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New multiattribute decisionmaking method of designing
scheme based on evidential reasoning |
School of Mechanical Engineering, Jiangsu University, Zhenjiang, Jiangsu 212013, China |
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Abstract To overcome the difficulty of obtaining the complete and determined weight value at the conceptual design stage in traditional evidential reasoning approach, a new designing scheme was proposed. Based on the inspiration from preference function in physical programming evaluation method, the triangular fuzzy number was used to determine the fuzzy scale of target property, and an antipreference function was innovatively proposed to determine the weight value. The evaluation grade range was determined based on the divided preferences interval. The knowledges of evidential reasoning evaluation grade, probability distribution function and utility value were adopted to realize the multiattribute decisionmaking(MADM). The example was given to verify the feasibility and the superiority on quantitative description of the uncertain and incomplete subjective evaluation of the new method. The results show that the fuzzy language value can be transformed into confirmed one by the proposed method at the conceptual design stage, and the effective evaluation is realized successfully.
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