期刊刊名：管理科學與統計決策 　 卷期：7卷3期

篇名出版日期：2010年9月1日

作者：Peng-Yu Chen

語言：English

關鍵字：DGM(1,1), D₁GM(1,1), DPGM(1,1), Pattern Search

被點閱次數：0次

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摘要：
Based on the analysis of the relationship between GM(1,1) and DGM(1,1), this paper proposes a new discrete grey model D1GM(1,1). The relationship between parameters of the two models and their forecasting precision are discussed. And further this paper proposes another new discrete grey model DPGM(1,1). The relationship between DPGM(1,1) and DGM(1,1) and the relationship between DPGM(1,1) and D1GM(1,1) are researched. The results show that we can equal DPGM(1,1) with DGM(1,1) while weight p in DPGM(1,1) values 1, and we can equal DPGM(1,1) with D1GM(1,1) while weight p in DPGM(1,1) values 0.5. Researches in this paper show that the prediction accuracy of DPGM(1,1) change with weight value. So pattern search algorithms are proposed to work out the best value of weight p in this paper.

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