基于倒数灰色关联度的加权调和平均组合预测模型是一种新的非线性组合预测模型。针对该模型提出新的优性组合预测、预测方法优超、冗余度等概念,给出优性组合预测存在的充分条件,最后证明冗余预测方法的一个判定定理。
Weighted harmonic means combination forecasting based on degree of reciprocal grey incidence is a new kind of nonlinear combination forecasting method. Some new concepts are put forward, such as superior combination forecasting, dominant forecas-ting method, redundant degree etc. The sufficient conditions of existence of superior combination forecasting are given. Finally the determining theorem of redundant forecasting method is also proved.