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Willem K. Brauers 《海军后勤学研究》2002,49(4):327-340
Multiple Objectives Optimization is much seen in combination with linear functions and even with linear programming, together with an adding of the objectives by using weights. With distance functions, normalization instead of weights is used. It is also possible that together with an additive direct influence of the objectives on the utility function a mutual utility of the objectives exists under the form of a multiplicative representation. A critical comment is brought on some representations of this kind. A full‐multiplicative form may offer other opportunities, which will be discussed at length in an effort to exclude weights and normalization. This theoretical approach is followed by an application for arms procurement. © 2002 Wiley Periodicals, Inc. Naval Research Logistics 49: 327–340, 2002; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/nav.10014 相似文献
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基于粗糙集的飞机空地作战效能多指标综合评估模型 总被引:2,自引:1,他引:1
针对以往效能评估模型中权系数确定的主观性问题,应用粗糙集理论对对地攻击型飞机的各种指标数据进行挖掘,利用信息熵概念求得各指标的属性重要度,并归一化处理为各指标的权系数,克服了传统权系数确定方法的主观性.最后,建立了空地作战效能评估的多指标综合评价模型,通过实例计算验证了该模型的有效性. 相似文献
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The standard issue bayonet of the British Army immediately preceding and during the First World War was the Pattern 1907. This was manufactured at different times and in varying numbers during that period by one official body, the Royal Small Arms Factory at Enfield, and by five private contractors. These bayonets were made according to published official specifications issued by the War Department and based on a ‘pattern example’ provided by the Royal Small Arms Factory. The specifications indicate, inter alia, the quality of metal used in making the bayonets, methods of inspection and proofing, and the required maximum and minimum weight range of the completed bayonet. However, examination of a series of these bayonets in a private collection suggested that their weights varied considerably from the mid-point values of the allowed weight ranges in the original and amended specifications (16.5 oz. and 17 oz., respectively). To establish if this was a common feature among this class of bayonet as opposed to a chance factor, the weights of other surviving Pattern 1907 bayonets were determined and compared to establish the degree of variance from the official specifications as originally set out by the Royal Small Arms Factory. Seventy-six percent of the 142 bayonets surveyed were found to be above the mid-point of the allowed weight range given in the amended manufacturing specifications, with many being at the upper end of the allowed range. This is a statistically unusual result. It is speculated that the target weight may have been deliberately set higher by the individual manufacturers to eliminate the possibility of rejection of any underweight bayonets by the Royal Small Arms Factory inspectors and so a refusal of acceptance and payment for the work. 相似文献
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基于灰熵方法的综合评估 总被引:1,自引:0,他引:1
以灰色系统理论中的灰靶技术为基础,在对原靶心度求解公式加以改进,给出了了一种系统效能的评定方法。首先用灰靶理论建立评定方法的数学模型,以能反映武器系统效能的战技性能指标构造各比较方案或模式的指标序列,进而求得各指标序列的标准模式。通过求各比较模式对标准模式的靶心度,并按大小排序,最终确定各比较方案效能的优劣。方法的计算过程为简单的代数运算,且不涉及传统方法中类似人工打分等带有一定主观性因素,所以,就同时满足可操作性和客观性而言,本方法较传统方法为优。 相似文献
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在群决策专家聚类赋权过程中,可能出现专家给出的判断矩阵一致性比率与排序向量信息熵都相等但专家意见不同,却被赋予了相同权重的情况。针对上述问题,提出一种基于偏差熵的专家聚类赋权方法。该方法采用聚类分析的思想,基于比例构建相似系数,实现对专家群的分类;引入专家判断矩阵的一致性权重,并综合类容量构建权重指标来反映类别间的差异,确定专家类间权重;最后,在各专家类中建立偏差熵模型,依据类中专家达成一致性意见的贡献程度确定专家的类内权重,并得到专家的总体权重。具体算例表明,该方法可行有效。 相似文献
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