Prediction of Grain Yield in Henan Province Based on Grey BP Neural Network Model
BP neural network (BPNN) is widely used due to its good generalization and robustness, but the model has the defect that it cannot automatically optimize the input variables. In response to this problem, this study uses the grey relational analysis method to rank the importance of input variables, o...
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| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2021-01-01
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| Series: | Discrete Dynamics in Nature and Society |
| Online Access: | http://dx.doi.org/10.1155/2021/9919332 |
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| _version_ | 1850211059716063232 |
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| author | Bingjun Li Yifan Zhang Shuhua Zhang Wenyan Li |
| author_facet | Bingjun Li Yifan Zhang Shuhua Zhang Wenyan Li |
| author_sort | Bingjun Li |
| collection | DOAJ |
| description | BP neural network (BPNN) is widely used due to its good generalization and robustness, but the model has the defect that it cannot automatically optimize the input variables. In response to this problem, this study uses the grey relational analysis method to rank the importance of input variables, obtains the key variables and the best BPNN model structure through multiple training and learning for the BPNN models, and proposes a variable optimization selection algorithm combining grey relational analysis and BP neural network. The predicted values from the metabolic GM (1, 1) model for key variables was used as input to the best BPNN model for prediction modeling, and a grey BP neural network model prediction model (GR-BPNN) was proposed. The long short-term memory neural network (LSTM), convolutional neural network (CNN), traditional BP neural network (BP), GM (1, N) model, and stepwise regression (SR) are also implemented as benchmark models to prove the superiority and applicability of the new model. Finally, the GR-BPNN forecasting model was applied to the grain yield forecast of the whole province and subregions for Henan Province. The forecasting results found that the growth rate of grain production in Henan Province slowed down and the center of gravity for grain production shifted northwards. |
| format | Article |
| id | doaj-art-894cbcae7cf647ae947a39d72af38238 |
| institution | OA Journals |
| issn | 1026-0226 1607-887X |
| language | English |
| publishDate | 2021-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Discrete Dynamics in Nature and Society |
| spelling | doaj-art-894cbcae7cf647ae947a39d72af382382025-08-20T02:09:38ZengWileyDiscrete Dynamics in Nature and Society1026-02261607-887X2021-01-01202110.1155/2021/99193329919332Prediction of Grain Yield in Henan Province Based on Grey BP Neural Network ModelBingjun Li0Yifan Zhang1Shuhua Zhang2Wenyan Li3College of Information and Management Science, Henan Agricultural University, Zhengzhou 450046, ChinaCollege of Information and Management Science, Henan Agricultural University, Zhengzhou 450046, ChinaCollege of Information and Management Science, Henan Agricultural University, Zhengzhou 450046, ChinaCollege of Information and Management Science, Henan Agricultural University, Zhengzhou 450046, ChinaBP neural network (BPNN) is widely used due to its good generalization and robustness, but the model has the defect that it cannot automatically optimize the input variables. In response to this problem, this study uses the grey relational analysis method to rank the importance of input variables, obtains the key variables and the best BPNN model structure through multiple training and learning for the BPNN models, and proposes a variable optimization selection algorithm combining grey relational analysis and BP neural network. The predicted values from the metabolic GM (1, 1) model for key variables was used as input to the best BPNN model for prediction modeling, and a grey BP neural network model prediction model (GR-BPNN) was proposed. The long short-term memory neural network (LSTM), convolutional neural network (CNN), traditional BP neural network (BP), GM (1, N) model, and stepwise regression (SR) are also implemented as benchmark models to prove the superiority and applicability of the new model. Finally, the GR-BPNN forecasting model was applied to the grain yield forecast of the whole province and subregions for Henan Province. The forecasting results found that the growth rate of grain production in Henan Province slowed down and the center of gravity for grain production shifted northwards.http://dx.doi.org/10.1155/2021/9919332 |
| spellingShingle | Bingjun Li Yifan Zhang Shuhua Zhang Wenyan Li Prediction of Grain Yield in Henan Province Based on Grey BP Neural Network Model Discrete Dynamics in Nature and Society |
| title | Prediction of Grain Yield in Henan Province Based on Grey BP Neural Network Model |
| title_full | Prediction of Grain Yield in Henan Province Based on Grey BP Neural Network Model |
| title_fullStr | Prediction of Grain Yield in Henan Province Based on Grey BP Neural Network Model |
| title_full_unstemmed | Prediction of Grain Yield in Henan Province Based on Grey BP Neural Network Model |
| title_short | Prediction of Grain Yield in Henan Province Based on Grey BP Neural Network Model |
| title_sort | prediction of grain yield in henan province based on grey bp neural network model |
| url | http://dx.doi.org/10.1155/2021/9919332 |
| work_keys_str_mv | AT bingjunli predictionofgrainyieldinhenanprovincebasedongreybpneuralnetworkmodel AT yifanzhang predictionofgrainyieldinhenanprovincebasedongreybpneuralnetworkmodel AT shuhuazhang predictionofgrainyieldinhenanprovincebasedongreybpneuralnetworkmodel AT wenyanli predictionofgrainyieldinhenanprovincebasedongreybpneuralnetworkmodel |