Research Article
Resistance Spot Welding Optimization Based on Artificial Neural Network
Table 4
Calculation of the mean squared error (MSE) case of 20-unit experiment.
| Number | Shear strength (kN) | ANN prediction | Squared error | Number | Shear strength (kN) | ANN prediction | Squared error | Number | Shear strength (kN) | ANN prediction | Squared error |
| 1 | 3.598 | 3.8369 | 0.057073 | 8 | 3.611 | 3.6838 | 0.0053 | 15 | 3.626 | 3.6838 | 0.003341 | 2 | 3.485 | 3.0774 | 0.166138 | 9 | 3.585 | 3.669 | 0.007056 | 16 | 3.623 | 3.76 | 0.018769 | 3 | 3.505 | 3.592 | 0.007569 | 10 | 3.623 | 3.76 | 0.018769 | 17 | 3.623 | 3.76 | 0.018769 | 4 | 3.458 | 3.669 | 0.044521 | 11 | 3.572 | 2.9412 | 0.397909 | 18 | 3.802 | 3.9422 | 0.019656 | 5 | 3.848 | 3.8369 | 0.000123 | 12 | 3.566 | 3.592 | 0.000676 | 19 | 3.836 | 3.8369 | 0.000000 | 6 | 3.878 | 3.9422 | 0.004122 | 13 | 3.84 | 3.9422 | 0.010445 | 20 | 3.485 | 3.0774 | 0.166138 | 7 | 3.585 | 3.669 | 0.007056 | 14 | 3.525 | 3.592 | 0.004489 | | | | |
| MSE = 0.047896 |
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