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Since Leptokurtosis, skewness and fat-tail are always used to depict market risk, this paper introduces the improved Laplace distribution to risk management of stock portfolio.

在改进型Laplace分布的基础上提出了基于Copula方法与Monte-Carlo模拟的VaR算法。

Since Leptokurtosis, skewness and fat-tail are always used to depict market risk, this paper introduces the improved Laplace distribution to risk management of stock portfolio. Empirical results show, improved Laplace distribution and asymmetric Laplace distribution are similar for estimating Leptokurtosis, while improved Laplace distribution is better for estimating skewness.In order to analyze the correlation between return distribution and volatility, the thesis uses ARCH-M Models to simulate the return series of China's Stock Market and developed markets ao as to discover the relation between investment return and time-varying risk.

对尖峰、厚尾、偏态的刻画有助于正确估计市场风险，本文将改进型Laplace分布引入到股票组合的风险管理中，实证结果发现，改进型Laplace分布和非对称Laplace分布对尖峰、厚尾的刻画效果接近；而非对称Laplace分布对负偏性考察不足，改进型Laplace分布的拟合结果能够准确地反映股指收益的负偏态，这也正是改进型Laplace分布相对于传统的非对称Laplace分布的优势所在。

This text is based on the song cycles Frauenliebe und Leben vocal art image analysis. image through its literature, music image, the image and sound aesthetic features in-depth analysis and mining, in a bid to truthfully, profound works ...更多 of art to display the image, and make better use of voice to depict this image This more accurate understanding and interpretation of the song cycles ,so as to realize the value of this work of art and charm.

全文立足于对声乐套曲《妇女的爱情与生活》的声乐艺术形象分析，希望通过对其文学形象、音乐形象、声音形象和审美特征等的深入分析和挖掘，力图真实地、深刻地展示作品的艺术形象，更好地用声音去描绘这一形象，更准确的把握和诠释这部声乐套曲，从而体现这部作品的艺术价值和魅力。

Then,I draw a map of that epoch and mark the location of each prince's feud.Then I depict the hegemony of the leud of Qi.

随后，我画了副春秋时代的地图，并标明各诸侯国的位置。

I have only set out to depict somebody I have met and, unlikely though it might seem, the result was Gilderoy Lockhart.

我想在作品中描绘一个以现实生活中的人为蓝本的角色。结果出人意料——这个人就是书中的吉德罗·洛哈特。

Most depict scenes from the king's favorite operas---especially "Lohengrin," the "Swan Knight."

多数绘画取材于国王最喜爱的歌剧场景，特別是"罗格恩林"，即"天鹅骑士"。

To depict something closer to economic reality at Berkshire than reported earnings, though, we employ the concept of "look-through" earnings.

在这里我们所谓的营业盈余系已扣除资本利得，特别会计调整与企业其它非常态的项目。

The dancer's costumes depict the variety of Canadian co lour tradition.

舞蹈演员的服装也体现了加拿大鲜艳多彩的传统。

His works depict the ghetto hutong for those in low-class poverty, as well as the villa symbolic of the rich.

但这个"凝视"不是弗洛伊德们的性别的凝视，而是在此之外"他者"的凝视。

They depict the suffering, marginality, victimization, alienation, and redemption of common people under modern conditions.

他们描述了现代状况下普通人的受难、边缘状态、受害、异化和救赎。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。