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

Table 6

Results of ablation experiments.

Model	Detection rate	False alarm rate	Accuracy
GDN	97.49%	2.51%	97.01%
Variant 1	99.96%	49.97%	50.46%
Variant 2	89.25%	39.14%	61.13%
Variant 3	81.80%	18.36%	81.63%