Research Article
Applying Different Independent Component Analysis Algorithms and Support Vector Regression for IT Chain Store Sales Forecasting
Table 8
Forecasting accuracy comparison of the five forecasting schemes under three different forecast horizons.
| | Models | Branches | | B1 | B2 | B3 | B4 | B5 | B6 | B7 | B8 | B9 | B10 |
| | 1-month ahead forecast | | tICA-SVR | 13.97% | 16.45% | 13.92% | 15.61% | 17.75% | 15.39% | 17.49% | 12.33% | 12.40% | 14.20% | | sICA-SVR | 21.32% | 17.37% | 22.12% | 17.44% | 17.95% | 16.88% | 17.71% | 21.26% | 16.36% | 24.92% | | t-stICA-SVR | 6.64% | 6.03% | 7.20% | 7.34% | 4.81% | 7.28% | 5.03% | 4.37% | 4.33% | 11.79% | | s-stICA-SVR | 13.11% | 12.26% | 13.86% | 15.11% | 16.07% | 9.34% | 15.04% | 9.60% | 10.75% | 13.50% | | Single SVR | 24.84% | 26.93% | 25.87% | 21.58% | 25.04% | 21.76% | 22.33% | 28.75% | 21.90% | 30.36% |
| | 3-month ahead forecast | | tICA-SVR | 18.41% | 18.36% | 20.29% | 24.70% | 26.71% | 25.02% | 18.62% | 17.00% | 21.17% | 16.45% | | sICA-SVR | 28.90% | 18.96% | 30.12% | 25.61% | 26.78% | 26.56% | 19.88% | 27.76% | 24.20% | 30.01% | | t-stICA-SVR | 15.44% | 13.40% | 17.15% | 15.98% | 7.56% | 15.14% | 12.83% | 11.42% | 12.33% | 19.51% | | s-stICA-SVR | 19.16% | 19.98% | 17.63% | 18.08% | 20.45% | 16.61% | 20.17% | 12.54% | 17.77% | 15.13% | | Single SVR | 33.68% | 35.13% | 29.02% | 27.51% | 29.06% | 27.69% | 28.05% | 31.84% | 25.16% | 32.32% |
| | 6-month ahead forecast | | tICA-SVR | 33.08% | 29.36% | 33.71% | 35.05% | 35.45% | 29.95% | 31.24% | 25.77% | 31.94% | 31.48% | | sICA-SVR | 36.88% | 30.30% | 35.54% | 32.14% | 29.39% | 32.35% | 36.88% | 35.80% | 30.20% | 38.63% | | t-stICA-SVR | 20.31% | 24.34% | 22.20% | 19.87% | 22.80% | 19.65% | 23.89% | 18.69% | 22.71% | 26.42% | | s-stICA-SVR | 26.84% | 27.31% | 26.19% | 27.46% | 34.52% | 23.28% | 34.83% | 28.13% | 26.93% | 30.45% | | Single SVR | 37.10% | 40.48% | 44.76% | 36.82% | 42.79% | 38.80% | 35.86% | 47.77% | 38.06% | 50.27% |
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Note: The values in this table are MAPE.
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