On the Feasibility of Dematel and Its Revision

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基本資料

Project title

Code/計畫編號

NSC100-2410-H019-006-MY2

Translated Name/計畫中文名

DEMATEL可行性之探討與其修正

Project Coordinator/計畫主持人

Hsuan-Shih Lee

Funding Organization/主管機關

National Science and Technology Council

Department/Unit

Department of Shipping and Transportation Management

Website

https://www.grb.gov.tw/search/planDetail?id=2382631

Year

2012

Start date/計畫起

01-08-2012

Expected Completion/計畫迄

31-07-2013

Bugetid/研究經費

476千元

ResearchField/研究領域

工業工程
管理科學

"DEMATEL 研究方法近年來已經被廣泛運用在不同領域，例如行銷，控制系統，安全問題，多準則決策等決策問題上。許多學者也將DEMATEL 跟很多研究方法結合，例如ANP，MCDM，模糊理論等，發展出混合型的研究方法，並將其應用在許多領域上。DEMATEL 係利用一個直接影響矩陣紀錄系統元件間的影響因子。直接影響矩陣自乘一次，也就是直接影響矩陣的二次方，代表系統元件間透過一個元件之間接影響程度。因此將直接影響矩陣的一次方，直接影響矩陣的二次方，到直接影響矩陣的無窮次方加總起來，所得到的總影響矩陣，代表系統元件間所有可能的影響。DEMATEL 的基本假設是直接影響矩陣的無窮次方會趨近於零，因此總影響矩陣才會收斂存在。本研究就是要指出直接影響矩陣的無窮次方未必會趨近於零，因此總影響矩陣可能不存在。研究計畫預計探討直接影響矩陣的無窮次方不會趨近於零的情況，並且嘗試修正DEMATEL，以使修正後之 DEMATEL 可保證直接影響矩陣的無窮次方會趨近於零，因此總影響矩陣才會收斂存在。本研究計畫預計完成下列成果：(1)證明原來的DEMATEL 在某些情況下，會無法運作(2)嘗試找出無法讓DEMATEL 運作的情形 (3)找出直接影響矩陣的無窮次方會趨近於零的必要條件 (4)依據找出之必要條件修改DEMATEL (5)驗證修改後之DEMATEL 是健全的 (6) 將修改後之DEMATEL 運用在各總應用上，例如應用到台灣航商權宜船(FOC)之註冊國籍選擇評估上。""DEMATEL (Decision Making Trial and Evaluation Laboratory) has been applied in many situations, such as marketing strategies, control systems, safety problems, developing the competencies of global managers and group decision making. It has been incorporated into other methods such as ANP (Analytical Network Process), MCDM (Multiple Criteria Decision Making), fuzzy set theory, etc., to vitalize these traditional methods and explore new applications for the hybrid methods. DEMATEL models the influences of components of a system with an initial direct relation matrix. Influences of components can ripple transitively to other components, which is modeled by raising the initial direct relation matrix to powers. The total influence is computed by summing up matrices of all powers based on the assumption that the matrix raising to the power of infinity would converge to zero. The current project is trying to show that raising the initial relation matrix to the power of infinity may not converge to zero and hence total influence may not converge. The current project also tries to show that our revised DEMATEL method guarantees that the initial direct-relation matrix of infinite power will converge to zero and the total influence can be obtained accordingly."

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On the Feasibility of Dematel and Its Revision

基本資料

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