应用矩阵理论，对组合预测误差平方和的取值范围进行了研究。

This paper aims at discussing the value range of combination forecasting error square sum with matrix theory.

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又以预测误差平方和SSE最小为目标，构造了优选并自动生成最佳平滑参数使平滑模型得以优化的最速下降算法，增强了指数平滑模型对时间序列的适应能力。

Aiming the square sum of error (SSE), we construct the algorithm to iterate and select an optimal parameter for optimizing the new models, which ADAPTS the model to time series more.

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