拉普拉斯分布

词组短语

Laplace distribution

与拉普拉斯分布相关的网络例句 [注：此内容来源于网络，仅供参考]

The paper focuses on the multivariate Laplacian distribution. Based on MLD, we have obtained the variance of the quadric form, the covariance of two quadric forms and the covariance of the linear function and the quadric form.

对于多元拉普拉斯分布，我们推导出了多元拉普拉斯分布的二次型的方差，两个二次型的协方差，线性函数与二次型的协方差。

In this paper, we studied the robust estimation and the multivariate Laplace distribution which is closely related with the robust estimation.

本文主要研究了稳健估计及与之密切相关的多元拉普拉斯分布。

This function generates random numbers distributed according to the Laplace distribution

这个程序根据拉普拉斯分布生成了随机的数字。

Through the improvement of the existing model,the Gaussian distribution of the residual error is supplanted by the Laplace distribution in order to approach the real distribution.

通过对已有模型进行改进，用拉普拉斯分布代替插值点残留误差的正态分布，使分布情况更符合实际。

Second, when the error distribution of the model is the Laplace distribution, the L1 estimation of 1-D location estimation is essentially the sample median, hence the study of the Laplace distribution is also important.

第二，由于当模型的误差分布是拉普拉斯分布时，一元位置的最小一乘估计是样本中值，因此对于拉普拉斯分布的研究也是至关重要的。

However, asymmetric Laplace distribution has only 2 parameters and explicit distribution function form, it can fit the data of stock returns well. Consequently it greatly facilitates the calculation of optimal portfolios and the management of financial risk.

非对称拉普拉斯分布有明确的解析表达分布函数，只含有2个参数，能够较好拟合股票收益率分布的尖峰厚尾偏倚特性，给进一步的研究证券投资组合和金融风险管理带来了很大的便利。

Based on the method of restoring the image by estimating the camera shake trace which is proposed by Fergus in 2006 as reference, we find the difference of statistical characteristics between blurred images and latent images by exploiting the natural image statistical characteristics more deeply, i.e. the precise components of natural clear images obey the Laplace distribution in their wavelet domain, but blurred images dont have this kind of characteristic.

本文参考了2006年Fergus提出的估计相机抖动轨迹进行复原的方法，通过进一步对自然图像统计特性的研究，寻找出模糊图像和清晰图像在统计特性上的差异，即清晰图像的小波域细节分量服从拉普拉斯分布，而模糊图像则不具有这种特性。

The nonlinearity and discrete gradient inherited in CAViaR model is a conundrum for parameter estimation. We take the asymmetric Laplace distribution with scale parameter as the error process; indicate the variance has a minimum positive value when the scale parameter is a constant, conflicting with the distribution of real financial data. Further we estimate the parameters of indirect TARCH-CAViaR model base on Bayesian framework and Markov chain Monte Carlo method. The optimal scale parameter can also be obtained by Markov chain Monte Carlo method.

CAViaR一般模型中递归分位回归方程的非线性和非连续可微性是参数估计的一个难题，基于含有尺度参数的不对称拉普拉斯分布作为误差过程，指出将尺度参数固定为常数会导致不对称拉普拉斯分布随机变量的方差存在最小正值的限制，与实际金融数据分布不符；进而提出采用贝叶斯分析和马尔科夫链蒙特卡罗模拟方法，估计间接TARCH-CAViaR模型的参数，并可获得尺度参数的合理估计。

This thesis mainly discuss following issues, Theory and simple expressions for array covariance matrixes are derived when angular spread functions are symmetric distribution functions, i. e. the Uniform distribution, the Gauss distribution, the Laplace distribution and the Von Mises distribution, and a non-symmetric distribution function, i. e. the Gamma distribution. And the relation between the effective signal subspace and the array number, or and the nominal angle of the distributed source, the angular spread, the distributed functions, and the Signal-to-Noise Ratio is gained. The dimension of the effective signal subspace increases with increment of the array number. And it is more obvious to the non-symmetric distribution. The dimension of the effective signal subspace decreases with increment of the nominal angle. And the distributed source is equal to a point source as θ=π/2. The dimension of the effective signal subspace increases with increment of the angular spread.

本论文针对阵列信号处理中广泛存在的分布源现象，主要讨论了以下问题：推导了角度分布函数分别为对称的均匀分布、高斯分布、拉普拉斯分布、Von Mises分布和非对称的伽马分布时，分布源阵列接收信号协方差阵的严格模型和简化模型，得到了单个分布源的有效信号子空间随阵元数、分布源中心角、分布角、角度分布函数和信噪比的变化规律：随着阵元数的增加，对所有角度分布函数的有效信号子空间维数也随着增加，且非对称分布函数的有效信号子空间充满整个空间的可能性更大；随着分布源中心角逐步增加，有效信号子空间维数逐步减小，当θ=π/2时，等价于点源情形；随着分布源分布角逐渐加大，有效信号子空间维数也随之增加，直到有效信号子空间充满整个空间；随着信噪比的增加，有效信号子空间维数有一定程度的减少。

The AC coefficients of an image's Discrete Cosine Transform are best approximated by Laplacian distribution model. Based on this model,the blind information hiding algorithm was proposed.

基于图像离散余弦变换交流系数的拉普拉斯分布模型，提出了一种盲提取数字图像信息隐藏算法。

与拉普拉斯分布相关的网络解释 [注：此内容来源于网络，仅供参考]

Laplacescher Entwicklungssatz Laplace expansion of a determinant：行列式的拉普拉斯展开

Laplacesche Gleichung Laplace's Equation 拉普拉斯方程 | Laplacescher Entwicklungssatz Laplace expansion of a determinant 行列式的拉普拉斯展开 | Laplace-Verteilung Laplace distribution 拉普拉斯分布

inverse laplace transform：拉普拉斯逆变换

拉普拉斯分布|Laplace distribution | 拉普拉斯逆变换|inverse Laplace transform | 拉普拉斯双曲[型]方程|Laplace hyperbolic equation

laplace beltrami operator：拉普拉斯 贝尔特拉米算子

language of formula 公式语言 | laplace beltrami operator 拉普拉斯 贝尔特拉米算子 | laplace distribution 拉普拉斯分布

laplace distribution：拉普拉斯分布

laplace beltrami operator 拉普拉斯 贝尔特拉米算子 | laplace distribution 拉普拉斯分布 | laplace equation 拉普拉斯方程

Laplace-Verteilung Laplace distribution：拉普拉斯分布

Laplacescher Entwicklungssatz Laplace expansion of a determinant 行列式的拉普拉斯展开 | Laplace-Verteilung Laplace distribution 拉普拉斯分布 | Laufflaechenkruemmung tread arc radius 踏步曲率

Laplace normal mixture distribution：拉普拉斯正态混合分布

拉普拉斯正态混合分布:Laplace normal mixture distribution | 拉氏变换的性质:Theorem of Laplace transform theory | 拉普拉斯确定论:Laplace"s certainty theory

Laplace harmonic equation：拉普拉斯调和方程

拉普拉斯变换法|method of Laplace transformation | 拉普拉斯调和方程|Laplace harmonic equation | 拉普拉斯分布|Laplace distribution

Laplacian distribution：拉普拉斯分布

拉普拉斯算子 Laplacian | 拉普拉斯分布 Laplacian distribution | 硅钛铈钠石 laplandite

Laplacian speed of sound：拉普拉斯音速

Laplace distribution 拉普拉斯分布 | Laplacian speed of sound 拉普拉斯音速 | Laporte selection rule 拉波特选择定则

inverse laplace transform：拉普拉斯逆变换

拉普拉斯分布||Laplace distribution | 拉普拉斯逆变换||inverse Laplace transform | 拉普拉斯双曲[型]方程||Laplace hyperbolic equation