Table 4.

Result of k-fold cross-validation for splitting tensile strength.

AdaBoost					Decision Tree
K-Fold	MAE	MSE	RMSE	R2	K-Fold	MAE	MSE	RMSE	R2
1	0.76	1.44	1.20	0.91	1	0.52	0.50	0.71	0.73
2	1.04	2.37	1.54	0.88	2	1.76	7.02	2.65	0.88
3	0.78	1.39	1.18	0.74	3	0.77	0.98	0.99	0.97
4	0.84	1.82	1.35	0.90	4	1.41	3.45	1.86	0.91
5	0.45	0.28	0.53	0.98	5	1.17	2.72	1.65	0.79
6	1.11	2.13	1.46	0.95	6	1.25	3.68	1.92	0.84
7	0.93	2.62	1.62	0.79	7	1.20	4.24	2.06	0.80
8	1.31	3.31	1.82	0.81	8	1.25	2.22	1.49	0.96
9	0.59	0.57	0.76	0.93	9	0.43	0.57	0.75	0.91
10	1.16	3.57	1.89	0.87	10	1.85	5.15	2.27	0.85