Combination forecasting model on rough set.

On the basis of the current combination forecast methods, this paper proposed a new method of. combination forecast model on Rough Set. First, this method can get a regular table about forecast methods by use of attributes reduction algorithm in rough set theory. Then we choose the prediction methods from it and estimate the weights of varied methods approximately. At last, we construct a model and get the weight of each forecast method by use of PH algorithm of multiplier method in optimal method. Examples show that this model and its solution method is feasible, efficient. And it can be used to resolve the practical problem of economic decision.