The number of product trouble satisfies the properties like that. We improve traditional GM(1,1) model by supplying residual error and applying the improved model for forecasting of product trouble.
采用补充残差和加权平均的方法改进了传统的GM（1，1）模型，并将改进后的模型应用于产品故障数的预测。
An improved grey GM (1, 1) model using a technique of nonlinear regression is proposed.
提出了一种结合非线性回归技术的灰色GM(1,1)模型的改进模型。
We establish and accomplish the improved GM (1, 1) forecast model for the forward price in power market, which is based on the grey theory.
建立和实现了基于灰色理论的电力市场期货价格的改进GM(1,1)预测模型。
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