A Machine Learning Approach to Predict Air Quality in California

Table 13

Confusion matrix for the AQI classifications obtained with both models for the validation set.

Validation dataset	PCA SVR-RBF			SVR-RBF
	Good	Moderate	Unhealthy	Good	Moderate	Unhealthy
Good	1161	59	0	1171	49	0
Moderate	62	420	0	48	434	0
Unhealthy	0	3	0	0	3	0

Unhealthy for sensitive groups.