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1.
运用多维偏好线性规划耦合赋权方法(即PC—LINMAP耦合赋权方法),以统计样本优劣排序——LINMAP耦合赋权方法计算的权重作为修正,分别确定各指标权重,用多层次模糊综合评判法建立了学生工作绩效的综合评价数学模型.  相似文献   

2.
尝试采用组合赋权法对云南灌区综合效益评价指标体系进行赋权.该方法通过结合两种典型的主客观赋权方法,而后求解模型得出灌区综合效益评价各指标的最终权重值.分析计算结果不难发现,应用组合赋权法获得的指标权重全部介于主、客观赋权法之间,说明其从一定程度上克服了两种权重的片面性,从而也使综合评价结果愈加科学合理.  相似文献   

3.
综合赋权法在灌区节水改造评价中的应用   总被引:1,自引:0,他引:1  
为了对大型灌区节水改造项目进行科学合理的评价;应用综合集成赋权法对灌区评价指标权重进行计算,计算结果表明,与单纯的主观赋权法和客观赋权法相比,综合集成赋权法能够兼顾主客观影响因素,得出更为科学合理的权重计算结果;将该方法应用于陕西省关中大型灌区节水改造项目效益评价中,得出了令人满意的评价结果.说明在灌区评价指标权重确定时综合集成赋权法比单纯的主、客观赋权方法优越,得出的结果更合理,有更好的适用性.  相似文献   

4.
为有效解决多目标决策中存在的不确定性问题,提出考虑主客观因素模糊区间的综合赋权方法.首先利用模糊层次分析法确定反映决策者主观偏好的主观权重,其次引入区间数的相离度概念提取客观决策信息,最后利用基于博弈论的综合赋权方法确定综合权重,并根据综合权重选出最佳调度方案.该方法在金沙江下游梯级水库群多目标优化调度中的应用结果表明...  相似文献   

5.
两种综合赋权法在灌区评价中的应用研究   总被引:2,自引:0,他引:2  
阐述了基于离差平方和以及基于博弈论的综合集成赋权法的原理,并对这两种赋权法在灌区评价权重确定中的应用及其结果做了比较研究.分析结果表明,基于离差平方和以及基于博弈论的综合集成赋权法的指导思想虽然不同,但其原理都是科学合理的.在确定灌区评价权重时,若为了对各评价灌区对象充分拉开档次,可选用基于离差平方和的综合赋权法,当希望尽可能保留各主客观权重值的信息时,可选用基于博弈论的综合赋权法.  相似文献   

6.
从城市水资源系统的角度,构建城市水资源可持续开发利用综合评价指标体系,提出4个准则层指标和26个基础层指标.利用主观赋权和客观赋权相结合的综合权重法进行赋权.根据权重综合计算得到哈尔滨市水资源可持续开发利用综合评价指数.评价结果可表明哈尔滨市水资源可持续开发利用情况,可为哈尔滨市城市水资源的管理规划及相关政策制定提供科学依据.  相似文献   

7.
 讨论了权重完全未知且属性值为区间数的多属性决策问题,提出了一种基于理想区间数贴近度的决策方法。首先定义区间数的距离,并给出区间数贴近度的公理化定义,讨论区间数贴近度的性质,然后针对区间型多属性决策问题给出一种区间型决策矩阵的规范化方法,并给出3种确定权重的方法,分别是模糊标度重心赋权法(主观赋权法)、基于最小相对熵原理的熵与相对熵综合赋权法(客观赋权法)以及利用优化方法,以待评方案与理想最优方案的贴近度最大化为优化目标,建立的贴近度最大化赋权法(主、客观组合赋权法)。利用权重可计算出每个方案与理想方案的综合贴近度,即可得到所有方案的排序结果。最后通过实例分析验证了该方法的有效性和实用性。  相似文献   

8.
组合赋权法在河流健康评价权重计算中的应用   总被引:1,自引:0,他引:1  
引进基于博弈论的组合赋权思想,利用主观赋权法(层次分析法)与客观赋权法(熵值法)相结合得到的组合赋权法来计算权重,既避免了主观赋权法的主观性,又避免了客观赋权法的绝对客观性。选取海河流域永定河为研究区,用组合赋权法计算永定河河流健康评价指标体系的权重,从而判断各指标对河流健康的影响程度。研究表明,通过组合赋权法得到的指标权重克服了单一权重的片面性,使得综合评价更合理,更科学,最后得到的结果也较符合实际情况,具有较好的解释性和说明性。  相似文献   

9.
李萍 《科技信息》2009,(22):I0092-I0092,I0096
本文利用模糊数学原理对高校教师教学进行综合评价,采用最小二乘法确立权重,对分离的主观权重和客观权重进行组合优化赋权,使得权重更符合实际。进而利用模糊数学方法进行综合评判,可以使传统的单一定性评语定量化,增强了评价过程的透明度和公开性。  相似文献   

10.
针对港口物流竞争力评价体系中多指标评价问题,研究采用主观评价与客观赋权相结合的综合赋权方法。根据层次分析法和信息论中的熵理论计算各指标的权重,运用综合赋权方法得到融合评价者主观偏好及数据客观属性的综合权值,建立多指标综合赋权评价模型。将建立的评价模型应用于我国沿海部分港口物流竞争力的评价中,并与仅采用层次分析法和信息熵的评价结果对比分析,结果表明基于综合赋权法的评价模型在港口物流竞争力的评价中是合理和有效的。  相似文献   

11.
Language markedness is a common phenomenon in languages, and is reflected from hearing, vision and sense, i.e. the variation in the three aspects such as phonology, morphology and semantics. This paper focuses on the interpretation of markedness in language use following the three perspectives, i.e. pragmatic interpretation, psychological interpretation and cognitive interpretation, with an aim to define the function of markedness.  相似文献   

12.
理论推导与室内实验相结合,建立了低渗透非均质砂岩油藏启动压力梯度确定方法。首先借助油藏流场与电场相似的原理,推导了非均质砂岩油藏启动压力梯度计算公式。其次基于稳定流实验方法,建立了非均质砂岩油藏启动压力梯度测试方法。结果表明:低渗透非均质砂岩油藏的启动压力梯度确定遵循两个等效原则。平面非均质油藏的启动压力梯度等于各级渗透率段的启动压力梯度关于长度的加权平均;纵向非均质油藏的启动压力梯度等于各渗透率层的启动压力梯度关于渗透率与渗流面积乘积的加权平均。研究成果可用于有效指导低渗透非均质砂岩油藏的合理井距确定,促进该类油藏的高效开发。  相似文献   

13.
As an American modern novelist who were famous in the literary world, Hemingway was not a person who always followed the trend but a sharp observer. At the same time, he was a tragedy maestro, he paid great attention on existence, fate and end-result. The dramatis personae's tragedy of his works was an extreme limit by all means tragedy on the meaning of fearless challenge that failed. The beauty of tragedy was not produced on the destruction of life, but now this kind of value was in the impact activity. They performed for the reader about the tragedy on challenging for the limit and the death.  相似文献   

14.
正The periodicity of the elements and the non-reactivity of the inner-shell electrons are two related principles of chemistry,rooted in the atomic shell structure.Within compounds,Group I elements,for example,invariably assume the+1 oxidation state,and their chemical properties differ completely from those of the p-block elements.These general rules govern our understanding of chemical structures and reactions.Using first principles calcula-  相似文献   

15.
We have developed an adiabatic connection to formulate the ground-state exchange-correlation energy in terms of pairing matrix linear fluctuations.This formulation of the exchange-correlation energy opens a new channel for density functional approximations based on the many-body perturbation theory.We illustrate the potential of such approaches with an approximation based on the particle-particle Random Phase Approximation(pp-RPA).This re-  相似文献   

16.
正The electronic and nuclear(structural/vibrational)response of 1D-3D nanoscale systems to electric fields gives rise to a host of optical,mechanical,spectral,etc.properties that are of high theoretical and applied interest.Due to the computational difficulty of treating such large systems it is convenient to model them as infinite and periodic(at least,in first approximation).The fundamental theoretical/computational problem in doing so is that  相似文献   

17.
For molecular systems,the quantum-mechanical treatment of their responses to static electromagnetic fields usually employs a scalar-potential treatment of the electric field and a vector-potential treatment of the magnetic field.Although the potential for each field separately is associated with the choice of an(unphysical)origin,the precise choice of the origin for the electrostatic field has little consequences for the results.This is different for the  相似文献   

18.
Franck-Condon factors bridge the gap between theoretical modeling and experimental observations for molecular electronic spectroscopy and electron transfer.Under the displaced harmonic oscillator approximation,multidimensional Franck-Condon factors are decomposed into a product of many one-dimensional(1D)Franck-Condon(FC)factors,and each 1D-FC factor is associated with one Huang-Rhys factor that determines the leading contribution of  相似文献   

19.
<正>"The Journal of Shanghai Normal University:Mathematics"is published by Shanghai Normal University as regular issues of The Journal of Shanghai Normal University each year from 2014 in English.The editors-in-chief of the issues are professors Yuhao Cong and Maoan Han.The Journal of Shanghai Normal University was started in 1958 with  相似文献   

20.
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