摘要
将灰色模型和神经网络模型进行组合建立灰色神经网络模型,分别用灰色模型、神经网络模型和组合模型对永定河流域官厅水库断面的水质检测指标DO的浓度值进行模拟预测.结果表明,组合预测模型的模拟预测精度高于两种单一模型的预测精度.
Grey model and artificial neural neural networks model. Two single models, networks model were combined to construct grey grey model and artificial neural networks model, and grey neural network model were used to forecast the DO concentration in Guanting reservoir of Yongding River. The forecast accuracy of the three models was compared and the results show that combined forecast model outperforms the two single models,
出处
《数学的实践与认识》
北大核心
2015年第5期89-93,共5页
Mathematics in Practice and Theory
基金
国家自然科学基金(41071322)
关键词
灰色神经网络模型
预测精度
有效度
grey neural networks model
forecast accuracy
validity