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

Table 4

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

𝑓𝑐 (MPa)	𝑓spt (MPa)	GEP-III [9]	ACI 363R	ACI 318	CEB-FIP	Regression [9]	RBF	Polynomial
77.90	5.45	−0.08	−0.24	−0.51	0.02	−0.33	0.48	0.32
57.10	3.13	1.03	1.33	1.10	1.32	1.15	1.74	1.45
71.60	4.90	0.11	0.09	−0.16	0.27	−0.02	0.81	0.51
44.10	3.91	−0.52	0.01	−0.19	−0.17	−0.23	0.28	−0.17
64.80	4.57	0.04	0.18	−0.06	0.27	0.03	0.73	0.42
42.60	3.66	−0.36	0.19	0.00	0.00	−0.05	0.47	−0.04
30.40	2.79	−0.26	0.46	0.30	0.13	0.17	0.46	0.00
46.80	3.89	−0.34	0.15	−0.06	0.01	−0.08	0.49	0.04
89.50	5.91	0.11	−0.33	−0.61	0.09	−0.36	0.73	0.41
66.90	4.55	0.19	0.28	0.03	0.39	0.14	0.96	0.59
76.10	5.47	−0.21	−0.32	−0.58	−0.08	−0.42	0.41	0.22
53.60	4.37	−0.41	−0.05	−0.27	−0.11	−0.25	0.47	−0.02
64.80	5.07	−0.46	−0.32	−0.56	−0.23	−0.47	0.23	−0.08
45.80	4.02	−0.53	−0.03	−0.23	−0.18	−0.26	0.40	−0.16
37.60	3.16	−0.17	0.46	0.27	0.21	0.19	0.63	0.14
53.10	4.08	−0.15	0.22	0.00	0.16	0.02	0.78	0.24
34.90	3.50	−0.68	−0.01	−0.19	−0.30	−0.29	0.12	−0.40
53.90	5.40	−1.42	−1.07	−1.29	−1.12	−1.27	−0.62	−1.00
46.50	3.80	−0.27	0.22	0.02	0.08	−0.01	0.60	0.07
13.80	1.70	−0.29	0.49	0.38	0.03	0.17	−0.42	−0.17
67.10	4.80	−0.05	0.03	−0.21	0.15	−0.10	0.64	0.35
20.30	3.40	−1.53	−0.74	−0.88	−1.17	−1.06	−1.26	−1.36
22.40	2.10	−0.09	0.69	0.55	0.28	0.38	0.38	0.10
61.40	4.30	0.12	0.32	0.09	0.37	0.16	0.79	0.51
33.10	3.00	−0.29	0.39	0.22	0.09	0.11	0.53	−0.03
79.00	5.60	−0.17	−0.36	−0.62	−0.08	−0.44	0.46	0.21
43.60	3.60	−0.24	0.30	0.10	0.12	0.06	0.59	0.10
25.60	2.42	−0.20	0.57	0.41	0.19	0.26	0.31	0.02
26.20	2.62	−0.36	0.40	0.25	0.03	0.10	0.23	−0.15
16.90	1.88	−0.25	0.55	0.42	0.10	0.23	−0.13	−0.10
14.90	1.71	−0.22	0.57	0.45	0.11	0.25	−0.38	−0.08
27.30	2.81	−0.48	0.27	0.12	−0.09	−0.03	0.19	−0.26
28.40	2.87	−0.47	0.27	0.11	−0.08	−0.02	0.22	−0.23
16.90	1.91	−0.28	0.52	0.39	0.07	0.20	−0.16	−0.13
16.90	2.11	−0.48	0.32	0.19	−0.13	0.00	−0.36	−0.33
30.90	2.92	−0.35	0.36	0.19	0.03	0.07	0.31	−0.10
32.30	3.08	−0.43	0.27	0.10	−0.04	−0.01	0.36	−0.17
19.60	2.22	−0.40	0.39	0.26	−0.04	0.08	−0.10	−0.22
19.10	2.08	−0.30	0.50	0.37	0.06	0.18	−0.11	−0.10
35.30	3.24	−0.40	0.27	0.09	−0.01	−0.01	0.38	−0.11
38.40	3.36	−0.32	0.30	0.11	0.05	0.04	0.57	−0.03
22.50	2.47	−0.45	0.33	0.19	−0.08	0.02	−0.05	−0.27
23.40	2.57	−0.49	0.28	0.14	−0.12	−0.02	−0.08	−0.29
31.00	2.90	−0.33	0.38	0.22	0.06	0.10	0.35	−0.06
17.00	2.30	−0.66	0.13	0.01	−0.32	−0.18	−0.60	−0.51
47.00	4.00	−0.44	0.04	−0.16	−0.09	−0.18	0.44	−0.09
37.00	3.60	−0.65	−0.01	−0.19	−0.27	−0.28	0.21	−0.35
42.00	4.00	−0.74	−0.18	−0.37	−0.38	−0.42	0.16	−0.39
54.00	4.60	−0.62	−0.26	−0.48	−0.31	−0.46	0.21	−0.24
42.00	4.40	−1.14	−0.58	−0.77	−0.78	−0.82	−0.24	−0.79
62.00	5.20	−0.75	−0.55	−0.79	−0.50	−0.72	0.03	−0.35
67.00	4.25	0.49	0.58	0.33	0.70	0.44	1.15	0.91
72.50	5.10	−0.04	−0.08	−0.33	0.12	−0.19	0.56	0.38
74.50	5.20	−0.03	−0.11	−0.37	0.11	−0.21	0.59	0.38
79.50	5.75	−0.29	−0.49	−0.76	−0.20	−0.57	0.30	0.11
78.00	5.15	0.22	0.06	−0.20	0.33	−0.03	0.83	0.60
85.00	5.75	0.02	−0.31	−0.59	0.05	−0.36	0.69	0.44
86.00	4.80	1.03	0.67	0.39	1.05	0.62	1.67	1.40
90.50	4.40	1.68	1.21	0.93	1.65	1.19	2.32	2.04
54.80	3.34	0.69	1.03	0.81	0.99	0.83	1.61	1.06
32.90	2.85	−0.16	0.53	0.36	0.23	0.25	0.68	0.11
34.50	2.92	−0.13	0.55	0.37	0.26	0.27	0.66	0.13
53.60	3.48	0.48	0.84	0.62	0.78	0.64	1.36	0.87
74.10	5.26	−0.11	−0.18	−0.44	0.03	−0.29	0.58	0.30
67.70	4.81	−0.03	0.04	−0.20	0.17	−0.09	0.68	0.37
84.20	6.57	−0.85	−1.16	−1.43	−0.81	−1.21	−0.25	−0.46
75.30	5.35	−0.13	−0.23	−0.49	0.00	−0.33	0.48	0.28
102.30	7.29	−0.55	−1.32	−1.63	−0.73	−1.29	0.52	−0.31
40.10	3.30	−0.16	0.44	0.25	0.21	0.18	0.70	0.15
40.50	3.40	−0.23	0.35	0.16	0.14	0.10	0.57	0.07
95.50	5.70	0.66	0.07	−0.23	0.57	0.06	1.53	0.96
35.20	3.17	−0.33	0.33	0.15	0.05	0.06	0.48	−0.05
57.50	3.69	0.51	0.78	0.56	0.78	0.60	1.29	0.86
38.60	3.38	−0.33	0.29	0.10	0.05	0.03	0.52	−0.04
61.50	4.48	−0.05	0.15	−0.09	0.19	−0.02	0.70	0.32
47.40	3.76	−0.17	0.30	0.10	0.17	0.08	0.67	0.18
47.10	3.68	−0.11	0.37	0.16	0.23	0.14	0.86	0.23
44.70	3.26	0.17	0.68	0.48	0.52	0.45	1.09	0.46
52.40	3.99	−0.10	0.28	0.06	0.21	0.08	0.79	0.27
57.90	4.49	−0.27	0.00	−0.23	0.00	−0.18	0.61	0.12
39.50	4.04	−0.93	−0.33	−0.52	−0.56	−0.59	0.00	−0.65
36.70	4.03	−1.09	−0.46	−0.64	−0.72	−0.72	−0.29	−0.82
38.00	3.65	−0.63	−0.01	−0.20	−0.26	−0.28	0.20	−0.35
24.20	2.20	−0.07	0.70	0.55	0.31	0.40	0.38	0.14
17.40	1.80	−0.13	0.66	0.54	0.21	0.34	−0.06	0.02
29.30	2.80	−0.33	0.39	0.23	0.05	0.10	0.27	−0.09
27.00	2.55	−0.23	0.52	0.36	0.15	0.22	0.33	−0.02
32.60	3.21	−0.53	0.16	−0.01	−0.15	−0.12	0.26	−0.26
46.30	5.20	−1.67	−1.19	−1.39	−1.33	−1.41	−0.76	−1.37
35.80	4.30	−1.42	−0.77	−0.95	−1.04	−1.04	−0.57	−1.11
43.10	4.18	−0.85	−0.31	−0.50	−0.49	−0.55	−0.04	−0.51
35.20	3.17	−0.33	0.33	0.15	0.05	0.06	0.48	−0.05
57.50	3.69	0.51	0.78	0.56	0.78	0.60	1.29	0.86
42.80	4.90	−1.59	−1.04	−1.24	−1.23	−1.28	−0.76	−1.26
61.50	4.48	−0.05	0.15	−0.09	0.19	−0.02	0.70	0.32
47.40	3.76	−0.17	0.30	0.10	0.17	0.08	0.67	0.18
47.13	3.68	−0.10	0.37	0.16	0.23	0.14	0.86	0.23
44.73	3.26	0.17	0.69	0.49	0.52	0.45	1.04	0.50
34.60	4.10	−1.30	−0.63	−0.81	−0.91	−0.90	−0.51	−1.02
59.70	5.40	−1.08	−0.84	−1.07	−0.82	−1.01	−0.30	−0.69
51.90	4.00	−0.14	0.25	0.03	0.17	0.04	0.76	0.21
50.00	3.90	−0.15	0.27	0.06	0.17	0.06	0.77	0.22
48.50	4.10	−0.44	0.01	−0.20	−0.11	−0.21	0.49	−0.08
48.80	3.70	−0.02	0.42	0.21	0.31	0.20	0.80	0.32
46.50	3.80	−0.26	0.22	0.02	0.08	−0.01	0.60	0.07
45.20	4.00	−0.54	−0.03	−0.24	−0.19	−0.27	0.30	−0.21
45.20	3.30	0.16	0.67	0.46	0.51	0.43	1.00	0.49
42.60	2.98	0.32	0.87	0.68	0.68	0.63	1.15	0.64
81.60	4.40	1.19	0.93	0.66	1.24	0.86	1.80	1.58
42.70	3.00	0.31	0.86	0.66	0.66	0.61	1.21	0.64
41.90	3.50	−0.24	0.32	0.12	0.12	0.07	0.60	0.09
41.20	3.80	−0.59	−0.01	−0.21	−0.22	−0.26	0.31	−0.26
39.70	2.70	0.42	1.02	0.83	0.79	0.76	1.24	0.73
65.50	5.50	−0.84	−0.73	−0.97	−0.63	−0.87	−0.21	−0.47
39.50	3.70	−0.59	0.01	−0.18	−0.22	−0.25	0.34	−0.31
17.10	1.90	−0.25	0.54	0.42	0.09	0.22	−0.11	−0.10
12.10	1.10	0.18	0.95	0.85	0.48	0.64	0.00	0.31
12.90	1.60	−0.26	0.52	0.41	0.05	0.20	−0.48	−0.13
16.90	1.50	0.13	0.93	0.80	0.48	0.61	0.25	0.28
24.50	2.50	−0.35	0.42	0.27	0.03	0.12	0.16	−0.16