贝叶斯

Born in London 1702, the son of a minister, Thomas Bayes developed a formula which allowed him to determine the probability of an event occurring based on the probabilities of two or more independent evidentiary events.

生于1702年的伦敦，一名部长的儿子，托马斯贝叶斯公式，使他形成了以确定一个事件发生的概率基于两个或两个以上的独立概率事件的证据。

In order to avoid that a small amount of field test information would be obliterated by a large amount of prior information,a Bayesian method with mixed Beta distribution was used.

为避免少量的现场试验信息被大量的先验信息淹没，使用了以混合贝塔分布为先验分布的贝叶斯方法。

Methods According to the Bayesian conjugate prior distribution principle, the estimating methods of prior parameters of the conjugate beta distribution Be of the binomial distribution was given by writing the SAS programs.

根据贝叶斯共轭先验分布原理，对二项分布的共轭贝塔分布中的α、β两个先验参数的确定方法进行分析比较，编写SAS程序确定先验参数。

Therefore a new spatial adaptive wavelet thresholding method is presented, which is based on a non-Gaussian bivariate distribution and context modeling for image denoising that is inspired by image coding.

为了更好地进行MR 图像分割处理，本文提出了一种新的空间自适应小波阀值去噪算法，该算法是基于非高斯二元分布的贝叶斯统计模型和上下文模型。

Bayes was one of two main influences on the early development of probability theory and statistics. The other was Blaise Pascal, a Frenchman.

对早期概率论和统计学发展具有重大影响的有两位科学家，贝叶斯是其中一位，另一位是法国的布雷泽·帕斯卡。

A new non-linear quadratic programming Bayesian prestack three-terms inversion method is developed; Firstly, this method is based on Bayesian parameter estimation theory, Gaussian distribution is used for likelihood function and modified Cauchy distribution is used for prior distribution; Secondly, covariance matrix is used to describe the degree of correlation between the parameters; rock physics relations are used to constrain the inversion results; at last, this method is transformed into non-linear quadratic programming problem, and inversion results are acquired under several constraints.

本文提出了一种基于非线性二次规划的叠前三参数反演方法。首先基于贝叶斯参数估计理论，假设似然函数服从高斯分布，并使待反演的参数服从于改进的Cauchy分布，从而提高了反演结果的分辨率；其次用协方差矩阵来描述参数间的相关程度，进一步提高了反演结果的稳定性；最后将问题转化为一个非线性二次规划的求解问题，并在多种约束下得到问题的解。

Range image segmentation ; Gaussian mixture model ; EM algorithm ; Bayes factor

距离图像分割；高斯混合模型； EM算法；贝叶斯因子

A Matlab procedures, the known variance of the Gaussian distribution of the mean Bayesian learning methods.

一个matlab程序，有关已知方差的高斯分布的均值贝叶斯学习方法。

The result of analyzing the base content revealed that only the sequences from Buxus bobinieri have GC bias, especially at the third base of codes, and the GC content is more than 70%. All of molecular phylogenetic trees, based on the Beyesian, MP, and NJ methods, consisted of three major clades. Four sequences from Ceratophyllum demersum were grouped into a monophyletic clade (subfamily Ⅱ). Two sequences out of Trochodendron aralioides nested in subfamily Ⅲ. Another three sequences from Kingdonia uniflora interspersed among different subclades of subfamily Ⅰ.

用贝叶斯法、最大简约法和邻接法构建的CHS基因的分子系统树均由3个主要分支构成，其中一个分支由来自金鱼藻的4个序列聚在一起构成了subfamily Ⅱ，来自昆栏树的2个序列聚在一起网接于subfamily Ⅲ中；来自独叶草的3个序列分散于同一亚家族(subfamily Ⅰ)的不同分支中；而多数种的序列分散在相距较远的两个分支中，构成了两个主要的亚家族subfamily Ⅰ、subfamily Ⅲ。

A hybrid inversion scheme for estimating surface variables of vegetation is proposed under Bayesian Network theory,and then is used to estimate chlorophyll content of winter wheat leaves and Leaf Area Index of canopy.

基于贝叶斯网络理论，建立用于植被地表参数估计的混合反演模式，结合遥感物理模型实现了冬小麦叶片叶绿素含量和冠层叶面积指数的反演。

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。