PSLs	pigmented skin lesions
CAD	Computer-Aided Diagnosis
DT	Decision Tree
DL	Deep Learning
PDFFEM	Pigmented deep fused features extraction method
LDA	Linear Discriminant Analysis
CNN	Convolutional Neural Network
TL	Transfer Learning
ML	Machine Learning
SVM	support vector machine
KNN	k-nearest neighbor
NN	Neural Network
ResNet	Residual Network
DCNN	Deep convolutional neural network
FixCaps	Improved Capsule network
LSTM	Long short-term memory
ACC	Accuracy
SE	Sensitivity
AUC	area under the receiver operating characteristic curve
MCC	Matthew’s correlation coefficient
SP	Specificity
PR	Precision
RC	Recall
M	millions
SGD	Stochastic gradient descent
RMSprop	Root mean square propagation
Adagrad	Adaptive gradient algorithm
Adadelta	An extension of Adagrad
Adam	Adaptive moment estimation
AdaMax	A variant of Adam
Nadam	Nesterov-accelerated adaptive moment estimation
MS	Milliseconds
CPU	Central processing unit
GPU	Graphical processing unit
TPU	Tensor Processing units
CA	Channel-wise attention
FLOPs	Floating-point operations
AKIEC	Actinic keratoses
BCC	Basal cell carcinoma
BKL	Benign keratosis
DF	Dermatofibroma
NV	Melanocytic Nevi
MEL	Melanoma
VASC	Vascular Lesion