后者既包括基于广义帕雷托分布(GPD)参数的极大似然估计,又包括矩法估计等。
The latter since include maximum likelihood estimate of the GPD(generalized Pareto distribution ) model parameters to still include moment estimate etc.
在历史洪水存在不确定性情况下,以概率权重矩法估计的参数稳健性优于优化适线法。
Moreover, under the situation of uncertainties in large historical flood, the quantities estimated by probability weighted moments may be more robust than those by a optimal curve fitting method.
本文引进了局部分布、局部矩、局部矩法估计、样本局部矩和局部分布的矩确定等概念。
In this paper, some new concepts on the local moment, local distribution and the method of the local moment estimation are proposed.
目前常用矩法估计瞬时单位线,据此还原的洪水过程与实测洪水过程之间,特别是洪峰点之间,常具有明显的差别。
The difference is obvious between the computed flood hydrograph according to the traditional method and observed flood hydrograph, especially flood peak.
通过对正态的名义变量的等级量化,用矩估计法给出了一个计算多系列相关系数的一般公式。
The present paper presents a general formula of calculating multiple-series relevant coefficient with the method of matric estimation through evaluation of the nominal variables.
最后,用两个数字实例对矩估计法和非线性最小平方估计法加以具体的说明。
Finally, two numerical examples are given to illustrate the methods of moments estimation and the nonlinear least squares estimation.
本文基于渐近波形估计(AWE)技术和矩量法(MOM)快速预测无限大导体平面上任意形状凹槽的散射场方向性函数。
The method of moments (MOM) combining with the asymptotic waveform evaluation (AWE) technique is used to predict scattering fields of an arbitrarily shaped groove in a perfectly conducting plane.
最大似然法采用了迭代的方法来估计噪声的协方差矩。
The estimation of noise covariance matrix is based on iterative procedure in ML.
在此基础上提出一种基于线性矩法的熵估计方法(POMELM)。
A new parameter estimation method (POMELM) based on POME and L-moment is proposed in the thesis.
对其中的参数分别用极大似然法和改进的矩法进行了估计。
The distribution parameters have been estimated with either the maximum likelihood method or a modified moment method.
计算结果表明渐近波形估计技术与矩量法结合可以逼近矩量法逐点计算的结果,且计算效率大大提高。
The numerical results are in good agreement with the results achieved by the method of moments at each frequency or any incident angle, while the computational efficiency is considerably improved.
通过假想水文资料检验这一方法,并与矩法的估计值相比较,结果表明本文提出的方法优于矩法。
The verification using ideal hydrographic data shows that the proposed method is better than the moment method.
计算结果表明:渐近波形估计技术不但能准确地逼近矩量法的精确数值解,还可以较快的提高计算速度,但在加速计算导体宽角度与宽频域雷达散射截面时具有不同的效果。
The computation results indicate that the AWE technique not only can well approximate the exact numerical solution, but also improve the velocity of calculation and save the calculation time of CPU.
本文重点讨论了广义矩估计法、马尔可夫链蒙特卡罗方法和有效矩估计法这三种各具特点的随机波动模型的参数估计方法。
In this article, three estimation methods, GMM, MCMC and EMM are studied. GMM is one of the earliest methods used in SV model and its character is simple;
本文重点讨论了广义矩估计法、马尔可夫链蒙特卡罗方法和有效矩估计法这三种各具特点的随机波动模型的参数估计方法。
In this article, three estimation methods, GMM, MCMC and EMM are studied. GMM is one of the earliest methods used in SV model and its character is simple;
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