forecasting longterm forecasting middleterm forecasting shortterm forecasting 2
















- Slides: 16


• 預測(forecasting) § 長期預測(long-term forecasting) § 中期預測( middle-term forecasting ) § 短期預測( short-term forecasting ) 2 Production and Operation Management: Building Product and Service Benchmark Production and Operation Management: t: : Building 1. 預測的意義


§ 優良預測的六項條件 v預測的時間性。 v預測的正確性。 v預測的可靠性。 v預測的書面化。 v預測的單位化。 v預測技術之簡單、易懂、容易使用。 4 Production and Operation Management: Building Product and Service Benchmark Production and Operation Management: t: : Building 3. 優良預測的條件



一、消費者調查 二、銷售人員的意見 三、主管的意見 四、外部銷售專家的意見 7 Production and Operation Management: Building Product and Service Benchmark Production and Operation Management: t: : Building 6. 判斷性預測法

• 時間數列的規則大致受到四種現象的影 響: § § 長期趨勢(secular trend) 循環變動(cyclical movement) 季節變動(seasonal variation) 偶然變動(irregular flunctuation) 8 Production and Operation Management: Building Product and Service Benchmark Production and Operation Management: t: : Building 7. 以時間數列資料為基礎的預測

9 Production and Operation Management: Building Product and Service Benchmark Production and Operation Management: t: : Building 7. 以時間數列資料為基礎的預測

一、平均法 二、天真預測法 三、移動平均法 § 移動平均預測法(moving average forecasts) 其中,i = 資料的期數(i=1, 2, 3, 4…); n = 移動平均之期數; Ai = 期數 i 之實際值; MAn = n 期之移動平均。 10 Production and Operation Management: Building Product and Service Benchmark Production and Operation Management: t: : Building 7. 以時間數列資料為基礎的預測

五、長期趨勢 分析 11 Production and Operation Management: Building Product and Service Benchmark Production and Operation Management: t: : Building 7. 以時間數列資料為基礎的預測

• 關聯性預測技巧 § 關聯性預測技巧發展方程式,以詮釋預測變 數,通常使用迴歸分析。 12 Production and Operation Management: Building Product and Service Benchmark Production and Operation Management: t: : Building 8. 關聯性預測技巧

一、簡單線性迴歸(1/2) 其中, yc = 被預測的相依變數; x = 預測的獨立變數; b = 直線的斜率; a = 當x = 0時之yc值(即y截距)。 13 Production and Operation Management: Building Product and Service Benchmark Production and Operation Management: t: : Building 8. 關聯性預測技巧



Memory devices meaning
Shortterm housing
Lts kernel
Years solitary confinement
Rumus
Hail forecasting
Chapter 15 financial forecasting for strategic growth
Promotional forecasting in the grocery retail business
Collaborative planning forecasting and replenishment ppt
Forecasting the supply of inside candidates
Benefits of reference class forecasting include
Forecasting
What is markov analysis
Tracking signal forecasting
Private equity cash flow forecasting
Zero base forecasting
Difference between prediction and forecasting