Fig. 5

Tree-CNN accuracy compared with the original CNN accuracy of every category in Caltech101. a–c CaffeNet, VGG16, and GoogLeNet. The red bar represents the accuracy of the Tree-CNN which is higher than the original CNN in this category. The yellow bar represents the accuracy of the Tree-CNN which is lower than the original CNN in this category. The curve shows that the average accuracy variation changes with the increase in categories, and the average accuracy variation had been magnified ten times