Abbreviations	Definition
COVID-19	Coronavirus disease 2019
CDRs	Call detail records
COVID-19	Coronavirus disease 2019
SNA	Social network analysis
LSOAs	Lower super output areas
SVM	Support vector machines
RF	Random forest
KNN	K-nearest neighbors
FCM	Fuzzy c-means
GCN	Graph convolutional network
GMM	Gaussian mixture model
DBSCAN	Density-based spatial clustering of applications with noise
GBDT	Gradient boosting decision tree
GAN	Generative adversarial network
MLP	Multi-layer perceptron
DT	Decision trees
BP	Backward propagation
HC	Hierarchical clustering
LR	Logistic regression
LSTM	Long short-term memory
PCA	Principal component analysis
SDAE	Stacked denoising autoencoder
XGBoost	Extreme gradient boosting
LDA	Linear discriminant analysis
SVM-Linear	SVM with linear kernel
SVM-RBF	SVM with radial basis function kernel
CART	Classification and regression tree (CART)
Bagged CART	Bagging classification and regression trees
FRNN	Fuzzy-rough nearest neighbors
FKNN	Fuzzy k-nearest neighbor
REDCAP	Regionalization with dynamically constrained agglomerative Clustering and partitioning
SLPA	Speaker–listener label propagation algorithm
SMS	Short message service
ML	Machine learning
DL	Deep learning
PAM	Partitioning around medoids