頁籤選單縮合
題 名 | A Research on Grey Model by Grey Interval Analysis |
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作 者 | Li, Guo-dong; Yamaguchi, Daisuke; Nagai, Masatake; Kitaoka, Masatoshi; | 書刊名 | Journal of Grey System |
卷 期 | 9:2 民95.12 |
頁 次 | 頁103-113 |
分類號 | 314 |
關鍵詞 | GM; Cubic spline function; Taylor approximation method; Grey interval analysis; |
語 文 | 英文(English) |
英文摘要 | Grey Model (GM) based on grey system theory has already been established as a prediction model in 1982. At present, it has been applied to many fields. However, in the traditional GM, the calculation methods of derivative value d(superscript n) x/dt(superscript n) and background value z are obtained by the analysis of observed white value. Therefore, it influenced the calculation of coefficient � and the prediction accuracy of the traditional GM is unsatisfied. Especially, the prediction accuracy falls in case of the multi-variable or multi-dimensional greatly. In this paper, a new calculation method of derivative value d(superscript n) x/dt(superscript n) and background value z is proposed according to cubic spline function and Taylor approximation method and it is analyzed by grey interval analysis. We obtain the new calculation method of coefficient � by the proposal GM, and this new model is defined as T-3spGM. We present two specific examples; the prediction accuracy of proposal model is verified. As the results, we report that the prediction accuracy of the proposal new model was raised greatly. |
本系統中英文摘要資訊取自各篇刊載內容。