A Study on Multi-criteria Group Decision Support based on Modified ELECTRE III for DMs’ Risk Preferences

• Main Authors: Wen-Pu Wu, 吳汶璞
• Other Authors: Hsu-Shih Shih
• Format: Others
• Language: zh-TW
• Published: 2015
• Online Access: http://ndltd.ncl.edu.tw/handle/w23zz9

碩士 === 淡江大學 === 管理科學學系碩士班 === 103 === This study aims to formulate a decision maker’s (DM’s) risk preferences to modify ELECTRE (ELimination Et Choix Traduisant la REalité, or ELimination and Choice Expressing REality) III model, and integrate with group attitude for a multi-criteria group decision model to assist the decision support and make practical implication prominent. We employ concave and convex utility functions to modify the concordance and discordance indices in order to represent the DM’s risk preferences. Using group decision to comprehensive all DMs’ thresholds and weights then compared the difference between the original, modified and group decision models. We execute sensitivity analyses on different weights and thresholds as to demonstrate the stability of our proposed model. We also use ranking test and simulation to test the correlation between the traditional and modified models. After these testing, found the modified model fairly stable and can provide decision makers to make effective and reasonable decisions. The result shows the difference between traditional and modified models’ ranking, and we found that the original model’s rank is same as risk neutral. Group decision also can provide a different rank for DM, so we can verify that the modify model has stability, and DMs can have a decision model that fit the preferences by adjust the weight and thresholds. The result of rank and simulation also can help DMs sorting the alternatives, giving EPA the standard of subsidy and guidance.