s)

GS-SVMNo99.1598.1996.61
PCA99.4899.7119.77
t-SNE99.8599.7922.76

GA-SVMNo99.3499.14118.29
PCA99.6499.7628.79
t-SNE99.9099.8155.83

PSO-SVMNo99.7799.68243.59
PCA99.8199.6747.04
t-SNE99.8299.9153.26