近似方法

Finishing calculation of mean value, standard deviation, skewness, kurtosis of Beta distribution.(2) Fitting parameters of many kinds of typical distribution and using residual deviation to evaluate fitting precision.(3) Using Beta distribution as an agreed indication distribution applied to many kinds of practical photoelectric measurement distributions.(4) Deriving theory formula of Bayes point estimation about Beta distribution parameters and mean value and standard deviation on the condition of mean square error loss function and supposed the prior distribution is uniform distribution.(5) Generating MCMC sample from post distribution by the method of Gibbs sample algorithm. Calculating bayes point estimation from sample on the condition of mean square error loss function. Calculating confidence interval by an approximate method to complete interval estimation.

本文的主要工作有：(1)解决了Beta分布参数a和b的精确计算以及均值、标准差、偏度、峰度的计算问题；(2)拟合出10余种典型分布的Beta分布的两个参数，并且采用剩余标准差评价该Beta分布的拟合精度；(3)对多种典型的光学与光电测量系统的测量分布进行了Beta分布统示表示；(4)在假设先验分布为均匀分布前提下，得到参数a和b以及均值μ和标准差σ在均方误差损失函数下的贝叶斯点估计理论计算公式；(5)利用直接抽样的Gibbs抽样算法，从后验分布中产生MCMC样本，从样本直接计算均方误差损失函数下的贝叶斯点估计，并使用一种近似方法计算其置信区间，完成区间估计。

Let's try out the best approximation then: a plane.

让我们来试试比较好的近似方法：一个平面。

A new way of calculating bond energy is proposed proceeding from LCAO-MO.

从LCAO-MO出发，给出了一个计算键能的近似方法，即EAB-∑∑CaiSabCbiεi为第i个占据分子轨道中的一对电子对A-B键键能的贡献。

So the absolute differential cross sections of e-Ar scattering are calculated with some different potential models by applying the Second-order Born approximation theory, respectively.

接下来，利用二阶玻恩近似方法，计算了不同原子势模型下激光场中电子被氩原子散射的散射截面并与相关实验进行了比较。

Developed in 1990's, the distorted wave Born approximation methodwhich deal with the problem of three bodies of interaction in the collision betweenelectron and atom provide the theoretical criterion to calculate the tripledifferential cross section of the (e,2e) reaction.

二十世纪九十年代发展起来的处理电子—原子碰撞三体相互作用问题的畸变波玻恩近似方法，为计算原子的(e，2e)反应的三重微分截面提供了理论标准。

Using some metrics as integer, a good path which guarantees delay, delay jitter and buffer can be found in polynomial time complexity.

用整数化的近似方法，可在多项式时间内找到保证延迟、延迟抖动、缓存空间的较优路径。

In the first part, an ideal non-noise spatio-temporal series (33 modes Lorenz system) is used as a generator for chaotic spatio-temporal series in comparison and sensitive tests with the field time series analysis method.

在第一部分中，以一个"理想"的混沌时空序列即33模Lorenz系统，作为时空混沌序列的"发生器"，通过状态空间重构，利用场时间序列的局域近似方法建立预测模型，进行对比试验和敏感性试验。

This is a unique and interesting way of looking at the planning of logistics systems using Logistics Cost Functions and continuous approximation methods.

这本书使用运筹成本函数与连续近似方法来规划运筹系统的方式，可谓独特且有趣。

The stream data have the features of realtime, continuousness, orderliness and infinity, whose duplicates are detected generally by approximate methods which omission often exists.

流数据具有实时、连续、有序及无限等特点，一般使用近似方法检测重复，从而存在漏检等缺点。

In general, stochastic approximation is guaranteed to converge.

在一般的情况下，随机近似方法的收敛效果是受到肯定的。

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。