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多属性信息决策的改进无监督学习算法建模与应用
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作者 王昱 朱家元 +1 位作者 冯惊雷 张恒喜 《计算机工程与应用》 CSCD 北大核心 2002年第21期12-13,253,共3页
针对SOM网络无监督学习算法的单样本序列学习方式内存占用多的特点,采用Voronoi矢量原理改进权矢量迭代方式,使改进算法具有所有样本同时学习的能力,同时给出了算法的矢量映射误差测度和拓扑误差测度。然后根据改进算法建立了多属性信... 针对SOM网络无监督学习算法的单样本序列学习方式内存占用多的特点,采用Voronoi矢量原理改进权矢量迭代方式,使改进算法具有所有样本同时学习的能力,同时给出了算法的矢量映射误差测度和拓扑误差测度。然后根据改进算法建立了多属性信息决策的可视二维拓扑映射图模型,并对R&D项目中止决策进行了研究。计算结果表明,改进的无监督学习算法收敛速度快,基于拓扑映射图模型的多属性决策有效。 展开更多
关键词 多属性信息决策 改进无监督学习算法 建模 人工神经网络 模式识别 拓扑映射图
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一种FOWG算子及其在模糊AHP中的应用 被引量:19
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作者 徐泽水 《系统工程与电子技术》 EI CSCD 北大核心 2002年第7期31-33,36,共4页
给出了三角模糊数两两比较的可能度公式 ,研究了它的一些优良性质。基于可能度公式 ,提出了一种模糊有序加权几何平均 (FOWG)算子。利用该算子对模糊AHP中以三角模糊数判断矩阵形式给出的判断信息进行了集结 ,而且 ,基于FOWG算子及互补... 给出了三角模糊数两两比较的可能度公式 ,研究了它的一些优良性质。基于可能度公式 ,提出了一种模糊有序加权几何平均 (FOWG)算子。利用该算子对模糊AHP中以三角模糊数判断矩阵形式给出的判断信息进行了集结 ,而且 ,基于FOWG算子及互补判断矩阵的排序公式 ,给出了一种对决策方案进行排序和择优的算法。最后通过算例说明了该方法的有效性和实用性。 展开更多
关键词 FOWG算子 模糊AHP 有序加权平均算子 判断矩阵 三角模糊数 多属性决策信息 集结方法 层次分析法
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INFORMATION AXIOM BASED EVALUATION APPROACH TO FACILITY LAYOUT PROBLEM
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作者 王晓勇 唐敦兵 楼佩煌 《Transactions of Nanjing University of Aeronautics and Astronautics》 EI 2009年第3期170-177,共8页
The facility layout problem belongs to typical multiple-attribute decision-making(MADM) problems. To make the information axiom fit to MADM problems, the original computation method for the information content is im... The facility layout problem belongs to typical multiple-attribute decision-making(MADM) problems. To make the information axiom fit to MADM problems, the original computation method for the information content is improved by increasing the satisfaction degree item. Attribute values are divided into precise type, uncertainty type and fuzzy type. For benefit, cost, fixation, and interval type attributes, the computation methods for the information content on the three types of attribute values are presented. The improved information content can reflect the system success probability and the decision-maker satisfaction degree simultaneously and evaluate the MADM problem including multiple type attribute values. Finally, as a case study, the facility layout alternatives of a welding assembly workshop are evaluated. The result verifies the validity and the feasibility of the improved information axiom on the MADM problems. 展开更多
关键词 plant layout decision making information axiom multiple-attribute decision-making(MADM)
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CP-nets及其表达能力研究 被引量:17
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作者 刘惊雷 《自动化学报》 EI CSCD 北大核心 2011年第3期290-302,共13页
偏好处理是人工智能中的一个重要研究内容,它的4个研究热点是偏好的表示、提取、聚合和推理.条件偏好网(Conditional preference networks,CP-nets)是一种简单直观的偏好表示的图形工具,但很少有工作研究CP-nets的表达能力.本文研究CP-n... 偏好处理是人工智能中的一个重要研究内容,它的4个研究热点是偏好的表示、提取、聚合和推理.条件偏好网(Conditional preference networks,CP-nets)是一种简单直观的偏好表示的图形工具,但很少有工作研究CP-nets的表达能力.本文研究CP-nets的表达能力,详细研究了CP-nets表达偏好的完备性,其上构造的运算复杂度以及适用的场合.首先给出了CP-nets模型上的几个运算,利用改进的Warshall算法求出了二值网的强占优测试在最坏情况下的复杂度为O(4n).其次通过构造CP-nets导出图及其性质的研究,得出CP-nets特别适合不完全信息下的多属性定性偏好决策.当需要处理更完全信息时,可借助于与Agent的交互来完成.虽然我们给出了CP-nets的强占优测试的理论解,但其理论上可解,实际上不可解.为了解决强占优测试的指数级复杂度问题,本文最后给出了一种带有软约束的满足问题(Soft constraint satisfactionproblem,SCSP)的求解方法.它把CP-nets中的定性运算转为约束半环中的定量运算,从而将指数级的复杂度转化为多项式的复杂度,间接提高了部分CP-nets的表达能力.本文所做的工作是对Boutilier和Bistarelli工作的改进和提高. 展开更多
关键词 条件偏好网 表达能力 强占优测试 偏好的完备性 改进的Warshall算法 不完全信息下的多属性定性偏好决策 带有软约束的满足问题
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基于中心性指数的物流中心地等级体系构建 被引量:4
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作者 曹炳汝 何根华 曹惠惠 《统计与决策》 CSSCI 北大核心 2018年第13期52-55,共4页
为规范物流秩序、提高物流运行效率,文章运用中心地中心性理论、信息熵多属性决策、空间相互作用关系等方法,以安徽省为例,构建的物流中心地等级体系,并进行实证研究。研究表明:安徽省物流中心地是等级分层的,其中包括1个一级、4个二级... 为规范物流秩序、提高物流运行效率,文章运用中心地中心性理论、信息熵多属性决策、空间相互作用关系等方法,以安徽省为例,构建的物流中心地等级体系,并进行实证研究。研究表明:安徽省物流中心地是等级分层的,其中包括1个一级、4个二级和9个三级物流中心地;各等级中心地形成了层层嵌套分布的物流服务范围;安徽省物流等级体系也凸显了物流业发展中出现的一些问题,物流中心地等级体系也有利于解决物流发展过程中出现的问题。 展开更多
关键词 物流中心地 中心性指数 信息多属性决策 等级体系 安徽省
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A Decision Model Based on Grey Rough Sets Integration with Incomplete Information 被引量:5
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作者 HOU Ya-lin LUO Dang 《Chinese Quarterly Journal of Mathematics》 CSCD 2009年第1期151-158,共8页
In this paper, for multiple attribute decision-making problem in which attribute values are interval grey numbers and some of them are null values, a decision model based on grey rough sets integration with incomplete... In this paper, for multiple attribute decision-making problem in which attribute values are interval grey numbers and some of them are null values, a decision model based on grey rough sets integration with incomplete information is proposed. We put forward incidence degree coefficient formula for grey interval, by information entropy theory and analysis technique, the method and principle is presented to fill up null values. We also establish the method of grey interval incidence cluster. Because grey system theory and Rough set theory are complementary each other, decision table with preference information is obtained by the result of grey incidence cluster. An algorithm for inducing decision rules based on rough set theory and the dominance relationship is presented. In some extent, this algorithm can deal with decision-making problem in which the attribute values are interval grey numbers and some of them are null values. Contrasted with classical model of cluster decision-making, the algorithm has an advantage of flexibility and compatibility to new information. 展开更多
关键词 grey system theory rough set incidence cluster interval grey number entropy null value
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Novel method for hybrid multiple attribute decision making based on TODIM method 被引量:1
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作者 Fang Wang Hua Li 《Journal of Systems Science & Complexity》 SCIE EI CSCD 2015年第5期1023-1031,共9页
The TODIM(an acronym in Portuguese for interactive and multiple attribute decision making) method is a valuable tool to solve the multiple attribute decision making(MADM) problems considering the behavior of the decis... The TODIM(an acronym in Portuguese for interactive and multiple attribute decision making) method is a valuable tool to solve the multiple attribute decision making(MADM) problems considering the behavior of the decision maker(DM), while it cannot be used to handle the problem with unknown weight information on attributes. In this paper, a novel method based on the classical TODIM method is proposed to solve the hybrid MADM problems with unknown weight information on attributes,in which attribute values are represented in four different formats:crisp numbers, interval numbers, triangular fuzzy numbers and trapezoidal fuzzy numbers. Firstly, the positive-ideal alternative and negative-ideal alternative are determined, and the gain and loss matrices are constructed by calculating the gain and loss of each alternative relatived to the ideal alternatives concerning each attribute based on different distance calculation formulas, which may avoid the information missing or information distortion in the process of unifying multiform attribute values into a certain representation form. Secondly, an optimization model based on the maximizing deviation(MD) method, by which the attribute weights can be determined, is established for the TODIM method. Further, the calculation steps to solve the hybrid MADM problems are given. Finally, two numerical examples are presented to illustrate the usefulness of the proposed method, and the results show that the DM's psychological behavior, attribute weights and the transformed information would highly affect the ranking orders of alternatives. 展开更多
关键词 hybrid multiple attribute decision making TODIM RANKING
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