Research Article
A Reliable Method for Identification of Antibiotics by Terahertz Spectroscopy and SVM
Table 2
Parameters of grid search, GA and PSO.
| Chemometric method | Features selection method | Best c | Best | Population | Iteration | Cross-validation | CVAccuracy (%) | Training set accuracy (%) | Test set accuracy (%) |
| GS-SVM | No | 0.32988 | 1 | — | — | 5 | 99.5833 | 99.7917 | 98.75 | PCA | 0.32988 | 0.32988 | — | — | 5 | 99.7917 | 99.7917 | 100 | t-SNE | 0.18946 | 0.011842 | — | — | 5 | 100 | 100 | 98.125 |
| GA-SVM | No | 6.8678 | 0.58479 | 20 | 50 | 5 | 99.7917 | 99.7917 | 99.375 | PCA | 13.1126 | 1.5594 | 20 | 50 | 5 | 100 | 100 | 99.375 | t-SNE | 0.92001 | 0.72413 | 20 | 50 | 5 | 100 | 100 | 100 |
| PSO-SVM | No | 0.1 | 0.1 | 20 | 50 | 5 | 100 | 100 | 99.375 | PCA | 10.2413 | 0.60183 | 20 | 50 | 5 | 100 | 100 | 99.375 | t-SNE | 12.591 | 0.1 | 20 | 50 | 5 | 100 | 100 | 100 |
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