Table 4.

Evaluation of machine learning approaches using receiver operating characteristic.

Machine learning approaches	Weather, AUCa	Air quality, AUC	Weather and air quality, AUC
Generalized linear model	0.538	0.682	0.758
Support vector machine	0.500	0.494	0.621
Adaptive boosting neural network	0.611	0.698	0.734
Tree bag	0.714	0.680	0.780
Random forest	0.669	0.692	0.809

^aAUC: area under the curve.