一种新的直觉模糊推理方法

在直觉模糊集的基础上提出一种新的模糊推理方法--直觉模糊集相似度推理方法,并且对该种方法的还原性进行讨论,给出满足还原算法的条件.     

基于相似度的信息权重模糊推理方法

在陈永义等提出的模糊集特征展开近似推理方法的基础上,提出了一种广义的模糊集特征展开推理方法的数学模型,实际上也是一种基于相似度的加权模糊推理方法,并给出了一种基于模糊信息的权重确定方法.     

基于三角模的直觉相似度及其应用

为了将直觉模糊集的相似度分析纳入到逻辑推理的框架之中,借助三角模和蕴涵算子以不同的方式构造了两种直觉模糊集的相似度,并证明了其满足相似度的四条公理。作为应用,首先以所构造的相似度为衡量指标解决了一个关于伤寒病症的医疗诊断问题,经过数据分析,得到了与直观吻合的结果。其次,以所构造的相似度为扰动参数,分析了逻辑连接词直觉三角模和直觉蕴涵的鲁棒性,进而对直觉模糊取式问题的全蕴涵推理方法和推理合成规则方法进行了鲁棒性估计,结果表明当输入的扰动非常小时,输出的结果变化也很小,两种推理方法均具有良好的鲁棒性。     

基于区间值相似度的直觉区间值模糊推理

直觉区间值模糊集具有比直觉模糊集更强大的模糊信息表达能力并且其直觉区间值隶属度和非隶属度的值较易确定.文章利用直觉区间值模糊集进行模糊推理.根据直觉区间值隶属度和非隶属度的值给出直觉区间值模糊集之间相似度和加权总体相似度的计算方法.根据该计算方法给出直觉区间值模糊集上的模糊推理算法.最后通过算例说明所给出的推理算法更符合实际需要,可操作性强,便于应用.     

一种新的特征展开模糊推理方法

在Zadeh提出的模糊推理合成规则及陈永义等提出的模糊集特征展开近似推理方法的基础上,给出了新的模糊推理合成方法,定义了模糊集的一种新的特征展式,分别给出了计算一般模糊推理和双重蕴涵命题模糊推理的新方法,并把它们推广到一般情形,即一个模糊推理系统是由一组多重蕴涵命题组成的情形,得到一种新的模糊集特征展开推理方法.这种方法使得模糊推理合成计算简单,给Fuzzy控制器的设计带来方便.     

应用Lukasiewicz蕴涵的O型模糊推理

基于Ｏ型模糊集的模糊推理称为Ｏ型模糊推理，本文给出了应用Ｌｕｋａｓｉｅｗｉｃｚ蕴涵的Ｏ型模糊推理方法，并讨论这一推理方法的良好性质。     

具有三种否定的模糊推理算法及应用

模糊推理中,合成规则推理方法（compositional rule of inference, CRI）与基于贴近度的方法（similarity based approximate reasoning,SAR）都是建立在只有一种否定的经典模糊集上。针对广义模糊集GFScom(generalized fuzzy sets with contradictory, opposite and medium negation)具有三种否定（矛盾否定、对立否定、中介否定）的特点,对模糊推理方法 CRI的蕴含算子作了扩展。提出了具有三种否定的GFScom贴近度定义和公式,得到模糊近似推理的一种新的计算形式GSAR方法,证明了GSAR该方法具有FMP(fuzzy modus ponens)还原性。通过应用实例对比,模糊推理GSAR的新方法不仅克服了CRI方法在建立模糊关系矩阵具有主观性和随意性的不足,而且客观有效地反映了模糊推理中的3种否定信息,丰富了模糊推理的形式。     

犹豫模糊熵生成算法及在后勤补给基地选址评估中的应用

为了定量地刻画犹豫模糊信息的不确定性程度,将犹豫模糊元和区间值犹豫模糊元的熵推广成了犹豫模糊集和区间值犹豫模糊集的熵。首先给出了犹豫模糊集和区间值犹豫模糊集的熵与相似度的公理化定义,在此基础上提出了犹豫模糊集熵和相似度的一般公式,给出了犹豫模糊集的熵和相似度的生成算法。然后研究了犹豫模糊集的熵与相似度间的关系,提出了基于相似度的熵的一般公式。进一步把犹豫模糊集的熵与相似度的关系的有关结论及各自的一般公式和生成算法推广到区间值犹豫模糊集。最后给出了基于犹豫模糊集熵和相似度的后勤补给基地选址方案可靠性分析的数值例子。     

GSI模糊推理模型与其他模糊推理模型的关系

提出GSI(guaranteed similarity-degrees of fuzzy inference method)模糊推理模型的概念,考察该推理模型与其他典型的模糊推理模型之间的关系,证明如在计算公式中使用剩余型伴随对,输入前件为正规模糊集,常用的模糊推理算法如CRI算法、三I算法、基于∧-→合成的FRI算法都是GSI模糊推理算法,由Turksen提出的AARS算法(基于相似度的近似类比推理算法)是GSI模糊推理算法的近似.算例表明GSI模糊推理算法对系统输入比较敏感,具有良好的输入条件区分性能.GSI算法参数可调,具有广泛的适用性.     

表示和处理缺省知识的模糊推理系统的研究

本文应用ｍａｘ－⊙复合运算下，基于模糊关系Ｒｂ的推理方法，提出能够表示和处理缺省知识的模糊推理方法、算法，并用Ｔｕｒｂｏ－ｐｒｏｌｏｇ语言，设计并实现了表示和处理缺省知识的模糊推理系统。     

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     

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     

Journal of Donghua University ( English Edition) Contents of Volume 31

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