通过引入可信赖域，改进预测精度矩阵，来推导单个预测和组合预测的阶预测有效度。
The method deduces the forecast effectiveness of single and combined forecast by introducing confidence field and improving forecast precision matrix.
通过引入可信赖域，改进预测精度矩阵，来推导单个预测和组合预测的阶预测有效度。
The method deduces the forecast effectiveness of single and combined forecast by introducing confidence field and improving forecast precision matrix.
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