This new conception is also suitable for other exponential smoothing models.

针对二次指数平滑模型的新构思对其它指数平滑模型同样适用。

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Firstly, the definition of exponential smoothing is presented. Then three models' characteristics are analyzed. How we choose these three models is based on these differences mainly.

首先，本文给出了三种指数平滑方法的定义，并分析了每种方法的特点，预测方法的选取主要取决于三种方法的差异性。

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