查询词典 chi square distribution

A new method is proposed to apply generalized chi square distribution to describe the asymmetrical distributions of noise correlation,and using generalized Gaussian distribution to describe the symmetrical distributions of noise correlation.

实验结果表明，该方法与仅采用一个广义高斯分布的方法相比，可以使鉴别错误率降低38%以上，可见利用不同的概率密度函数来描述相应的分布是减小鉴别错误率的一个有效途径。

In order to improve the validity of identifi cation of digital image origin and predetermine accurately threshold of identification,a new probability density function of generalized chi square distribution is constructed within0,1 for asymmetrical distribution of noise correlation.

为了提高鉴别数字图像来源的正确性，正确设置判别阈值，针对噪声相关性的非对称分布，在0，1区间构造了一个广义chi平方分布的新函数，并提出了一种利用广义chi平方分布来描述噪声相关性的非对称分布和利用广义高斯分布来描述噪声相关性的对称分布的新方法。

In this paper, we use Chi-square distribution instead of Gaussian distribution as the model of ASE noise.

本文提出用x平方律分布模型代替高斯信道模型，并将高性能的不规则重复累积码应用于远程光纤通信系统。

The results showed that the larvae in all orchards were in aggregation distribution pattern and fitted for negative binomial distribution tested by chi-square, which was due to the life habit of the larvae and environmental factors.

结果表明：桃蛀螟幼虫种群在板栗园中全部呈聚集分布，而且均符合负二项分布，其聚集原因是由该虫习性与环境因素共同造成的。

This course includes descriptive statistics, probability distribution, sampling distribution, statistical estimation, hypothesis testing, analysis of variance, chi-square tests, simple linear regression, multiple regression, and nonparametric statistics.

本课程内容包括叙述统计、机率分配、抽样分配、统计估计、统计假设检定、变异数分析、卡方检定、简单线性廻归、复廻归、无母数统计。

This study tried to understand the conditions, distribution and causes of landslides that happened after Chi-Chi earthquake on 21 September 1999 in the Yushan National Park.

本研究的目的，是为了调查九二一集集大地震后玉山国家公园内边坡崩塌的情形与分布状况，了解崩塌地发生的原因，以及环境变迁的情形与影响。

Lu Chi Cixi Sales of electronic equipment is Yuyao Lu Chi Electronic Equipment Factory under a sales agency, was founded in 2006, the company mainly produces computer strip machine, Terminal Crimping machines, copper strip connection machine, Computer pipe cutting machine, gas dynamic peeling machine, Air pressure bed Harness processing equipment, products widely used in the electronics industry, household electric appliances industry, Auto industry distribution, lighting industry, electric wire, cable, instrumentation industry, power tools, electrical appliances, electrical, toys, etc.

慈溪市陆驰电子设备销售部是余姚市陆驰电子设备厂下属一家销售机构，创立于2006年，公司主要生产电脑剥线机，端子压着机，铜带连接机，电脑切管机，气动剥皮机，空压压床等线束加工设备，产品广泛用于电子行业、家电行业、汽摩配行业、灯具行业、电线、电缆、仪器仪表行业、电动工具、电器、电机、玩具、等各类产品的线束加工。

It's been over two weeks since the cyclone that devestated the nation. On Saturday, Tzu Chi's relief team organized its second aid distribution. The site this time was the village of Nyaung Thon Bin, southeast of Yangon. And, this time, the sun came out. Tzu Chi volunteers distributed rice, beans, oil and salt to a total of 911 households.

两个礼拜前，风灾重创了缅甸，星期六，慈济赈灾团进行了第二波的发放，这次到了仰光东南方的鸟东宾村；这一次，太阳露出了脸，慈济志工发放了白米、印度红豆、油和盐，共帮助了911个家庭。

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。

Abnormal distribution is not rare in practical measurement. Beta distribution contains not only central distribution but also non-central distribution. It is a good method to simplify the research of practical measurement distribution.

为了解决实际测量中的非正态分布的表示问题，本文采用含有两个参数的Beta分布来统示表示多种类型分布，并且解决了该分布的参数、特征值的计算。

Finally it offers the analysis of the fault-tolerance system as well as its test verification.

这样，运行于空间环境中的系统的设计目标就是在保证系统实时性

However, it is still difficult to find out the real reason of the increase of the keratinized gingiva during the orthodontic extrusion whether it is due to the proliferation of the gingival tissue or to its elastic nature, that is because the proliferation of the fibroblasts as well as the connective tissue changes in volume and the intra-fibers spaces were all immeasurable in most of the studies.

然而，仍然难以找到真正的原因增加的角化牙龈在正畸挤压它是否是由于扩散的牙龈组织或其弹性性质，这是因为增殖的成纤维细胞以及作为结缔组织的变化量和内部纤维空格都是不可估量的，大多数的研究。