Prediction of Splitting Tensile Strength from Cylinder Compressive Strength of Concrete by Support Vector Machine

Table 5

Comparison of experimental results to testing results of RBF, polynomial of SVM-II, and other models.

𝑓𝑐 (MPa)	𝑓spt (MPa)	GEP-III [9]	ACI 363R	ACI 318	CEB-FIP	Regression	RBF [9]	Polynomial
36.00	3.49	−0.60	0.05	−0.13	−0.22	−0.22	−0.17	−0.04
30.40	3.08	−0.54	0.17	0.01	−0.16	−0.12	−0.10	−0.01
21.60	2.00	−0.04	0.74	0.60	0.33	0.43	0.17	0.34
21.20	2.70	−0.77	0.02	−0.12	−0.40	−0.30	−0.44	−0.39
25.10	2.60	−0.41	0.36	0.21	−0.03	0.05	−0.09	0.06
31.90	3.30	−0.67	0.03	−0.14	−0.28	−0.25	−0.26	−0.12
37.80	3.10	−0.10	0.53	0.34	0.28	0.26	0.48	0.45
29.20	2.50	−0.04	0.69	0.53	0.34	0.40	0.41	0.49
35.40	3.10	−0.25	0.41	0.23	0.13	0.14	0.19	0.32
28.60	3.40	−0.98	−0.24	−0.41	−0.59	−0.54	−0.51	−0.46
29.50	3.10	−0.62	0.10	−0.06	−0.24	−0.19	−0.23	−0.08
34.90	3.50	−0.68	−0.01	−0.19	−0.30	−0.29	−0.23	−0.11
38.60	3.38	−0.33	0.29	0.10	0.05	0.03	0.15	0.23
52.35	3.99	−0.10	0.28	0.06	0.21	0.08	0.42	0.36
38.40	3.80	−0.76	−0.14	−0.33	−0.39	−0.40	−0.23	−0.20
51.50	4.20	−0.36	0.03	−0.18	−0.05	−0.17	0.16	0.11
48.60	4.00	−0.34	0.11	−0.10	0.00	−0.11	0.11	0.16
39.50	3.90	−0.79	−0.19	−0.38	−0.42	−0.45	−0.22	−0.22
30.40	2.85	−0.31	0.40	0.24	0.07	0.11	0.13	0.22
29.50	2.56	−0.08	0.64	0.48	0.30	0.35	0.31	0.46
42.80	4.30	−0.99	−0.44	−0.64	−0.63	−0.68	−0.52	−0.46
51.90	4.30	−0.44	−0.05	−0.27	−0.13	−0.26	0.09	0.03
49.30	4.20	−0.49	−0.06	−0.27	−0.17	−0.27	0.03	0.00
43.30	3.60	−0.26	0.28	0.08	0.10	0.04	0.22	0.28
43.60	3.38	−0.02	0.52	0.32	0.34	0.28	0.46	0.52
49.90	4.57	−0.83	−0.40	−0.61	−0.50	−0.62	−0.34	−0.33
57.40	4.20	−0.01	0.27	0.04	0.26	0.09	0.54	0.39
58.50	4.90	−0.65	−0.39	−0.62	−0.38	−0.56	−0.15	−0.24
31.40	2.79	−0.19	0.52	0.35	0.20	0.23	0.26	0.36
34.90	3.04	−0.22	0.45	0.27	0.16	0.17	0.23	0.35
41.60	3.84	−0.60	−0.03	−0.23	−0.24	−0.28	−0.11	−0.05
46.80	4.00	−0.44	0.04	−0.17	−0.10	−0.19	0.01	0.09
51.70	4.20	−0.35	0.04	−0.17	−0.04	−0.16	0.18	0.12
43.30	3.90	−0.56	−0.02	−0.22	−0.20	−0.26	−0.08	−0.02
60.80	4.10	0.29	0.50	0.27	0.54	0.33	0.76	0.68
60.00	4.30	0.04	0.27	0.04	0.30	0.10	0.60	0.44
71.90	5.40	−0.37	−0.40	−0.65	−0.21	−0.51	0.16	0.00
75.10	5.40	−0.18	−0.29	−0.55	−0.06	−0.39	0.30	0.20
57.87	4.49	−0.27	0.00	−0.23	0.00	−0.18	0.27	0.15
39.50	3.40	−0.29	0.31	0.12	0.08	0.05	0.28	0.28