Optimization of used price assessment model for new energy vehicles using machine learning
17 mars 2025
À propos de cet article
Publié en ligne: 17 mars 2025
Reçu: 12 nov. 2024
Accepté: 20 févr. 2025
DOI: https://doi.org/10.2478/amns-2025-0226
Mots clés
© 2025 Han Wang, published by Sciendo
This work is licensed under the Creative Commons Attribution 4.0 International License.
Figure 1.

Figure 2.

Figure 3.

Figure 4.

Price estimation results
Number | Real price | SVM | Stacking | ||||
---|---|---|---|---|---|---|---|
Predict price | Fitting degree | Absolute error | Predict price | Fitting degree | Absolute error | ||
1 | 4.31 | 7.33 | 1.70 | 3.02 | 5.22 | 1.21 | 0.91 |
2 | 4.57 | 4.10 | 0.90 | -0.47 | 4.40 | 0.96 | -0.17 |
3 | 14.99 | 15.66 | 1.04 | 0.67 | 14.53 | 0.97 | -0.46 |
4 | 13.61 | 17.41 | 1.28 | 3.80 | 13.88 | 1.02 | 0.27 |
5 | 20.17 | 26.26 | 1.30 | 6.09 | 20.33 | 1.01 | 0.16 |
6 | 10.59 | 15.23 | 1.44 | 4.64 | 10.77 | 1.02 | 0.18 |
7 | 8.63 | 5.03 | 0.58 | -3.60 | 7.15 | 0.83 | -1.48 |
8 | 15.67 | 16.57 | 1.06 | 0.90 | 15.69 | 1.00 | 0.02 |
9 | 4.29 | 9.49 | 2.21 | 5.20 | 4.09 | 0.95 | -0.20 |
10 | 13.64 | 10.01 | 0.73 | -3.63 | 13.96 | 1.02 | 0.32 |
11 | 4.80 | 6.34 | 1.32 | 1.54 | 4.68 | 0.98 | -0.12 |
12 | 11.75 | 15.33 | 1.30 | 3.58 | 10.37 | 0.88 | -1.38 |
13 | 10.47 | 10.14 | 0.97 | -0.33 | 10.64 | 1.02 | 0.17 |
14 | 17.39 | 21.56 | 1.24 | 4.17 | 17.11 | 0.98 | -0.28 |
15 | 16.32 | 15.11 | 0.93 | -1.21 | 16.78 | 1.03 | 0.46 |
16 | 12.23 | 16.63 | 1.36 | 4.40 | 12.91 | 1.06 | 0.68 |
17 | 22.83 | 18.67 | 0.82 | -4.16 | 22.56 | 0.99 | -0.27 |
18 | 20.52 | 23.27 | 1.13 | 2.75 | 20.72 | 1.01 | 0.20 |
19 | 15.20 | 12.79 | 0.84 | -2.41 | 15.22 | 1.00 | 0.02 |
20 | 18.88 | 16.80 | 0.89 | -2.08 | 18.00 | 0.95 | -0.88 |
R2 | 0.875 | 0.989 | |||||
MAE | 2.933 | 0.432 | |||||
RMSE | 3.357 | 0.597 | |||||
MAPE | 1.152 | 0.995 |
Influencing factor quantified table
Perspective | Influencing factor | Assessment case | Comparable case 1 | Comparable case 2 | Comparable case 3 | Comparable case 4 | Comparable case 5 | Comparable case 6 |
---|---|---|---|---|---|---|---|---|
Physical factor | First registration time | 100 | 105 | 99 | 91 | 100 | 94 | 100 |
Vehicle mileage | 100 | 100 | 95 | 94 | 93 | 97 | 95 | |
Maintenance condition | 100 | 100 | 108 | 100 | 95 | 100 | 100 | |
Functional factor | Brand | 100 | 100 | 108 | 100 | 95 | 100 | 105 |
Power | 100 | 104 | 105 | 105 | 100 | 93 | 100 | |
Gearbox type | 100 | 95 | 100 | 100 | 100 | 95 | 95 | |
Social factor | Vehicle type | 100 | 95 | 95 | 100 | 100 | 105 | 95 |
Battery life expectancy | 100 | 100 | 100 | 105 | 100 | 95 | 105 | |
Transaction price | 23 | 22 | 26 | 12 | 15 | 16 | 20 |