A closer look at the results
| Stage | Importer | Hybrid ML results | Stacked ML results | ||||
|---|---|---|---|---|---|---|---|
| RMSE | R squared | MAPE | RMSE | R squared | MAPE | ||
| Battery cell pack | Germany | 5.13 | 0.79 | 3.68 | 3.77 | 0.90 | 1.82 |
| The USA | 3.90 | 0.66 | 3.34 | 2.32 | 0.79 | 1.79 | |
| Battery cell material | China | 2.55 | 0.64 | 1.64 | 1.26 | 0.88 | 7.56 |
| Korea | 1.61 | 0.36 | 2.09 | 1.01 | 0.78 | 1.05 | |
| Japan | 2.05 | 0.22 | 1.89 | 1.14 | 0.77 | 9.95 | |
| Hungary | 3.15 | 0.19 | 2.18 | 1.88 | 0.74 | 1.34 | |
| Poland | 1.88 | 0.47 | 1.43 | 0.99 | 0.85 | 7.57 | |
| Czechia | 3.13 | 0.20 | 2.18 | 1.94 | 0.75 | 1.41 | |
| Stage | Importer | Hybrid ML results | Stacked ML results | ||||
|---|---|---|---|---|---|---|---|
| RMSE | MAPE | RMSE | MAPE | ||||
| Battery cell pack | Germany | 5.13 | 0.79 | 3.68 | 3.77 | 0.90 | 1.82 |
| The USA | 3.90 | 0.66 | 3.34 | 2.32 | 0.79 | 1.79 | |
| Battery cell material | China | 2.55 | 0.64 | 1.64 | 1.26 | 0.88 | 7.56 |
| Korea | 1.61 | 0.36 | 2.09 | 1.01 | 0.78 | 1.05 | |
| Japan | 2.05 | 0.22 | 1.89 | 1.14 | 0.77 | 9.95 | |
| Hungary | 3.15 | 0.19 | 2.18 | 1.88 | 0.74 | 1.34 | |
| Poland | 1.88 | 0.47 | 1.43 | 0.99 | 0.85 | 7.57 | |
| Czechia | 3.13 | 0.20 | 2.18 | 1.94 | 0.75 | 1.41 | |
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