概率密度

矢量GIS空间随机线元等概率密度误差模型

The equivalent probability density error model of 3D random linear segment in vector GIS

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

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 .

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 ) .

AR模型、混合高斯模型分别可以很好地拟合样本的功率谱和概率密度。

The PSD and PDF of sample series can be well fit with the AR model and Gaussian mixture model respectively .

不同于参数估计的方法，一旦确定了跟踪目标，MeanShift方法不需其他的额外输入，而且该方法有计算概率密度梯度的功能。

Different from parametric estimation , Mean shift does not need any other parameters once the target is defined . And it also can compute the gradient of probability distribution .

指出了X~2（n）密度函数的极大值的性质，及不同参数所对应的概率密度曲线之间的关系。

Points out the properties of maximum value of X ~ 2 distributed density function , and the relation of different X ~ 2 distributed density function according to different parameters .

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 ) .

而在各高斯分量概率密度互不重叠的条件下，使用动态簇算法（DC）则可快速而精确地估计出混合高斯模型参数。

And if there are no overlaps between each Gaussian component , parameters of Gaussian mixture PDF model can be exact estimated quickly with the dynamic cluster algorithm ( DC ) .

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 .

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 .

对提取的特征用BEM算法学习该类样本的概率密度分布参数，构建贝叶斯混合网络分类器。

BEM algorithm learns the parameters of condition probability function of class features . A Bayes classifier is constructed to recognize face .

依据Gamma函数及Γ（x）分布的基本概念，给出了非均质性储层渗透率K的概率密度、分布函数以及基本数字特征的表达式。

According to the basic concept of Gamma function and Γ( x ) distribution , this paper gives out some expression including probability density , distribution function and basic numeric characteristic value .

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 .

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 .

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 .

证明采用高斯核的一类SVM，其解可以归一化为密度函数，并把该密度函数看作类条件概率密度的平滑估计，构造贝叶斯分类器。

It is proven that the solution of one-class SVM using the Gaussian kernel can be normalized as an estimate of probability density , and can be used to obtain the Bayesian classifier .

该文提出了一种新的用似然值概率密度演变来为高斯信道下的速率可变穿刺Turbo码（RCPT）选择最优穿刺矩阵的方法。

A new algorithm for searching the optimal puncture matrices of the rate compatible punctured Turbo ( RCPT ) codes is proposed .

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 .

通过与MonteCarlo随机模拟结果相比较，说明了求解时间上平均的概率密度的路径积分法的有效性，实现了该系统的双火山口形概率密度的计算；

We carry out the probability density averaged in time and contrast with the result by Monte Carlo simulation . The method is efficient to obtain double crater like probability density of the system .

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 .

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 .

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 .

本文通过利用混合高斯模型，给出了估计概率密度函数的EM算法，在此基础上利用高斯混合模型法获得了对分离矩阵的梯度学习算法。

By using the Gaussian mixture model , an EM algorithm for approximating the probability density of the data is presented , and a stochastic gradient method is given to separate the independent components .

在故障诊断信息的基础上，提出了一种PI跟踪加故障补偿项的容错控制策略，使得系统输出概率密度函数仍能够跟踪给定的分布。

Finally , based on the fault diagnosis information , a new fault tolerant control based on PI tracking strategy control scheme is designed to make the post-fault probability density function still track the given distribution .

首次理论推导了MMSE检测的输出信噪比的概率密度函数，应用其分析检测性能和系统容量。

We firstly derive the probability density function of the output SNR for MMSE detection , which is used to analyze the performance and capacity after the different detections .

论文给出了接收信号包络的概率密度函数，同时也给出了两个高阶统计量：电平通过率（LCR）和平均衰落时间（ADF）。

The paper gives the probability density function of the envelope of received signal and the approximate expressions of Level-Crossing Rate and Average Duration Fades .

还有，我们特别引入Laplace分布和对数Laplace分布，根据其概率密度函数，作了一些更为深入的研究，丰富了椭圆分布和TCE的领域。

In particular , the Laplace and log-Laplace distributions are inducted . According their functions of density of probability , some researchs are spreaded . They enrich the scopes of TCE .

本文对标量场的各向异性、标量和标量耗散率的概率密度函数（PDF）、标量场的空间结构及演化过程、还有标量小尺度混合模型等几个方面进行综述。

This paper gives a review of the recent developments , including the anisotropy of passive scalar field , PDF of scalar and scalar dissipation , dynamics of small-scale structure and scalar mixing model etc.