层次分析法中矩阵的判断一致性研究

目的 研究层次分析法中判断矩阵可接受性及一致性的改善问题。方法 引入判断一致性矩阵概念,利用判断平均特性修正矩阵的方法,进行层次分析法的灵敏性分析,在严格证明理论结果的基础上,对一般情况进行统计模拟。结果与结论 判断一致性为实际应用中合理接受判断矩阵打开了一个新的思路。     

层次分析法中判断矩阵一致性的改进研究

运用模糊理论对层次分析法中判断矩阵的一致性进行了改进。通过引入模糊一致矩阵,从根本上解决了层次分析法中判断矩阵的一致性问题,得到了一些有理论和实用意义的结果。     

层次分析法中判断矩阵一致性的改进研究

运用模糊理论对层次分析法中判断矩阵的一致性进行了改进.通过引入模糊一致矩阵,从根本上解决了层次分析法中判断矩阵的一致性问题,得到了一些有理论和实用意义的结果.     

改进的模糊层次分析法

目的 改进传统的层次分析法。方法 将互反型判断矩阵改为模糊一致性判断矩阵，并把和行归一法或方根法与特征向量法结合使用，提出了改进的模糊层次分析法。结果 指出传统的层次分析法往往会导致判断矩阵不满足一致性条件，需要检验和修正，而且计算精度不高。改进后的模糊层次分析法既解决了判断矩阵的一致性问题，又解决了解的收敛速度及精度问题，以此求得与实际相符的排序向量。结论 改进传统的层次分析法较传统的层次分析法更加完善和行之有效，并符合人们的思维逻辑，形式简单，准确，且易建立。另外，由优先判断矩阵改造而成的模糊一致性矩阵满足一致性条件，无需再进行一致性检验，同时也可大大减少叠代次数，提高收敛速度，满足计算精度的要求．从而为多目标决策提供了较为可靠的决策方法。     

改进层次分析法对提金工艺风险权重系统确定

为了解决传统层次分析法在矩阵解的精度上存在的欠缺,获得更优越权重系统,采用改进层次分析法,提出新的指数标度.所需判断信息简单、直观,易为专家和决策者接受与掌握, 计算分析后所得的判断矩阵自然满足一致性要求,不需要进行一致性检验.与传统层次分析法进行结果比较,证明该方法更能得出可靠的权重排序值,具有较大的适用性.     

层次分析法的改进方法在煤矿安全评价中的应用

针对研究煤矿安全评价中层次分析法判断矩阵一致性及排序权值的求解问题.基于煤矿环境的特殊性及系统的复杂性,为能够全面评价煤矿的安全状况,采用层次分析法对煤矿进行安全评价.判断矩阵的一致性保证、权重的求解是层次分析法的主要环节,如何求得元素的权重并确保判断矩阵满足一致性是层次分析法的主要研究方向.采用遗传算法求解判断矩阵排序权值,并运用模糊综合评价法对煤矿系统安全进行综合评价.     

层次分析法改进及其在橡胶林种植对流域输沙影响评价中的应用

层次分析法广泛应用于指标权重计算和决策,但在判断矩阵构造和一致性检验中存在局限性.针对传统层次分析法及其现有改进方法所存在的数值标度和一致性检验两个关键问题,提出通过无限制标度建立与专家判断初衷更为吻合的因素间相对重要程度数值标度方法,并通过传递的方式构造完全一致性矩阵,对不满足一致性的原判断矩阵根据最大差异项进行调整.云南橡胶林种植对流域输沙影响评价指标权重确定应用实例表明,该改造方法降低了专家对判断矩阵数值标度的难度,并在解决判断矩阵不满足一致性问题的同时最大程度保留了原判断矩阵的信息.     

一种改进的层次分析法及其在效能评估中的应用

本文提出了一种改进的层次分析法(I-AHP),该方法通过计算判断矩阵所对应的行列式值,根据其绝对值与1的关系来判定矩阵的一致性好坏,对于绝对值大于1的判断矩阵再考察其元素的次序一致性,若满足次序一致性则矩阵的一致性可以接受;I-AHP法避免了传统层次分析法在分析二维矩阵一致性时的结论与实际情况不符的问题.I-AHP法在防空信息战效能评估中应用的算例结果表明了这种改进的合理性.     

AHP中判断矩阵次序一致性的判定与改进

研究层次分析法中判断矩阵次序一致性的判定与改进方法。利用离散数学中关系的性质和运算给出判断矩阵次序一致性的判定方法。通过引进关系矩阵和关系图可以有效地找出判断矩阵中所有不合逻辑的元素。最后给出改进判断矩阵次序一致性的原则。     

判断矩阵一致性分析

判断矩阵的一致性是层次分析法中的关键问题之一,本文分析了判断矩阵出现不一致性的原因,论述了判断矩阵一致性和可靠性的关系。提出了改进判断矩阵一致性应注意的问题。     

Markedness and its Interpretation in Language Use

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.     

Features of Women's language

Language is a means of verbal communication. People use language to communicate with each other. In the society, no two speakers are exactly alike in the way of speaking. Some differences are due to age, gender, statue and personality. Above all, gender is one of the obvious reasons. The writer of this paper tries to describe the features of women＇s language from these perspectives： pronunciation, intonation, diction, subjects, grammar and discourse. From the discussion of the features of women＇s language, more attention should be paid to language use in social context. What＇s more, the linguistic phenomena in a speaking community can be understood more thoroughly.     

An Analysis of Catherine＇s Character——Wuthering Heights

Wuthering Heights, Emily Bronte＇s only novel, was published in December of 1847 under the pseudonym Ellis Bell. The book did not gain immediate success, but it is now thought one of the finest novels in the English language. Catherine is the key character of this masterpiece, because everybody and everything center on her though she had a short life. We can understand this masterpiece better if we know Catherine well.     

Lower Paleozoic oil relationships within Williston Basin, Canada

The Williston Basin is a significant petroleum province, containing oil production zones that include the Middle Cambrian to Lower Ordovician, Upper Ordovician, Middle Devonian, Upper Devonian and Mississippian and within the Jurassic and Cretaceous. The oils of the Williston Basin exhibit a wide range of geochemical characteristics defined as "oil families", although the geochemical signature of the Cambrian Deadwood Formation and Lower Ordovician Winnipeg reservoired oils does not match any "oil family". Despite their close stratigraphic proximity, it is evident that the oils of the Lower Palaeozoic within the Williston Basin are distinct. This suggests the presence of a new "oil family" within the Williston Basin. Diagnostic geochemical signatures occur in the gasoline range chromatograms, within saturate fraction gas chromatograms and biomarker fingerprints. However, some of the established criteria and cross-plots that are currently used to segregate oils into distinct genetic families within the basin do not always meet with success, particularly when applied to the Lower Palaeozoic oils of the Deadwood and Winnipeg Formation.     

低渗透非均质砂岩油藏启动压力梯度研究

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。     

On Tragic Consciousness In The Works By Ernest Hemingway

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.     

Design and analysis of generic LBS application developing platform

Location based services is promising due to its novel working style and contents.A software platform is proposed to provide application programs of typical location based services and support new applications developing efficiently. The analysis shows that this scheme is easy implemented, low cost and adapt to all kinds of mobile nework system.     

Achieving Unusual States of Matter Under High Pressure

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-     

Exchange-Correlation and Electronic Excitation Energies from Pairing Matrix Fluctuations

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-     

Density Functional Theory for the Response of Periodic Systems to Electric Fields Based on the Vector Potential Approach

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