A Machine Learning Approach to Predict Air Quality in California

Table 12

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

Training dataset	PCA SVR-RBF			SVR-RBF
	Good	Moderate	Unhealthy	Good	Moderate	Unhealthy
Good	2507	151	0	2549	109	0
Moderate	300	993	0	253	1040	0
Unhealthy	4	23	0	9	18	0

Unhealthy for sensitive groups.