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

Table 7

The comparison of RUL prediction results of testing bearings.

Methods	RMSE	SMAPE	Score
Sutrisno’s method [13]	0.3187	0.3583	0.3066
Singleton’s method [14]	0.1161	0.3768	0.2645
Hong’s method [17]	0.0907	0.2258	0.3614
Zhu’s method [22]	0.0691	0.1549	0.3624
Guo’s method [24]	0.0860	0.1910	0.2631
Cheng’s method [29]	0.0971	0.2769	0.3035
Mao’s method [30]	0.0558	0.2399	0.4285
Li’s method [33]	0.0950	0.1516	0.3974
Proposed method	0.0653	0.1373	0.4182