A Collaborative Compound Neural Network Model for Soil Heavy Metal Content Prediction

被引:18
作者
Cao, Wenqi [1 ]
Zhang, Cong [1 ]
机构
[1] Wuhan Polytech Univ, Sch Math & Comp Sci, Wuhan 430023, Peoples R China
来源
IEEE ACCESS | 2020年 / 8卷
关键词
Soil; Metals; Neural networks; Birds; Prediction algorithms; Optimization; Predictive models; Soil heavy metal content prediction; collaborative compound neural network model; parallel bird swarm algorithm; wavelet neural network; OPTIMIZATION ALGORITHM; CHINA POLLUTION; INDUSTRIAL; STATE;
D O I
10.1109/ACCESS.2020.3009248
中图分类号
TP [自动化技术、计算机技术];
学科分类号
0812 ;
摘要
The prediction of soil heavy metal content is an important part of the management of soil heavy metal pollution, but it is often ignored. At present, there are few studies on the prediction of soil heavy metal content, and it is an urgent problem to choose an efficient method for soil heavy metal content prediction. In this paper, a collaborative compound neural network model (CCNN) was put forward to predict the soil heavy metal content, this model uses wavelet neural network (WNN) as the basic prediction model, and at the same time proposes a parallel bird swarm algorithm (PBSA) to solve the parameter optimization problem of WNN, based on the bird swarm algorithm (BSA), the PBSA not only increases the gathering behavior of individual, but also adopts sine transformation based on fitness difference ratio to carry out the following behavior of beggars to improve the global optimization ability, besides that, the acceptance criterion is used to compare the fitness of individuals after updating to avoid falling into a local optimum. Soil heavy metal content data from Yinchuan city of Ningxia and six new urban areas in Wuhan, China are used to make prediction experiments respectively, through compare with support vector machine (SVM), radial basis function neural network (RBFNN), WNN and bird swarm algorithm optimizes wavelet neural network (BSA-WNN), the experimental results demonstrate that the predicted value of the CCNN is closer to the actual value and has better prediction performance.
引用
收藏
页码:129497 / 129509
页数:13
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