Fig. 6
From: Evaluating soil nutrients of Dacrydium pectinatum in China using machine learning techniques
Box-whisker plot of accuracy. GRNN is the generalized regression neural networks; FPNN is the field probing neural network; MLPNN is the multilayer-propagation feed forward neural network; BPNN is the back-propagation neural network. AUC is the area under the curve. The AUC represents classification performance, which is the ability of the target model to correctly classify the different outputs