基于蕴涵算子族L-λ-G的模糊推理三Ⅰ约束算法

提出了基于蕴涵算子族L-λ-G的模糊推理的思想,这将有助于提高模糊推理结果的效果. 针对蕴涵算子族L-λ-G给出了模糊推理的FMP模型及FMT模型的三I约束算法、α-三I约束算法.     

基于蕴涵算子族L-λ-R0的模糊推理反向α-三I约束算法

提出了基于蕴涵算子族L-λ-R0的模糊推理的思想,这将有助于提高推理结果的可靠性.针对蕴涵算子族L-λ-R0给出了模糊推理的FMP模型及FMT模型的反向α-三I约束算法.     

基于蕴涵算子族L-λ-G的模糊推理三I支持算法

提出了基于蕴涵算子族L -λ-G的模糊推理的思想,这将有助于提高推理结果的效果.针对蕴涵算子族L-λ-G 给出了模糊推理的FMP模型及FMT模型的三I支持算法、α-三I支持算法.     

CPI数据预测计算的ANFIS模型结构探讨

依据CPI经济序列数据确定性混沌原理,探讨自适应神经模糊推理系统模型构造,并给出此类混沌数据列预测的ANFIS系统结构形式,进行CPI经济序列数据预测.并用实例拟合、预测数据证明:ANFIS模型是一种精度较高的混沌数据序列预报系统.为CPI数据预测提供了一种计算方法.     

基于蕴涵算子族L-λ-G的模糊推理三Ⅰ支持算法

提出了基于蕴涵算子族L-λ-G的模糊推理的思想,这将有助于提高推理结果的效果.针对蕴涵算子族L-λ-G给出了模糊推理的FMP模型及FMT模型的三Ⅰ支持算法、α-三Ⅰ支持算法。     

二型模糊集下的推理模型及Mamdani推理算法

在二型模糊集理论的基础上,讨论了二型模糊集下的三种模糊推理模型,研究了模糊推理模型的Mamdani推理算法,证明了Mamdani推理算法具有单调性质.     

基于剩余蕴涵算子族Lp的三Ⅰ支持算法

研究了基子剩余型蕴涵算子族Lp的模糊推理的三Ⅰ支持算法,给出了FMP模型与FMT模型的三Ⅰ算法的几种计算公式,并讨论了其还原性.     

一类非线性波动方程位势井深度函数的连续性

本文研究一类非线性波动方程位势井深度函数的连续性.通过引入位势井深度函数并给出其性质,给出了位势井深度函数连续性的证明.而位势井深度函数连续性保证了在其基础上得到的位势井族有意义.     

模糊推理的基本理论

模糊推理已经在多个领域得到成功的应用,同时,模糊推理的理论研究也取得较大的进展.本文针对模糊推理研究文献比较杂乱和零散的情况,系统地构建模糊推理的理论体系.从模糊推理的理论研究和一些实际应用提取出五个基本模型,简要评述模糊推理的三个重要方法,仔细讨论评判模糊推理方法优劣的五个准则,进一步明确与模糊推理有关的一些概念及相互关系,统一有关的术语与记号,综述相关的研究成果,同时给出一些新的观点和结果.     

优化背景值的GM(1,1)幂模型及其应用

GM(1,1)幂模型中幂指数的连续性,使得模型在一般的S形曲线序列的预测和拟合中具有更广泛的实用性.通过将背景值转化为相邻序列点的确定性函数建立了改进的GM(1,1)幂模型,给出了背景值序列的有关性质,借助已有文献中的算例验证了模型在拟合和预测方面的优越性.     

On the distributions of the ratios of the extreme roots to the trace of the Wishart matrix

In this paper, the authors cosider the derivation of the exact distributions of the ratios of the extreme roots to the trace of the Wishart matrix. Also, exact percentage points of these distributions are given and their applications are discussed.     

On the comparison between the APV and the NPV computed via the WACC

The valuation of levered investment in the practice is made with the WACC approach, even if the superior technique of the APV is available. The paper shows that the APV can be interpreted as the arbitrage free value of the portfolio made by an investment and a supporting loan. Therefore the WACC evaluation, generally different from the APV, allows for arbitrage. We provide various conditions which completely characterize the sign of the error as a functions of all the variables entering the model.     

用常微分方程模型分析预防和隔离措施对SARS发病率的影响

通过建立常微分方程模型 ,分析了预防和隔离措施对 SARS发病率的影响 ,并把计算结果与实际统计数据进行了比较 ,结果表明 ,及时高效的预防和隔离措施能够有效地控制 SARS的传播 .     

On the Gap in the Spectrum of the Translations

The spectrum of the translations in local quantum field theory will be analyzed in order to show that in a positive energy representation without vacuum vector and with lowest mass m₁ there is no gap in the spectrum which is larger than 2m₁. In particular in a zero mass representation there is no hole at all. These results are obtained with methods of analytic functions of several complex variables.     

From the subalgebras of the square to the discriminator

Presented by A. F. Pixley.     

From the neutrino to the edge of the universe

Two recent findings necessitate a closer look at the existing standard models of particle physics and cosmology. These are the discovery of neutrino oscillation, and hence a non-zero mass on the one hand and, on the other, observations of distant supernovae which indicate that contrary to popular belief, the universe would continue to expand for ever, possibly accelerating in the process. In this paper it is pointed out that relatively recent studies which indicate a stochastic, quantum vacuum underpinning and a fractal structure for space time, reconcile both of the recent observations, harmoniously.     

On the dependence of the growth rate on the length of the defining relator

Let { } be a sequence of finitely presented groups with generating setA={a1, …, am}, and letRk be the symmetrized set of words over the alphabetA∪A−1 obtained from the defining words and their inverses by all cyclic shifts. We shall assume that the words inRk are cyclically irreducible, and their lengths tend to ∞ ask increases. In the paper, it is proved that ifRk satisfies the small cancellation conditionC'(1/6) and the number of relators increases not very rapidly with increasingk, then the growth rate ψ(Gk) tends to 2m−1 ask→∞. Translated fromMatematicheskie Zametki, Vol. 65, No. 4, pp. 611–617, April, 1999.