基于模糊偏好信息和WGA算子的多属性决策分析

针对有决策者偏好信息的多属性决策问题,提出了一种基于模糊集和加权几何平均算子（WGA）的决策分析方法。应用模糊集理论,根据决策者的偏好对决策属性给出隶属函数,然后由隶属函数对决策属性进行赋权,再利用加权几何平均算子计算综合属性值进行方案集的排序与择优,最后通过实例验证了所给出方法的可行性和有效性。     

区间直觉正态模糊数的OWGA算子及其在多属性群决策中应用

针对准则值为区间直觉正态模糊数(IVINFN)的群决策问题,探讨了区间直觉正态模糊数的运算法则;考虑决策者的乐观程度,定义了区间直觉正态模糊数的得分函数,给出其排序方法;再得到区间直觉正态模糊数的有序加权几何平均(IVINFN-OWGA)算子和连续有序加权几何平均(IVINFN-COWG)算子;最后,建立了基于区间直觉正态模糊数的多属性决策模型,提出了相应的群决策方法,并且通过实例分析验证了该方法的可行性和有效性.     

多粒度语言评价信息的动态多属性决策方法

针对多粒度语言评价信息的动态多属性决策问题,基于语义的模糊化函数将不同粒度的语言评价信息映射为同一区间上的三角模糊数,并给出模糊有序加权几何平均算子。通过该算子对各时段属性信息进行横向和纵向集结,从而得到方案的排序。最后经过实例分析,说明该方法的有效性和可行性。     

多人层次分析几何平均算法原理

在多人层次分析法(GAHP)中,几何平均综合排序向量是常用的较好算法,该文论证了它作为多人偏好测度的算法原理和保序性。     

基于二元语义的不确定性多属性决策的4种集成算子

由于二元语义的排序方法不能处理结果之间相互包含的情况,因此在不确定性语言环境下,文章给出了区间二元语义[20,21]的新的排序方法,并给出了不确定性二元组的4种集成算子,即不确定性语言二元组几何平均算子、不确定性语言二元组加权几何算子、不确定性语言二元组有序加权几何平均算子及不确定性语言二元组混合集成算子,4种集成算子解决了对集成结果只有细微差别时难以评价优劣的问题,并研究了算子的基本性质,通过应用实例对其实用性及优越性给出证明。     

随机利率下亚式期权定价的新方法

讨论了利率服从Vasicek利率模型,股票价格遵循分数布朗运动的几何平均亚式期权定价问题。基于可靠性数学思想,在无套利条件下,给出了Vasicek利率模型下几何平均亚式期权的定价公式,推广了利率为常数或者关于t的函数的情形。     

综合目标函数的构造对多目标优化过程的影响

讨论了综合目标函数的线性加权法、几何平均法与平方和加权法对多目标优化过程的影响,并指出几何平均法和平方和加权法当分别用于极大化和极小化时能够适当抑制各分目标之间的等价交换,且其等值线的弯曲方向对优化过程具有导向作用。将几何平均法与平方和加权法应用于叉车转向机构优化设计中,取得了很好的效果。     

群体思维的收敛性

提出了专家意见表达的第4种形式：尺度变换向量。证明了当专家数足够多时，加权算术平均与加权几何平均两种集成方式都依概率收敛到客观排序尺度变换向量，从而验证了群体思维具有收敛性。     

一种互反判断矩阵残缺值和排序的推断方法及应用

针对多维决策中判断矩阵信息不完整的情况,提出了一种加权最小二乘法拟合残缺值和排序向量的算法.首先,定义了一种残缺矩阵的伴随矩阵表达方式,通过残缺矩阵和其伴随矩阵建立一个非线性最小二乘模型,拟合得到残缺互反判断矩阵的排序向量;然后通过偏差最小化公式解出残缺元素,得到完整的专家判断矩阵,用特征值法求出排序向量;最后,将拟合得到的排序向量和补充完整的判断矩阵排序向量通过几何平均得到最终排序向量.用算例说明了方法的可行性及有效性.     

算术—几何平均不等式的一个改进

用多元函数极值方法建立了涉及算术平均与几何平均值的一不等式,它是著名的算术—几何平均不等式的改进.     

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.     

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.     

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     

On the Thermodynamic Limit for Responses to Static Electromagnetic Fields

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     

An affordable accurate evaluation of the binding conformations predicted by molecular docking studies in bio-system

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     

Call for Papers

<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