Remaining Useful Life Prediction of Milling Tool Based on Pyramid CNN

Table 5

Performance estimation result of four different networks.

Testing datasets		Network-1	Network-2	Network-3	PCNN
C1	Score	40.152 ± 7.486	42.934 ± 5.063	47.013 ± 4.828	53.962 ± 1.813
	RMSE	29.407 ± 1.712	25.122 ± 1.592	23.114 ± 1.581	19.374 ± 0.923
C2	Score	40.274 ± 7.397	43.771 ± 4.811	48.167 ± 4.765	52.217 ± 1.872
	RMSE	28.903 ± 1.664	24.913 ± 1.428	23.022 ± 1.412	19.139 ± 0.853
C3	Score	39.914 ± 8.152	43.912 ± 4.702	48.369 ± 4.105	52.771 ± 1.617
	RMSE	29.729 ± 1.677	24.502 ± 1.437	23.216 ± 1.241	19.424 ± 0.721
C4	Score	40.889 ± 7.109	44.068 ± 4.155	48.154 ± 3.907	54.248 ± 1.712
	RMSE	28.597 ± 1.402	23.662 ± 1.339	22.901 ± 1.209	19.051 ± 0.804

The bold values express that the PCNN has the best performance.