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A vague-set-based fuzzy multi-objective decision making model for bidding purchase

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A vague-set-based fuzzy multi-objective decision making model for bidding purchase

A vague-set-based fuzzy multi-objective decision making model for bidding purchase

作者/编辑:Author:… http://www.unjs.com 自然科学论文
  [A vague-set-based fuzzy multi-objective decision making model for bidding purchase]Abstract:A vague-set-based fuzzy multi-objective decision making model is developed for evaluating bidding plans in a bidding purchase process. A group of decision-makers (DMs) first independently assess bidding plans according to their experience and preferences, and these assessments may be expressed as linguistic terms, which are then converted to fuzzy numbers. The resulting decision matrices are then transformed to objective membership grade matrices. The lower bound of satisfaction and upper bound of dissatisfaction are used to determine each bidding plans supporting, opposing, and neutral objective sets, which together determine the vague value of a bidding plan. Finally, a score function is employed to rank all bidding plans. A new score function based on vague sets is introduced in the model and a novel method is presented for calculating the lower bound of satisfaction and upper bound of dissatisfaction. In a vague-set-based fuzzy multi-objective decision making model, different valuations for upper and lower bounds of satisfaction usually lead to distinct ranking results. Therefore, it is crucial to effectively contain DMs arbitrariness and subjectivity when these values are determined. 作者: Author: WANG Zhou-jing[1]  QIAN Edward Y.[2] 作者单位: Department of Automation, Xiamen University, Xiamen 361005, ChinaCenter for Research of Private Economy, Zhejiang University, Hangzhou 310027, China 期 刊: 浙江大学学报A(英文版)   ISTICEISCI Journal: JOURNAL OF ZHEJIANG UNIVERSITY SCIENCE A 年,卷(期): 2007, 8(4) 分类号: N949 Keywords: Fuzzy multi-objective decision making model    Vague set    Score function    Lower bound of satisfaction    Upper bound of dissatisfaction    机标分类号: O1 TP3 机标关键词: decision making    score function    upper bound    upper and lower bounds    membership grade    linguistic terms    fuzzy numbers    vague sets 基金项目: Department of Automation,Xiamen University, China A vague-set-based fuzzy multi-objective decision making model for bidding purchase[期刊论文]  浙江大学学报A(英文版) --2007, 8(4)A vague-set-based fuzzy multi-objective decision making model is developed for evaluating bidding plans in a bidding purchase process. A group of decision-makers (DMs) first independently assess biddin...
A vague-set-based fuzzy multi-objective decision making model for bidding purchase2
  第2篇 关于环境保护的论文:Effect of refining slag containing Ce2O3 on stee
  〖预览〗Abstract:The effect of pre-melting refining slag containing different contents of Ce2O3 on the absorption and modification of Al2O3 inclusion in an Al-killed steel was investigated through the slag/steel reaction experiment at 1600 ℃.It was found that the replacement of 10 wt.%Al2O3 with Ce2O3 for 50 wt.%CaO-33 wt.%Al2O3-7 wt.%MgO-10 wt.%SiO2 refining slag promoted the slag absorption ability of alumina inclusion,which made the total oxygen content determined by infrared absorption method decrease from 100 to 25 ppm in 15 min.The Mg-Al-Ce-O type inclusion was al……【全文阅读:关于环境保护的论文:Effect of refining slag containing Ce2O3 on stee
A vague-set-based fuzzy multi-objective decision making model for bidding purchase3
  第3篇 Toxicological effects and risk assessment of lanthanum ions on leave
  〖预览〗Abstract:Viciafaba L.seedlings were hydroponically cultivated in 0-12 mg/L of extraneous lanthanum (La) for 15 d to investigate ecotoxicological effects and risk assessment of rare earth elements (REEs).The results showed that reactive oxygen species (ROS) production such as superoxide radical (O2-) and hydrogen peroxide (H2O2) were overproduced at higher concentrations of La,resulting in oxidatively modified proteins and shoot growth retardation.While,superoxide dismutase (SOD),catalase (CAT),ascorbate peroxidase (APX) and guaiacol peroxidase (GPX) isoenzymes w……【全文阅读:Toxicological effects and risk assessment of lanthanum ions on leave】   〔A vague-set-based fuzzy multi-objective decision making model for bidding purchase
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