共查询到20条相似文献,搜索用时 93 毫秒
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针对偏好具有冲突性且权重信息完全未知的直觉模糊多属性群体决策问题, 提出一种基于多目标决策的求解方法. 首先, 建立以决策方案差异程度和决策成员偏好冲突程度为目标函数的多目标决策模型; 然后, 利用极小极大方法求解该模型, 得到各方案的属性权重和决策成员权重, 据此确立最优方案; 最后, 通过数值算例表明了该方法的有效性.
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针对准则权重不完全确定且准则值为区间数的多准则群决策问题,提出一种基于前景理论的多准则决策方法。基于统计推断原理,以各准则下的方案值为样本推断其发生的概率,进而确定期望值参考点。基于区间数可能度确定价值函数,以方案区分度最大为目标构建非线性优化模型并确定方案排序。最后,通过实例分析表明了所提出方法的有效性和可行性。 相似文献
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针对权系数信息和方案的准则值为确定语言等级,或位于两个语言等级之间,甚至缺失的群决策问题,提出一种新的决策方法.该方法利用证据推理算法对准则权系数和方案值在准则下进行群体集成,采用二元语义对方案进行语言集结,并用方案与理想方案的二元语义间距离和群体集成信息等构建非线性规划模型,使用遗传算法求解优化模型,进而得到方案的排序.最后通过实例说明该方法的可行性和有效性. 相似文献
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基于前景理论的多目标灰靶决策方法 总被引:1,自引:1,他引:0
针对权重信息部分已知且属性值为区间数的多目标决策问题,考虑决策者风险态度对多目标决策的影响,提出一种基于前景理论的区间数多目标灰靶决策方法.该方法利用奖优罚劣的区间数线性变换算子对原始决策信息进行规范化处理,设计正负理想靶心,并定义前景价值函数.利用该构建方案建立优化模型以得出最优权向量,并最终确定出方案的排序.最后,通过一个实例验证了该模型适用于具有风险态度特性的区间数多指标决策,并且表明了该模型的有效性和可行性. 相似文献
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针对属性值为区间直觉模糊数的多属性群决策问题,考虑到模糊性和随机性对群决策过程及结果的影响,本研究将利用云模型理论结合区间直觉模糊数的特征,运用灰色关联系数法和信息熵理论确定专家和属性权重,通过信息集结构建综合评价云模型.不同于传统的区间直觉模糊数的排序方法,本研究利用云模型的3En规则将区间直觉模糊数进行云转换并通过云相似度确定方案的综合评价值和犹豫度,然后对决策方案进行比较分析.研究结果表明:该方法能够科学有效地进行决策,进而为决策方提供科学依据. 相似文献
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研究基于冲突利益主体不完全确定权重信息情景下的群决策方法.把不完全确定的权重信息作为证据,建立了所有证据之间的距离最小测算模型,提出了不完全确定权重数值上、下限范围估计模型;为解决冲突证据的融合问题,提出了基于证据相似性的证据协调加权因子;建立了基于灰靶决策的靶心距分布范围确定模型,以排定方案优劣顺序.最后基于该方法探讨了某棕地开发方案的评价应用. 相似文献
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A framework for dynamic multiple-criteria decision making 总被引:1,自引:0,他引:1
Gianluca CampanellaAuthor Vitae Rita A. RibeiroAuthor Vitae 《Decision Support Systems》2011,52(1):52-60
The classic multiple-criteria decision making (MCDM) model assumes that, when taking a decision, the decision maker has defined a fixed set of criteria and is presented with a clear picture of all available alternatives. The task then reduces to computing the score of each alternative, thus producing a ranking, and choosing the one that maximizes this value.However, most real-world decisions take place in a dynamic environment, where the final decision is only taken at the end of some exploratory process. Exploration of the problem is often beneficial, in that it may unveil previously unconsidered alternatives or criteria, as well as render some of them unnecessary.In this paper we introduce a flexible framework for dynamic MCDM, based on the classic model, that can be applied to any dynamic decision process and which is illustrated by means of a small helicopter landing example. In addition, we outline a number of possible applications in very diverse fields, to highlight its versatility. 相似文献
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针对属性取值以直觉模糊数形式给出的多属性决策问题,提出了基于直觉模糊推理的多属性群决策方法。首先针对专家的评价信息构建直觉决策推理规则,然后根据规则之间的关系给出了决策推理模型,进而给出了基于直觉模糊推理的决策方法;最后通过购房实例验证了该方法的正确性和有效性。 相似文献
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Frada Burstein Julie Cowie Arkady Zaslavsky Jocelyn San Pedro 《Information Systems and E-Business Management》2008,6(3):257-278
Mobile users making real-time decisions based on current information need confidence that their context has been taken into
consideration in producing the system’s recommendations. This chapter reviews current use of mobile technologies for context-aware
real-time decision support. Specifically, it describes a framework for assessing the impact of mobility in decision making.
The framework uses dynamic context model of data quality to represent uncertainties in the mobile decision-making environment.
This framework can be used for developing visual interactive displays for communicating to the user relevant changes in data
quality when working in mobile environments. As an illustration, this chapter proposes a real-time decision support procedure
for on-the-spot assistance to the mobile consumer when choosing the best payment option to efficiently manage their budget.
The proposed procedure is based on multi-attribute decision analysis, scenario reasoning, and a quality of data framework.
The feasibility of the approach is demonstrated with a mobile decision-support system prototype implementation.
This article is part of the “Handbook on Decision Support Systems” edited by Frada Burstein and Clyde W. Holsapple (2008)
Springer. 相似文献
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Multi-step ranking of alternatives in a multi-criteria and multi-expert decision making environment 总被引:1,自引:0,他引:1
Elena Tsiporkova 《Information Sciences》2006,176(18):2673-2697
In this work we introduce a decision model, in the form of a recursive aggregation algorithm, that attempts to mimic a multi-step ranking process of a set of alternatives in a multi-criteria and multi-expert decision making environment. The main idea is rather intuitive. Each alternative is initially assigned a list of values, representing the group experts’ opinion about the extent to which the alternative satisfies a set of given criteria. Then the values for each alternative are combined with the weighted mean operator according to vectors of weights, one for each decision maker in the group. These weights express the personal judgement of the decision makers about the relative importance of the individual criteria. Consequently, a new vector of values is obtained for each alternative. These new values are combined again with the weighted mean operator taking into account the different degrees of influence each decision maker accepts from the rest of the group. The latter aggregation step is repeated again and again for each alternative until a consensus is attained. 相似文献
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一种基于vague集的模糊多目标决策新方法 总被引:1,自引:0,他引:1
提出一种新的基于vague集的模糊多目标决策方法。解决在无权重的情况下模糊多目标决策,所得的方法能更好的应用于模糊多目标决策,并通过例子阐明本文方法的有效性和优越性。 相似文献
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为有效应对现有群决策一致性检验方法的系列弊端,针对群决策的决策导向多元、决策方案众多、决策属性异构、决策信息多样等特征,在引入票权概念解析群决策一致性判定复杂性、刻画非结构多属性群决策合意信息表征假设情景的基础上,通过对常规混合非结构多属性群决策(MAGDM)问题进行公理化描述,并依据从方案层面到属性层面的整体决策信息判定策略,给出决策导向层面的整体判断信息一致性检验方法、多轮次非一致性决策信息调整策略及信息集结方法。案例应用结果表明提出的方法有效、可行。 相似文献
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Considered in this paper is the group decision making problem with inter-dependent or interactive attributes, where evaluation values of decision makers are in linguistic arguments. By using the Choquet integral, some new aggregation operators are introduced, including the 2-tuple correlated averaging operator, the 2-tuple correlated geometric operator and the generalized 2-tuple correlated averaging operator. The proposed operators can better reflect the correlations among the elements. After investigating properties of these operators, a new multiple attribute decision making method based on the new operators is proposed. Finally, a numerical example is provided to illustrate the feasibility and efficiency of the proposed method. 相似文献