Automatic Traffic Anomaly Detection on the Road Network with Spatial-Temporal Graph Neural Network Representation Learning

Table 3

Abbreviation used in this paper.

Abbreviation	Full name
PCA	Principal component analysis
KNN	k-nearest neighbor
DBSCAN	Density-based spatial clustering of applications with noise
LOF	Local outlier factor algorithm
GNN	Graph neural network
GDN	Graph deviation network
AR	Autoregressive model
MA	The moving average model
ARIMA	The autoregressive integrated moving average model
LSTMs	Long short-term memory
GDL	Geometric deep learning
GCNs	Graph convolutional network
GAT	Graph attention networks
IQR	Interquartile range
SMA	Simple moving average
OCSVM	The one-class support vector machine
HBOS	The histogram-based outlier detection
COPOD	Copula-based outlier detector
IFOREST	Isolation Forest