查询词典 likelihood method

Also, it is deduced from the conclusions of maximum likelihood estimator that the performance of estimators is independent on source number if the number of snapshots used in estimator is large enough.

证明了它们在低信噪比情况下仍具有渐近无偏的估计性能；另外，利用最大似然估计器的相关结论，证明了在快拍数足够大的情况下，估计器的估计性能与信源数目的多少无关。

The empirical approximation methods can be applied to study uniform consistency, robustness, strong consistency of the maximum likelihood estimator of statistical estimators.

本文采用的经验逼近方法可应用于研究随机规划统计估计问题的一致相合性、稳健性、极大似然估计的强相合性。

The maximum likelihood estimator approach is an important one in frequency estimation domain. This approach has the merit such as exhibiting best performance and requiring minimum threshold of signal noise ratio in calculation.

最大似然频率估计法是该领域中的一种重要的研究方法；该方法具有估计结果准确，计算所要求的信噪比门限值低等特点。

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。

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。

With regard to the estimation of the variance components, many statisticians proposed a number of approaches, such as the Analysis of Variance Estimator, Maximum Likelihood Estimator, Restricted MLE, and the Minimum Norm Quadratic Unbiased Estimator, etc.

关于方差分量的估计统计学家们提出了许多方法，如方差分析估计，极大似然估计，限制极大似然估计，最小范数二次无偏估计等。

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。

In this case, the received carrier is modulated by unknown Doppler frequency and frequency rate. The estimation techniques as maximum likelihood estimator and extended Kalman filter are described and compared in our dissertation by tracking a common simulated highdynamic trajectory.

文中详细推导了任意信噪比情况下，时延和多普勒频率估计的方差下限表达式：在信噪比高于门限信噪比的情况下，具体推导了估计方差的Cramer-Rao限；在信噪比低于门限信噪比时，估计的方差下限还与失锁概率有关。

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。

A model and an algorithm were provided for constructing phylogenetic tree based on the principle of maximum likelihood estimate.

利用最大似然估计原理，给出了构建系统发生树的模型和算法。

"The operators will suffer a temporary decrease in the number of consumers and short message services as people may not like having to provide their ID cards for a phone number," Xu Junqi, vice-dean with the Policy-Making Institute of the Telecommunications Research Centre under MII, said yesterday.

信息产业部下属的通信决策研究院副主任徐俊其昨天说：&实行手机实名制后，人们可能不太情愿用身份证注册手机号，所以通信运营商会暂时面临用户减少和短信用户减少的问题。&

I don't believe in make-believe!

我不相信这些虚构的故事。