组合预测方法及其在粮食产量预测中的应用

Combined Forecasting Model and its Application in Grain Yield Forecasting

提出了一种组合预测方法,以“预测偏差绝对值的和最小”为标准,用线性规划确定组合权系数的最优加权算法,对青海省的粮食总产量进行了预测分析。结果表明,此模型具有较高的精度。

A combined forecasting model was set up according to the least sum of the absolute value of forecasting deflection ,and grain yield of Qinghai province is forecasted and analyzed in this paper based on combined forecasting model whose weight is determined by linear programming. the result shows that the combined forecasting model has higher forecasting precision. [