Table 3.

Results of score matrix of training sets and validation sets in arterial phase, portal venous phase, and delay phase.

Classifiers	Category	Arterial phase	Portal venous phase	Delayed phase
KNN	Training set	0.79	0.72	0.86
	Validation set	0.56	0.76	0.52
SVM	Training set	0.88	0.77	0.82
	Validation set	0.60	0.84	0.52
XGBoost	Training set	1	0.89	0.98
	Validation set	0.72	0.80	0.56
RF	Training set	1	0.98	0.98
	Validation set	0.48	0.72	0.48
LR	Training set	0.86	0.72	0.73
	Validation set	0.68	0.76	0.64
DT	Training set	1	1	1
	Validation set	0.52	0.64	0.36