Estimation of Elasticity of Porous Rock Based on Mineral Composition and Microstructure

Table 6

Relative prediction error of different models for the test samples.

Test sample no.	ANN prediction						SVM prediction						PSO-SVM prediction
	𝑎𝐴		𝑎𝐵		𝑎𝐶		𝑎𝐴		𝑎𝐵		𝑎𝐶		𝑎𝐴		𝑎𝐵		𝑎𝐶
	AE	RE	AE	RE	AE	RE	AE	RE	AE	RE	AE	RE	AE	RE	AE	RE	AE	RE
1	1.0	3.8	0.3	1.2	2.7	10.0	2.8	10.8	1.0	4.0	2.2	8.1	1.1	4.2	0.3	1.2	1.5	5.6
2	1.0	3.2	3.0	11.4	1.7	6.2	4.2	13.5	3.0	11.4	2.3	8.4	1.1	3.5	1.5	5.7	0.7	2.6
3	25.5	74.1	16.5	34.0	4.1	4.9	3.9	11.3	14.5	29.8	33.1	39.9	7.8	22.7	5.8	11.9	3.3	4.0
4	5.9	12.3	10.8	21.4	6.5	12.9	6.4	13.4	6.7	13.3	6.6	13.1	5.9	12.3	4.7	9.3	7.3	14.5
5	0.9	3.1	2.5	10.3	2.9	10.7	1.5	5.2	1.5	6.2	1.4	5.2	1.1	3.8	1.8	7.4	0.5	1.9
6	4.3	14.1	5.6	20.4	1.4	4.5	2.8	9.2	2.2	8.0	4.7	15.2	0.7	2.3	4.1	15.0	1.2	3.9
7	3.2	5.5	4.6	8.1	14.8	26.9	17.9	30.8	13.2	23.2	12.1	22.0	3.0	5.2	3.6	6.3	7.8	14.2
Ave.	5.97	16.61	6.19	15.24	4.87	10.89	5.64	13.46	6.01	13.69	8.91	15.99	2.96	7.72	3.11	8.12	3.19	6.64