Table 1.

Details of SLB methods.

SLB model	Pre-trained model	Input size	Feature layer	Feature vector
SLB1	AlexNet	$227\times 227\times 3$	fc6	4096
SLB2	ResNet18	$224\times 224\times 3$	fc1000	1000
SLB3	ResNet18	$224\times 224\times 3$	pool5	512
SLB4	ResNet50	$224\times 224\times 3$	fc1000	1000