Super-Gaussian Distribution Produced in CO2 LaserMoscow State UniversityRussian Academy of SciencesAbout Us
Math - 高斯正态分布(转) 正态分布(Normal distribution)又名高斯分布(Gaussian distribution),是一个在数学、物理及工程等领域都非常重要的概率分布,在统计学的许多方面有着重大的影响力。 若随机变量X服从一个数学期望为μ、标准方差为σ2的高斯分布,记为: X∼N(μ,σ2), 则其概率密度函数为 正态分布的...
图像块选取:将图像分割成小块,并选择具有一定锐度的图像块进行特征计算。 特征化图像块:使用广义高斯分布(Generalized Gaussian Distribution,GGD)对选定的图像块进行建模,提取特征。 MVG模型:将提取的特征拟合到多元高斯(Multivariate Gaussian,MVG)模型中。 NIQE指标计算:通过比较测试图像的MVG模型参数与自然图像语料库中...
where \(D=\alpha I\) is an invertible matrix defined as a magnified unit matrix by a factor of \(\alpha\), which controls the overall magnitude of added noises, and \({{{\bf{g}}}\) is a random noise map sampled from a Gaussian distribution with zero means: $${{{\bf{g}}} \...
3 TOI-1853 spectral energy distribution. The error bars represent one standard deviation. The best-fit model is shown as a solid black line. Extended Data Fig. 4 GLS periodograms. The periodograms of the RVs, its residuals from the global fit and several activity indexes are plotted ...
the weights of the convolution filters are initialized with the method designed for PReLU in [23]. As we do not have activation functions at the end, the deconvolution filters are initialized by the same way as in SRCNN (i.e.,drawing randomly from a Gaussian distribution with zero mean and...
Moreover, the typical Boltzmann Gaussian distribution of topoisomers found in wild-type cells was replaced with a very broad, heterogeneous distribution. The sequences in the DNA responsible for this unusual distribution were those encoding the promoter region for the tetracycline resistance gene. The...
An equivalent way of phrasing this that the Gaussian distribution N(x, σ2I) puts measure 0.98 on the decision region of class "panda," defined as the set {x': f(x') = "panda"}. You can prove that no matter how the decision regions of f are "shaped", for any δ with ||δ|...
加性高斯噪声(Additive Gaussian Noise)和高斯噪声(Gaussian Noise)在很多情况下是可以互换使用的术语,因为它们都描述了一种具有特定统计特性的噪声,这种噪声的概率密度函数符合高斯分布(也称为正态分布)。不过,这两个术语在使用上有时会有细微的区别: 高斯噪声 (Gaussian Noise): 高斯噪声是指其幅度分布符合高斯分布...
The absolute and convective instability characteristics of supersonic wake dominated shear layers, described by a hyperbolic-tangent profile plus a wake component represented by a Gaussian distribution, are investigated. The effects of the Mach number, the freestream temperature ratio and the wake defici...