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In reliability testing, weibull distribution is widely used to analyze the lifetime of electronic products. Weibull Probability Plot and Maximum Likelihood Estimator were often applied to estimate the weibull parameters.

在可靠度试验中，韦伯分配为最常用的产品寿命分配，韦伯机率纸和最大概似估计法是韦伯分配常用的两种参数估计方法。

Also in the paper,we get the point estimator of unknown parameters by using the maximum likelihood estimator method and simulated moment estimator method based on the censored sample.

给出了其寿命分布函数步进形式，在截尾样本场合利用极大似然估计方法和拟矩估计方法求出了未知参数的点估计，最后利用计算机模拟考察了说明本文方法的可行性。

Using the characteristic found,the maximum likelihood estimators and the moment estimator s of parameters of the multivariate exponential distribution of Freund are obtained.

利用分布密度分拆的思想，导出了二元及多元Freund型指数分布的一个特征，利用该特征，获得了二元及多元Freund型指数分布参数的最大似然估计及矩估计，还给出了强度服从二元Fre-und型指数分布时并联结构系统的可靠度估计及模拟。

Analysis implies that when a different weighting matrix is used in the R-WSF method, the criterion function of the R-WSF method is asymptotically equivalent to that of the determinate maximum likelihood estimator and the classical WSF method, respectively.

理论分析表明，当加权矩阵取不同的值时，R-WSF方法的代价函数可以分别渐近地等效于确定性最大似然法和常规WSF方法的代价函数。

Three aspects of work are considered: The first aspect: we considered the error bound of the maximum likelihood estimation estimator for a class of nonstationary diffusion processes with parameters in both drift and diffusion parts.

论文的主要内容由以下三个部分组成：第一部分：我们考虑一类非平稳扩散过程参数极大似然估计的误差界。

Using the estimation of marginal and joint statistical distribution of Contourlet coefficients via the method of maximum likelihood estimator, multiplicative watermarking and blind detection framework is presented in the Wavelet transformation domain and the Contourlet transformation domain.

采用极大似然估计的方法对Wavelet变换和Contourlet变换系数的边缘分布和联合分布进行拟合，提出了一种Wavelet变换域和Contourlet变换域乘嵌入水印及盲检测框架。

A mean of squared differences image correlation/Kalman filtering motion estimator is analyzed deeply, proving its efficiency and unlbias, and equivalent to maximum likelihood estimator.

对实际中一种常用的均方差图像相关/Kalman滤波位移估值算法进行了深入分析，证明了该算法的有效性和无偏性，并等价于极大似然估值。

An approach to combine the maximum likelihood method with the genetic algorithm is proposed.

提出了极大似然法和遗传算法结合的一种方法。

The second goal is the estimation method of maximum likelihood .

第二个目标是最大似然的估计方法。

Parameters of the model are measured by a linear regression technique and a maximum likelihood method.

在因子范围服从对数正态分布下，应用线性回归技术和极大似然法建立了模型参数的测定方法。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。