The Combined Forecasting Model of Gray Model Based on Linear Time-variant and Arima Model
نویسندگان
چکیده
As to the established gray model based on the linear time-variant and individual prediction model of ARIMA, this article constructs the combined forecasting model based on the gray model and the time series model by means of relative error weighing. This prediction indicates that both the gray model and ARIMA model exert efficient function on the Torpedo development cost prediction, and the combination forecast model improve the precision of prediction.
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