Bearing Degradation Process Prediction Based on the Support Vector Machine and Markov Model

Table 7

The corrected results of the points 1−20 based on Markov model.

Point	SVM model prediction error	Relative error (%)	SVM-Markov model prediction error	Relative error (%)
1	0	0	0	0
2	−0.0103821	579.21%	−0.006361	178.31%
3	0.002906	8.5739%	0.000603	1.7791%
4	0.0074271	20.311%	−0.001021	2.7922%
5	−0.021835	274.63%	−0.009362	117.75%
6	0.024138	30.429%	0.013254	16.708%
7	0.0059543	12.666%	0.002615	5.5628%
8	0.016244	22.459%	0.010027	13.863%
9	0.022316	33.565%	0.009565	14.386%
10	0.016692	32.417%	0.009473	18.397%
11	0.053935	73.825%	0.021563	29.515%
12	−0.0052358	34.947%	−0.002355	15.719%
13	−0.058422	107.06%	−0.019347	35.455%
14	−0.094039	122.79%	−0.014236	18.589%
15	−0.032173	263.1%	−0.009878	80.779%
16	−0.034682	159.3%	−0.008969	41.197%
17	−0.004101	355.3%	−0.001892	199.5%
18	−0.13365	117.18%	−0.050841	44.576%
19	−0.06811	120.92%	−0.028323	50.282%
20	−0.070675	135.04%	−0.014267	27.152%