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Optimization of used price assessment model for new energy vehicles using machine learning

Han Wang

Han Wang

China Automotive Engineering Research Institute Co., LtdChongqing, China
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Wang, Han
  
17 mar 2025
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Pubblicato online: 17 mar 2025
Ricevuto: 12 nov 2024
Accettato: 20 feb 2025
DOI: https://doi.org/10.2478/amns-2025-0226
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© 2025 Han Wang, published by Sciendo
This work is licensed under the Creative Commons Attribution 4.0 International License.

Figure 1.

Stacking model fusion structure
Stacking model fusion structure

Figure 2.

Stacking price estimation fusion model prediction results
Stacking price estimation fusion model prediction results

Figure 3.

Stacking fusion model price estimation results of the first 100 samples
Stacking fusion model price estimation results of the first 100 samples

Figure 4.

Training data error
Training data error

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
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