Table 3.

Performance of five models on Breast Cancer test set.

NO.	Model	All variables		Using 7 important variables		Using 4 important variables
		C-index	IBS	C-index	IBS	C-index	IBS
1	DeepHit	0.72	0.18	0.76	0.18	0.75	0.20
2	N-MTLR	0.77	0.19	0.71	0.20	0.72	0.21
3	Nnet-survival	0.77	0.14	0.76	0.18	0.76	0.16
4	DeepSurve	0.75	0.15	0.74	0.20	0.74	0.19
5	Cox-Time	0.75	0.15	0.74	0.16	0.75	0.16

The bold values represent the C-index and IBS of the best-performing model with all independent variables, the six most important variables and the three most important variables in conjunction with molecular subtype status, as determined by feature importance analysis.