参数估计

This paper gives a detailed introduction of principle for three main estimation algorithms for point spread function, and also gives a comparison of the advantage and deficiency among these algorithms.

文中详细论述了三种主要的高斯型点扩展函数参数的估计算法的原理和实现，比较了各种算法的优点和不足之处。

So in the point estimation, the Bayesian estimation can have better precision.

第二，在进行区间估计的时候，贝叶斯学派可以说某个参数落入某个区间的概率，而这在经典学派是不允许的。

In this paper, We study the point estimation of linear failure rate model under censored life test.

盛炜该文研究了在定数截尾样本下线性失效率模型中参数的点估计问题。

A neural network is then used to represent the estimation of potentials,both the parameterized TD(0) learning formulas and algorithm are also derived for approximating the policy evaluation.By the approximation values of potentials and approximation policy iteration,a unified neuro-dynamic programming optimization approach is consequently proposed for both two criteria.

根据定义式，建立性能势在平均和折扣性能准则下统一的即时差分公式，并利用一个神经元网络来表示性能势的估计值，导出参数TD(0)学习公式和算法，进行逼近策略评估；然后，根据性能势的逼近值，通过逼近策略迭代来实现两种准则下统一的神经元动态规划(neuro-dynamic programming，NDP)优化方法。

A new algorithm based on the expectation-maximization method is proposed to obtain the maximum-likelihood estimation of the polynomial model parameters over the 2-D observed data.

在多项式模型的基础上，结合期望最大化方法的思想，提出了一种利用时频面上的二维数据来获取模型参数的最大似然估计值的算法。

For the first time, from mathematics approach, the prior probability distribution of risk analysis was derived by the use of POME in two cases that were discrete and continuous information source.

首次分离散信源和连续信源两种情况，从数学途径阐述了POME在确定风险分析先验概率分布中的应用，以确定几种常用分布及估计其参数为例加以了解释。

For the first time, based on POME, two weighted generalized distances were defined to build up two fuzzy, which used relative membership degree, and optimal models for evaluation of water environment, considering both the randomness and the fuzziness.

首次分离散信源和连续信源两种情况，从数学途径阐述了POME在确定风险分析先验概率分布中的应用，以确定几种常用分布及估计其参数为例加以了解释。

The standard error of a statistic provides an indication of how accurate an estimate it is of the population parameter.

统计量的标准误差表示该统计量作为总体参数的估计的准确程度。

It has been found that the MCMC approaches can estimate and derive the posterior joint probability distribution of the model parameters properly.

采用基于实测流量资料估计的置信区间可靠性作为评判标准，实验结果表明：就SMAR模型而言，MCMC方法能够更好地推求模型参数的后验分布。

By means of the comparison principle and the method of upper and lower solution,the corresponding sufficient conditions under which the models have a solution or no solution are obtained. If other parameters are given,the controllable parameters such as the population of release and the times of impulsive harvest are estimated respectively.

基于比较定理和上下解方法，分别获得了模型有解或无解的充分条件，估计了相关可控参数，即脉冲投放模型中的投放量以及脉冲收获模型中的脉冲收获次数。

But we don't care about Battlegrounds.

但我们并不在乎沙场中的显露。

Ah! don't mention it, the butcher's shop is a horror.

啊！不用提了。提到肉，真是糟透了。