Dynamic Evolution Analysis of Desertification Images Based on BP Neural Network

Table 2

Comparison of training results of each model.

Model	Kappa	OA	Misclassification error	Omission error	Simulation error
BP	0.47	0.56	0.007	0.01	12.3158
GA-BP	0.6	0.70	0.006	0.05	11.6807
PSO-BP	0.6	0.68	0.005	0.05	11.5600
GA-PSO-BP	0.77	0.82	0.004	0.06	10.0104