基于属性权重的时序模糊软集的群决策方法研究-计算机科学.pdfVIP

Vo 1. 43 No. 12 第 43 卷第12 期 计算机科学 2016 年 12 月 Computer Science Dec 2016 基于属性权重的时序模糊软集的群决策方法研究 张其文谢艳钊 (兰州理工大学计算机与通信学院 兰州 730050) 摘 要 针对模糊软集在群决策过程中其属性权重往往被忽略或依靠主观经验来确定的问题，提出了一种基于属性 优势度的属性权重确定方法，并讨论了其相关性质及运算。在群决策过程中，针对决策信息是随时间变化而变化的这 一特点，定义了时序模糊软集等概念，并建立了基于决策时间差的对数增长型时间权重确定公式。最后通过与其他决 策方法进行对比分析验证了该方法的可行性和合理性。 关键词 模糊软集，属性权重，时序模糊软集，优势度，时间权重 中固法分类号 TP181 文献标识码 A DOI 10. 11896/j. issn. 1002-137)♀ 2016.12.015 Group Decision-making Method Research ßased on Time-seri四 Fuzzy Soft Sets of Attribute Weights ZHANG Qi-wen XIE Yan-zhao (School of Computer and Communication.Lanzhou University of Technology.Lanzhou 730050.China) Abstract Aiming at the problems that fuzzy soft sets attribute weights are often ignored or subjective experience is relied on to determine in the process of group decision-maki晤.we proposed a method for determining attribute weights based on the attribute dominance degree and discussed its related properties and operations. In group decision-making process ,according to this characteristic of the decision-making information varying with time ,the concept of time-series fuzzy soft sets was defined and the logarithmic growth model time weights formula based on the decision-making time difference was established. Finally ,we used comparative analysis with other decision-making methods to verify the feasi bility and rationality of the approach. Keywords Fuzzy soft sets ,Attribute weights ,Time-series fuzzy soft sets ,Dominance degree ,Time weights 离最终决策的时刻，决策者所掌握的决策信息就相对较少，决 在现实生活中，很多问题都含