题名 |
灰色預測與計量經濟模式預測比較研究 |
并列篇名 |
Comparison Research between Grey Forecast and Econometric Model Forecast on Examining Accuracy |
DOI |
10.6704/JMSSD.2006.3.4.66 |
作者 |
洪麗珠(Li-Zhu Hong) |
关键词 |
計量經濟模式 ; 觀光旅遊人數 ; 預測 ; 灰色預測 ; Forecasting ; econometric model ; grey forecast |
期刊名称 |
管理科學與統計決策 |
卷期/出版年月 |
3卷4期(2006 / 12 / 01) |
页次 |
66 - 79 |
内容语文 |
繁體中文 |
中文摘要 |
本文以實證研究來比較預測模式之準確度;先以計量經濟模式中迴歸方法為主,經過模式建立後所得到結果再與灰色預測中GM(1,1)四個影子模式的預測結果相互比較。為了評估預測模式能力,本研究採用MAPE(Mean Absolute Percentage Error)來檢測模式之準確度。發現本研究所得預測模式MAPE值介於10~20之間得優良預測能力,但GM(1,1)四個影子模式所預測出的雖然大於本研究所建立預測模式,但也是在優良預測能力的範圍內,足以證明灰色預測部分可以條件替代計量經濟模式。 |
英文摘要 |
This investigation studies the accuracy of the model with empirical study emphasizing regression analysis in the econometric model, and compares the results from the model with those from the four GM(1,1) shadow models in Grey forecast. MAPE(Mean Absolute Percentage Error) was used to study the accuracy of the model. All the MAPE values were found to be between 10 and 20 producing an excellent forecasting ability. Although the values forecast by 4 GM(1,1) shadow models are larger than those from the forecasting model built in this investigation, they are still good enough to allow the econometric regression forecasting model to be replaced in some situations by grey forecast. |
主题分类 |
基礎與應用科學 >
統計 社會科學 > 管理學 |
参考文献 |
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