Table 5.

Regression performance comparison using estimated and actual GEX values on Dataset1 and Dataset2.

	Method	Using estimated GEX		Using actual GEX
		MAE	MSE	MAE	MSE
Dataset1	REP-ElasticNet	1.131	2.423	0.919	1.504
	REP-KNN	1.087	2.281	0.839	1.305
	REP-RandomForest	0.893	1.513	0.809	1.098
	REP-SVR	1.105	2.049	0.727	0.891
Dataset2	REP-ElasticNet	0.918	1.335	0.934	1.237
	REP-KNN	0.852	1.176	0.658	0.780
	REP-RandomForest	0.813	1.148	0.930	1.265
	REP-SVR	0.84	1.144	0.660	0.792

Columns corresponding to “estimated GEX” represent analysis in which in the test set, only the GEX values at the initial time point were used and the GEX of later time points were estimated. Columns corresponding to “actual GEX” represent analysis in which in the test set, GEX values of all time points were used.