A Novel Method for Remaining Useful Life Prediction of Roller Bearings Involving the Discrepancy and Similarity of Degradation Trajectories

Table 11

The DTW distances between and for prediction moment at 75%.

Training bearings	Testing bearings
	B 1_3	B 1_4	B 1_5	B 2_3	B 2_4	B 2_5	B 3_3	B 3_4	B 3_5
B 1_1	0.3885	0.1917	1.8845	0.5833	0.0317	0.5604	4.4785	5.1261	3.0559
B 1_2	0.0265	0.1847	8.3485	0.0587	0.0337	2.3187	15.6125	16.6287	3.3279
B 2_1	0.2763	1.2976	1.0251	0.5211	0.5866	0.2730	2.5395	2.8445	18.116
B 2_2	0.0414	0.3880	5.2916	0.0689	0.0471	1.1667	11.1385	12.4954	3.45680
B 3_1	0.8931	16.3583	4.5686	0.3993	2.8968	0.98720	8.4642	9.1995	177.3139
B 3_2	0.6146	5.4613	1.1846	1.5713	0.9797	0.5043	2.052	2.3015	134.2678