【Key words】 categorical variable; grey predicting model; residual modification; single-index moving method; backward error-detection;
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multiple grey predicting model 多变量灰色预测模型
grey predicting model of gm 灰色预测模型gm
grey markov chain predicting model 灰色马尔柯夫预测模型
Grey-Markov Predicting Model 灰色系统
grey predicting and correcting model 灰色预测修正模型
A grey predicting model of GM (1, 1) can be established with the accumulated sequence generated by the oil well decline rate before refracturing according to the theory of grey system.
应用灰色系统理论,由油井重复压裂前的递减产量,生成相应的一阶累加序列,由累加序列建立了灰色预测模型GM (1,1)。
The grey system GM (1, 1) model for predicting gas content in coal seam is established by applying the grey system theory and the prediction model is modified with the residual model.
应用灰色系统理论,建立了预测煤层瓦斯含量的灰色系统GM(1,1)模型,并用残差模型对预测模型进行了修正。
Therefore, the application of grey system gm model to predicting strong earthquake sequences in the region of middle and southern segments of south-north seismic belt is feasible.
因此灰色系统GM模型在南北地震带中南段地区强地震序列预测中的应用是可行的。
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