Research Article
Determination of Optimal Drop Height in Free-Fall Shock Test Using Regression Analysis and Back-Propagation Neural Network
Table 3
MSE of heights by BPNN and regression analysis.
| | Item | Case | | Case 1 (cm) | Case 2 (cm) | Case 3 (cm) | Case 4 (cm) | Average MSE (cm) |
| | Training patterns | | | | | | | BPNN | 2.026 × 10−18 | 5.845 × 10−21 | 8.067 × 10−21 | 1.338 × 10−21 | 5.103 × 10−19 | | Regression | 0.0887 | 4.14 × 10−27 | 8.84 × 10−26 | 1.73 × 10−27 | 0.02218 | | Test patterns | | | | | | | BPNN | 0.0462 | 0.1406 | 3.227 | 0.013 | 0.8567 | | Regression | 0.178 | 0.112 | 3.411 | 0.046 | 0.9368 |
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