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《Mathematics in Practice and Theory》 2011-02
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The Study of REM-GM(1,1) Model on Sales Forecast and Cluster Predication Method

SUN Qing-wen,ZHU Xian-ying (School of Business Administration,Hebei university of economics & business number47,xuefu road,shijiazhuang city,Hebei 050061,China)  
Inventory management is an important part of the operation management of commerce and enterprises,which is based on the amount of sales un-house,but the uncertainty of customer demands is the foremost problem perplexing managers.Based on GM(1,1) model and combining calamity grey prediction at residual hour,this paper establishes a REM-GM(1,1) model and with the aid of cluster predication method successfully forecasts the amount of sales un-house of commerce and enterprises.The empirical studies observe that the model of un-house forecasting,no matter whether one step forecast or multi-step long-time forecast, has a more remarkable prediction precision compared with traditional GM(1,1) model and furthermore,the fluctuation of error is relatively stable and the prediction is satisfying.
【Fund】: 河北省教育厅社科研究2010年度基金(SD2010005)
【CateGory Index】: F274;N941.5
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