Mathematical Problems in Engineering / 2019 / Article / Tab 3

Research Article

Fractional-Order Accumulative Linear Time-Varying Parameters Discrete Grey Forecasting Model

Table 3

The calculation results of different grey models.

YearOriginal valueDGM(1,1) modelTDGM(1, 1) modelFTDGM(1,1) model, r=0.85
Simulation valueRelative error(%)Simulation valueRelative error (%)Simulation valueRelative error (%)

20107.417.4107.4107.410
20118.498.651.918.490.058.490.00
20129.629.461.699.650.309.640.23
201310.4410.340.9810.370.7110.331.07
201411.1911.300.9711.280.8011.452.29
201512.3512.350.0012.300.4211.973.06
MAPE1.110.461.33
201613.113.503.0513.462.7313.220.92
201713.6414.768.1814.788.3613.690.37
MAPE5.615.540.64

Source: China Statistical Yearbook.

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