查询词典 beta distribution

Finishing calculation of mean value, standard deviation, skewness, kurtosis of Beta distribution.(2) Fitting parameters of many kinds of typical distribution and using residual deviation to evaluate fitting precision.(3) Using Beta distribution as an agreed indication distribution applied to many kinds of practical photoelectric measurement distributions.(4) Deriving theory formula of Bayes point estimation about Beta distribution parameters and mean value and standard deviation on the condition of mean square error loss function and supposed the prior distribution is uniform distribution.(5) Generating MCMC sample from post distribution by the method of Gibbs sample algorithm. Calculating bayes point estimation from sample on the condition of mean square error loss function. Calculating confidence interval by an approximate method to complete interval estimation.

本文的主要工作有：(1)解决了Beta分布参数a和b的精确计算以及均值、标准差、偏度、峰度的计算问题；(2)拟合出10余种典型分布的Beta分布的两个参数，并且采用剩余标准差评价该Beta分布的拟合精度；(3)对多种典型的光学与光电测量系统的测量分布进行了Beta分布统示表示；(4)在假设先验分布为均匀分布前提下，得到参数a和b以及均值μ和标准差σ在均方误差损失函数下的贝叶斯点估计理论计算公式；(5)利用直接抽样的Gibbs抽样算法，从后验分布中产生MCMC样本，从样本直接计算均方误差损失函数下的贝叶斯点估计，并使用一种近似方法计算其置信区间，完成区间估计。

Simplex distribution is more extensive than the Beta distribution in the value (0,1) between the distribution, using it to the proportion of data, in theory or in the application are of great significance.

单形分布是比 Beta 分布更广泛的取值在(0，1)之间的分布，用它来分析比例数据无论在理论上还是在应用上都有重要意义。

Since the Dirichlet distribution is the conjugate prior of the multinomial distribution, the beta distribution is the conjugate prior of the binomial distribution.

自的Dirichlet分布是共轭先验的多项分布， Beta分布是共轭先验的二项分布。

A Bayes method of reliability evaluation for fuzes is put forward based on mixed beta distribution as the prior distribution,which solves the problem of data fusion between simulation and field test.

以混合Beta分布为先验分布，得到了评估引信可靠性的Bayes方法，该法解决了模拟试验数据与靶试数据融合问题。

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。

So Beta distribution could be used as a unified distribution to denote practical optical measurement distribution. Solving the problem of calculating Beta distribution parameters and characteristic value.

在光学测量领域做了大量实验统计工作的基础上，用Beta分布表示实际测量工作中遇到的多种非正态分布，验证了Beta分布统示表示实际测量分布的方法可行。

They are common optical measurement and their distributions are obtained from the large sample data. Beta distribution is used as a unified distribution to simplify the research of optical measurement distribution.

通过对光学测量中常见的叉线对准以及焦距、曲率半径测量进行大样本数据采集和分析处理，利用实验方法得到常见光学测量数据的分布，并选择Beta分布统示表示多种分布，简化了光学测量中的分布研究。

It assumes survival time follow exponential distribution and quality of life initial value follow beta distribution. In order to correlate present quality of life with former quality of life, each quality of life were evaluations generated from AR(1) model. In addition, we set parameters of AR(1) model between 0 and 1, calculates expected QAST from different parameter combinations.

假设存活时间服从指数分布、生活品质初始值服从Beta分布，并利用时间序列一阶自我回归过程First-Order Autoregression Process， AR(1的模型产生各次生活品质评量值，使当次的生活品质与前一次的生活品质产生相关性，并将AR(1)模型中的参数设定为介於0与1之间的值，且产生不同的组合。

Beta distribution ; significant wave height ; logarithm-Beta distribution ; nonlinear

Beta分布；有效波高；对数-Beta分布；非线性

The main purpose of the thesis is choosing the more superior distribution among normal distribution, logarithmic normal distribution, weibull distribution, beta distribution and gamma distribution when they are used for fitting and forecasting ten main trees diameter distribution of natural secondary forest in baotianman on basis of analyzing and comparing the data from the 32 plots of natural secondary forest in baotianman.

以宝天曼天然次生林32块样地的调查数据为依据，分别以正态分布、对数正态分布，Weibull分布，Beta分布，Gamma分布拟合及预测宝天曼自然保护区天然次生林10种主要乔木树种直径分布，并对其适用性进行分析、比较，选出最适合于拟合及预测该林分直径结构的分布。

Graf, without question, is the greatest women's player in history.

格拉芙，现在，毫无疑问是女子网坛历史上最伟大的选手。

If not, you will have to look around at all your important data.

如果没有，您将需要检查所有的重要数据。