Research Article
[Retracted] Economic Decision-Making Algorithm for Cross-Border Industrial E-Commerce Material Purchase Quantity Based on Markov Chain
Table 5
2011–2018 model accuracy comparison.
| Value year | Actual value (kt) | Gray G.M. (1, 1) model | Markov optimization | Predicted value (kt) | Relative error | Predicted value (kt) | Relative error |
| 2011 | 1027872.12 | 1027872.12 | 0.0000 | 1020522.83 | 0.0071 | 2012 | 1169785.69 | 1127537.58 | 0.0361 | 1153019.93 | 0.0143 | 2013 | 1128610.97 | 1135117.09 | 0.0125 | 1127001.01 | 0.0014 | 2014 | 1123319.16 | 1142747.55 | 0.0173 | 1134576.91 | 0.0100 | 2015 | 1171211.30 | 1150429.30 | 0.0177 | 1176429.01 | 0.0045 | 2016 | 1097845.74 | 1158162.70 | 0.0549 | 1151944.86 | 0.0491 | 2017 | 1133855.87 | 1165948.07 | 0.0251 | 1122691.40 | 0.0098 | 2018 | 1182999.36 | 1173785.78 | 0.0376 | 1200313.34 | 0.0146 | Mean | — | — | 0.0238 | — | 0.0139 |
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