Research Article
Determination of Optimal Drop Height in Free-Fall Shock Test Using Regression Analysis and Back-Propagation Neural Network
Table 4
MSE of time duration by BPNN and regression analysis.
| | Item | Case | | Case 1 (ms) | Case 2 (ms) | Case 3 (ms) | Case 4 (ms) | Average MSE (ms) |
| | Training patterns | | | | | | | BPNN | 5.210 × 10−25 | 3.324 × 10−27 | 5.941 × 10−24 | 7.60 × 10−28 | 1.617 × 10−24 | | Regression | 2.051 × 10−5 | 0.0248 | 2.77 × 10−28 | 0.0014 | 0.00656 | | Test patterns | | | | | | | BPNN | 7.67 × 10−4 | 2.551 × 10−6 | 9.20 × 10−4 | 5.87 × 10−5 | 4.36 × 10−4 | | Regression | 5.39 × 10−4 | 0.0905 | 0.002 | 0.003 | 0.024 |
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