查询词典 extreme value

Its theory is: evaluate periodical by various methods, and then make the results standardization, select the extreme value of these results as the final score of periodical. The research indicates that it is must been used carefully to calculate weight by combined assessing method; assessing methods based on order can't been used to combine; combined assessing based on extreme value method is propitious to establish harmonious relationship between assessor and assessee.

其原理是，首先选用各种可行的评价方法进行评价，然后将评价结果标准化，将同一期刊不同评价结果的极大值作为该期刊的最终评价结果，取得了较好的效果，研究表明，采用组合评价进行权重计算必须慎重使用；基于秩序的评价方法不能用于组合；基于极值法的组合评价方法有利于建立和谐的评价者与被评价者关系，结果容易得到公认。

Focusing the measurement of financial risk of extreme, this study empirically investigated the extreme risks of Chinese stock market based the theoretical researches of extreme value and relevant conclusions.This dissertation made an in-depth study on the type and nature of the asymptotic distribution of extreme value.

另外，我国正处在经济转型期，虽已初步建立起以国有商业银行为主体的商业性金融体系，但金融体制的市场改革依然远远滞后于其它经济部门，整体行业受政策影响较大，市场运行机制经常发生变化，金融体系风险非但没有降低，反而不断积聚，金融市场动荡加剧，作为市场经济晴雨表的沪深股票市场频频的巨幅涨跌即清楚地表示了金融体系的震荡状况。

This paper proposes a new probability model-Multivariate compound extreme value distribution to predict 'typhoon-induced rainfall for the Wenzhou City in Zhejiang Province.

作者采用多维复合极值分布理论(Multivariate compound extreme value distribution)，以受台风暴雨危害较严重的浙江温州地区为例，对台风诱发暴雨的降水量进行了概率预测。

The 7-day low flow was regarded as statistical quantity, on the base of analysis of the discordancy measure and heterogeneity measure, the regional low flow frequency for Donjiang basin was carried out using L-moments based five frequency distributions with three parameters viz. Generalized Pareto, Generalized extreme-value, Generalized Logistic, Lognormal (LN3) and Pearson type Ⅲ. Based on the L-moments ratio diagram,{Z} and τ4-statistic criteria, LN3 distribution was identified as the most appropriate distribution for the homogeneous region with the 14 sites.

以年最小七日平均流量作为枯水径流的统计特征量，在水文站点一致性分析、水文相似区鉴别的基础上，以常见的5种三参数分布函数：Generalized Pareto分布、Generalized Extreme-Value分布、Generalized Logistic分布、LogNormal分布(LN3)和Pearson type Ⅲ为研究对象进行东江流域区域枯水频率分析。

This article estimates the extreme loss distribution with extreme value theory, estimates the shape parameter with HKKP estimator, which is unbiased to small sample data, selects the right threshold by selecting smallest mean square error of the estimated cumulative distribution function and empirical cumulative distribution function and based on the extreme value theory method, this article estimates the extreme loss distribution and the p-percentile operational loss under certain believe range for Chinese commercial banks, then calculates the operational risk supervise capital.

本文利用极值理论对中国商业银行操作损失极端值分布进行估计，针对尾参数估计的来用传统Hill佑计对小样本数据容易产生偏倚的情况，提出了采用Hill佑计的改进―小样本无偏估计的HKKP佑计来估计操作损失的尾参数，针对由于阈值确定不准确导致结果偏差大的情况，采用最小化估计的累计概率分布与经验累计概率分布平均平方误差的方法确定较精确的阈值，估计出给定置信水平下操作风险损失的分位数，从而使得中国商业银行操作风险监管资本的测定成为可能。

In this dissertation, the properties of extreme value models, parametric estimations of compound extreme value distribution and their applications in financial risk management fields are studied intensively.

本文主要对极值统计模型的特性、复合极值分布参数的估计方法以及极值统计模型在金融风险管理领域的应用进行研究。

With the discussion of extreme value problem of the multiple-valued function,and the popularizing of extreme value theory of the two-value function,This paper obtains differentiation rule about the extreme value of the multiple-value function,and illustrates the apllication of the theory with the example,providing proper guidance for the teaching of calculus.

文章讨论了多元函数的极值问题，并将二元函数的极值判定定理加以推广，得到关于多元函数极值的判定法则，并举例说明其应用，这对微积分的教学有一定的指导意义。

On the basis of analyzing detailedly the correlative conclusions of the extreme value problem of two variable Function , this paper extends the essential condition and sufficient condition to multi-variable function by using the Taylor Formula 、Quadratic Form 、Hesse Matrix and so on,and gives a method to judge the extreme value of point whose vice-derivative doesn't exist by utilizing Lagranges theorem ,so that compensates for the blank above ,which turns idea that solve the extreme value of multi-variable function problem one by one into realities.

摘要本文在对二元函数极值问题的相关结论进行分析的基础上，用泰勒公式、二次型、海赛矩阵作为工具，将二元函数极值的必要条件和充分条件推广到多元函数的情形，而且还利用拉格朗日中值定理找到了一个判别不可导点处极值的方法，从而弥补了多元函数不可导点处极值无法判断的空缺。因而，使得用穷举判断的方法来解决多元函数的极值问题这一思路成为现实。

If the number of the wave bending moment cycles is large enough, the most probable extreme value will be the characteristic maximum value , and the design extreme value will be the design maximum value.

在真安海浪中，垂向波浪穹矩是一十随枇社程。在各国级范中，它通常取力在使用期中平均可能出现一次的最大值。

The spatial distribution of current extreme precipitation and extreme value with a return period indicate that extreme precipitation decreases from southeast to northwest, there is also a high value in Two-lakes basin, HuangHai bay and Liaotung peninsula.

从当前极端降水分布和给定重现期的极端降水的空间分布来看，我国东部极端降水的区域差异较大，总体上是由东南向西北递减，两湖盆地、黄海海湾及辽东半岛也有高值分布。

In the United States, chronic alcoholism and hepatitis C are the most common ones.

在美国，慢性酒精中毒，肝炎是最常见的。

If you have any questions, you can contact me anytime.

如果有任何问题，你可以随时联系我。