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基于熵的模糊群體評(píng)價(jià)合成方法
摘要:研究了模糊決策環(huán)境下群體評(píng)價(jià)意見的合成問題.應(yīng)用距離函數(shù)來計(jì)算兩個(gè)梯形模糊數(shù)之間的相似性函數(shù),使得相似性函數(shù)的應(yīng)用范圍得到拓展.基于熵來度量個(gè)體與群體的一致性,建立了群體決策的熵模型,減少了群體的不確定性.利用此模型對(duì)專家的初始主觀權(quán)重進(jìn)行迭代運(yùn)算得到修正權(quán)重,再把初始主觀權(quán)重和修正權(quán)重線性合成作為專家的綜合權(quán)重.最后,通過算例說明了該方法的可行性和有效性.Abstract:The aim of this paper is to deal with the aggregating problem of group evaluation under fuzzy preference. A new similarity measuring function that is situated between two trapezoidal fuzzy numbers is computed by using distance functions, which makes its applied scope expand. The unanimity between individual and group is measured by utilizing entropy, a group entropy model is established and the uncertainty of the group is reduced. With the aid of the model, the experts original weight is modified to a revised weight by an iterative procedure, and then the experts integrative weight is linear synthesized by original weight and revised weight. Finally, an example is applied to demonstrate the practicability and validity of this approach. 作者: 吳堅(jiān)曹清瑋 Author: WU Jian CAO Qing-wei 作者單位: 浙江師范大學(xué)工商管理學(xué)院,浙江,金華,321004 期 刊: 系統(tǒng)工程與電子技術(shù) ISTICEIPKU Journal: SYSTEMS ENGINEERING AND ELECTRONICS 年,卷(期): 2010, 32(3) 分類號(hào): C934 關(guān)鍵詞: 群決策 一致性 梯形模糊數(shù) 熵 Keywords: group decision making unanimity trapezoidal fuzzy number entropy 機(jī)標(biāo)分類號(hào): O1 N94 機(jī)標(biāo)關(guān)鍵詞: 梯形模糊數(shù) 群體評(píng)價(jià) 合成方法 based group decision making trapezoidal fuzzy numbers 相似性函數(shù) 主觀權(quán)重 正權(quán)重 個(gè)體與群體 model individual evaluation deal with 綜合權(quán)重 專家 應(yīng)用范圍 群體決策 評(píng)價(jià)意見 模型 基金項(xiàng)目: 國家自然科學(xué)基金【基于熵的模糊群體評(píng)價(jià)合成方法】相關(guān)文章:
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