概率密度函数

一种基于概率密度函数的IP网包乱序行为评价指标

An evaluation metrics of packet reordering in Internet Based on Probability Density Function

在取没有验前知识的共轭型验前分布时，可得hm的边缘验后概率密度函数。

The marginal posterior probability density function for hm is obtained when the conjugated type prior distribution without prior knowledge is assumed .

它依赖于您对度量值的概率密度函数（probabilitydensityfunction，PDF）的认识。

Well , it depends on what you know about the measurements'probability density function ( PDF ) .

基于EM算法的因子分析中隐变量的条件概率密度函数

Conditional PDF of Hidden Variable for Factor Analysis Based on EM Algorithm

概率密度函数对双随机PWM变换器EMI特性影响研究

Effects on the EMI Performance a Dual Randomized Modulation with Different Probability Laws

多项式中的未定系数与概率密度函数中的分布参数可由应力随机变量的前n阶矩确定。

The undetermined parameters of the polynomial and the probability density function can be determined by the first n moments of the stress variable .

VaR计算的核心在于估计投资组合未来回报率的统计分布或概率密度函数。

The core of VaR method is estimation for statistical distributions of portfolio future returns .

获得了S0和S1的soonerwaitingtime和laterwaitingtime的概率密度函数和概率母函数。

The probability functions and the probability generating functions of the sooner and later waiting time between pattern S0 and pattern S1 are obtained .

在已有信任模型的基础上，提出了基于β概率密度函数的可信Web服务评估模型，并介绍了该模型具体的实现方法。

On the basis of existing trust model , we present a trusted web services model based on β probability density function , and introduced the specific implementation method of the model .

本文提出了顺序随机变量的概念，并求出了X（k）的概率密度函数。

This paper presents the concept of order random variable for the first time , and obtains the probability density function of X ( k ) .

应力、强度概率密度函数不确定，用Monte-Carlo法。

If probability density functions of stress and strength are not definite , Monte Carlo method is adopted .

NOx预测模型中，包含了热力型NOx、瞬发型NOx和燃料型NOx的形成，并采用概率密度函数（PDF）方法进行计算。

In NOx estimating model , thermal NOx formation , prompt NOx formation and fuel NOx formation have been calculated by probability density function ( PDF ) .

一个二元Walsh特征函数是相同于概率密度函数的二重Walsh变换。

A two-variable Walsh characteristic function is identical to the double-Walsh transform of the probability density function .

下面这个动画表示了，数1s轨道的概率密度函数。

This cartoon shows the probability density function of1s .

用Laplace变换法有效地解决了复杂约束条件下概率密度函数的积分问题，并给出体系中层数较少时极限分布的表达式。

The Laplace transform method is found as an effective method to solve the integral issue of probability density under complex constraint .

在以链路延时为节点状态，以延时的概率密度函数为状态信息的QoS路由，这个假设尤其重要。没有这个假设，端到端路径延时的概率密度函数的计算是NP-Hard问题。

This assumption is extremely important when link-delay PDF is used as state information because the calculation of path-delay PDF is NP-Hard without it .

这一假设为以延时为约束条件的路由问题，特别是以节点延时的概率密度函数为状态信息的QoS路由问题提供了一种较为实际的处理手段。

Node-State independence assumption can provide a more tractable solution to delay constrained routing , especially when state information is Probability Density Function ( PDF ) of delay at each node .

本文给出了湍流燃烧概率密度函数的输运方程，扼要地介绍了目前应用较多的随机过程模型，以及求解概率密度函数方程的MonteCarlo算法。

In this paper the evolution equations for pdf of turbulent combustion arc derived . Some common stochastic models and Monte Carlo algorithm for solving the pdf equations are introduced .

目前流行的湍流扩散燃烧模型有概率密度函数输运方程模拟（PDF）、条件矩模拟（CMC）、层流小火焰模型等。

At present the popular turbulent diffusion combustion models include Probability Density Function ( PDF ), Conditional Moment Closure ( CMC ) and so on .

速度场采用κ-ε模型计算，守恒标量混合物分数的分布通过其概率密度函数（PDF）输运方程的求解得到。

The velocity field is calculated by using k ? e turbulence model and the conserved scalar mixture fraction is computed from its PDF transport equation .

而投影距离E（R）的获取是在选择好有效中间节点域后，通过计算有效中间节点域的PDF（概率密度函数）来得到的。

The distribution of effective intermediate nodes domains PDF ( probability density function ) to the projection distance of E ( R ), select the domain of valid intermediate nodes , compute nodes .

基于Flamelet理论的概率密度函数的数值计算

Calculation of probability density function based on Flamelet theory

在频域利用VONMISES应力对结构进行多轴疲劳分析的前提是必须获得VONMISES应力过程中应力循环的概率密度函数。

The precondition of structure multiaxial fatigue analysis in frequency domain with Von Mises stress is to obtain its peak probability density function .

这些参数的变异性将通过Freeze提出的多变量概率密度函数来建立模型，通过Monte-Carlo技术对土的动力特性进行研究。

The variation of the parameters is modeled by multivariate probability density function proposed by Freeze , and the dynamic characteristics of soil are studied by Monte Carlo technique .

提出概率密度函数法（Probabilitydensityfunction，PDF）研究重构吸引子的结构，PDF包含了重构吸引子相点空间分布的重要信息。

Probability density function ( PDF ) method is proposed for analysing the structure of the reconstructed attractor in carrent study . PDF contains important information about the spatial distribution of the phase points in the reconstructed attractor .

推导了基于NASA标准解体模型的碎片分离速度概率密度函数，建立了计算航天器与单颗碎片碰撞概率的时间积分算法。

Space debris delta-velocity probability density function was deduced by NASA 's standard breakup model , and time integral algorithm of collision probability between spacecraft and any debris was built .

由于对数正态分布概率密度函数能够更好地描述ST系数的分布情况，所以采用对数正态分布模型拟合ST系数的似然比概率。

Because the logarithmic normal distribution probability density function can better describe the distribution of the ST coefficients . The logarithmic normal distribution model is used for fitting the likelihood ratio probability of the ST coefficients .

该类算法都以测度概率密度函数的Kullback-Leibler距离作为目标函数，用来衡量源信号各分量的独立性。

These algorithms are based on minimizing a contrast function defined in terms of the Kullback-Leibler distance .

为获得钢筋混凝土（RC）材料性能在氯离子侵蚀作用下的衰退规律，研究了RC构件中钢筋锈蚀率（SCR）的概率密度函数（PDF）随时间演进的过程。

The probability density function ( PDF ) of steel corrosion ratio ( SCR ) evolving with service time ( ST ) was simulated to study the performance degradation of chloride-ingress RC member .

基于峰度的盲源分离开关算法无需假设源信号的概率密度函数，可直接对独立分量分析（ICA）中的激活函数进行自适应学习。

Switching algorithm of blind source separation based on kurtosis is used to adaptively learn activation function of the independent component analysis ( ICA ) without assuming the PDF of sources .