Table 5 Statistical comparison of surface roughness prediction.

From: CBN cutting tool’s surface roughness and tool wear prediction using JOA-optimized CNN-LSTM

Metrics

Traditional SVM

ANN

RNN

LSTM

Proposed

R

0.9719

0.9903

0.9978

0.9987

0.9991

RMSE

0.0533

0.0389

0.0145

0.0125

0.0095

MAPE (%)

13.48

8.86

2.99

2.73

2.21

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