交談式模糊決策輔助系統－－以大眾運輸系統營運方式選擇為例

Interactive Fuzzy Decision Aided Systems- A Case on Public Transportation System Operations

本研究目的係針對目前模糊AHP法的缺失，以三角模糊數表示專家群體意見，並使用幾何平均數法發展一個完整的群體決策模糊AHP模式，其優點是計算過程簡單、易懂。本文亦使用Visual Basic將其發展成交談式決策輔助系統，以提高模式的使用性，縮短決策時間。經由實例運作結果顯示本系統具有很高的實用性。此外，決策輔助系統亦具有模擬分析的功能，可獲知在不同的α-cuts及λ值之下，方案順序的逆轉情形，可充分反映實際決策環境不斷變化的特性。

To improve the weakness of the traditional fuzzy AHP, we use thetriangle fuzzy number to denote the expert group's opinions. A group decisionfuzzy AHP model (FAHP) is developed with the geometric average approach. Thismodel makes the calculation process simple and understandable. A decision aidedsystem is then developed which enhances the effectiveness of FAHP and reducesthe time for making decisions.The operations integration of the MRT and bus systems in Kaohsiung is employedas the empirical study. The results show that this model is practicallyefficient. Besides, the decision aided system has the capability of simulationanalysis. It shows the ranking reverse of the alternatives under different α-cuts and λ -values. This system can reflect the decision-making environmentchanges of the real world.