Research Article
Application of a Hybrid Method Combining Grey Model and Back Propagation Artificial Neural Networks to Forecast Hepatitis B in China
Table 3
The forecasted generated by the three methods.
| Year | GM (1, 1) | GM (2, 1) | The proposal method |
| 2013 | 1216929.0 | 1045223.6 | 1077864.1 | 2014 | 1250888.2 | 1006228.6 | 1074038.2 | 2015 | 1285795.1 | 967267.6 | 1012371.7 | 2016 | 1321676.0 | 928834.0 | 976301.8 | 2017 | 1358558.3 | 891248.9 | 946959.7 | 2018 | 1396469.7 | 854715.0 | 939194.1 | 2019 | 1435439.1 | 819353.3 | 937881.5 | 2020 | 1475496.0 | 785229.0 | 937607.7 | 2021 | 1516670.7 | 752369.4 | 937531.5 |
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