Table 2.

Feature layer and feature vector characteristics of CNN models

CNN models	Feature layer	Feature vector
AlexNet	fc6	4096
VGG16	fc6	4096
VGG19	fc6	4096
Xception	Predictions	1000
ResNet18	Fc1000	1000
ResNet50	Fc1000	1000
ResNet101	Fc1000	1000
InceptionV3	Predictions	1000
InceptionResNetV2	Predictions	1000
GoogleNet	Loss3-classifier	1000
DenseNet201	Fc1000	1000