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