Open Access
ARTICLE
Grain Yield Predict Based on GRA-AdaBoost-SVR Model
Diantao Hu, Cong Zhang*, Wenqi Cao, Xintao Lv, Songwu Xie
Wuhan Polytechnic University, Wuhan, 430023, China
* Corresponding Author: Cong Zhang. Email:
Journal on Big Data 2021, 3(2), 65-76. https://doi.org/10.32604/jbd.2021.016317
Received 30 December 2020; Accepted 07 April 2021; Issue published 13 April 2021
Abstract
Grain yield security is a basic national policy of China, and changes in
grain yield are influenced by a variety of factors, which often have a complex,
non-linear relationship with each other. Therefore, this paper proposes a Grey
Relational Analysis–Adaptive Boosting–Support Vector Regression (GRAAdaBoost-SVR) model, which can ensure the prediction accuracy of the model
under small sample, improve the generalization ability, and enhance the prediction
accuracy. SVR allows mapping to high-dimensional spaces using kernel functions,
good for solving nonlinear problems. Grain yield datasets generally have small
sample sizes and many features, making SVR a promising application for grain
yield datasets. However, the SVR algorithm’s own problems with the selection of
parameters and kernel functions make the model less generalizable. Therefore, the
Adaptive Boosting (AdaBoost) algorithm can be used. Using the SVR algorithm
as a training method for base learners in the AdaBoost algorithm. Effectively
address the generalization capability problem in SVR algorithms. In addition, to
address the problem of sensitivity to anomalous samples in the AdaBoost
algorithm, the GRA method is used to extract influence factors with higher
correlation and reduce the number of anomalous samples. Finally, applying the
GRA-AdaBoost-SVR model to grain yield forecasting in China. Experiments were
conducted to verify the correctness of the model and to compare the effectiveness
of several traditional models applied to the grain yield data. The results show that
the GRA-AdaBoost-SVR algorithm improves the prediction accuracy, the model
is smoother, and confirms that the model possesses better prediction performance
and better generalization ability.
Keywords
Cite This Article
D. Hu, C. Zhang, W. Cao, X. Lv and S. Xie, "Grain yield predict based on gra-adaboost-svr model,"
Journal on Big Data, vol. 3, no.2, pp. 65–76, 2021. https://doi.org/10.32604/jbd.2021.016317
Citations