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本文引入了非负权重组合预测冗余方法的概念，提出了几个删除冗余方法的定理．这几个冗余定理能简化非负权重最优组合预测问题，并用几个实例表明了这些冗余定理的有效性．
In this paper, we introduce the concept of nonnegative weight combination forecasting redundancy method and put forward several theorems of removing redundancy method. These redundancy theorems can simplify the non-negative weight optimal combination forecasting problem, and use several examples to show the validity of these redundant theorems.