The Region of Interest (ROI) the brain lesion was selected. The mean values of both the skewness and kurtosis of ADC within the ROI were determined and finally, the values were compared between benign and malignant brain lesions. The mean kurtosis and skewness of malignant and benign are ...
Therefore, this study presents the utility of skewness and kurtosis of Apparent Diffusion Coefficient (ADC) to distinguish between benign and malignant brain lesions. All the Magnetic Resonance Imaging (MRI) scans were performed with a 3 Tesla Siemens Skyra MR system using a head coil. The sample...
On Multivariate Skewness and Kurtosis Let X be a d-dimensional standardized random variable $({\\bf E}(X) = 0, \\operatorname{cov} (X) = 1)$. Then for a multivariate analogue of skewness $s = {... T.,F.,Móri,... - 《Theory of Probability & Its Applications》 被引量: 104...
However, the Gaussian distribution is most often used to characterize the topography of surfaces, and is also used in models to predict contact and friction parameters. In this paper, the effects of kurtosis and skewness on different levels of surface roughness are investigated independently. This ...
符合 正态分布的是A.直方图上呈对称分布B.偏度系数 (Coefficient of skewness) 和峰度系数 (coefficient of kurtosis)
In fact, they can be treated as normal if the absolute values of skewness and kurtosis are not greater than 1 (e.g., Ferrando et al., 2022; Lloret-Segura et al., 2014). When moderate deviations from normality are found, small corrections will suffice and will be discussed in Phase ...
Noun1.regression coefficient- when the regression line is linear (y = ax + b) the regression coefficient is the constant (a) that represents the rate of change of one variable (y) as a function of changes in the other (x); it is the slope of the regression line ...
A Bayesian model of single sample data is established,and the Bayesian estimation,linear Bayesian estimation and approximate credibility estimation of skewness and kurtosis coefficient are given. Furthermore,the model is extended to multitude data model. In this model,the statistical properties of approxi...
Method 1 – Calculate Pearson’s Skewness in Excel by Using Descriptive Statistics 1.1 Use AVERAGE, MODE.SNGL, STDEV.P Functions Steps: Select the cellG4and enter the following formula: =AVERAGE(D5:D15) Pressing enter we got the average of the values in cellD5:D15in cellG4. ...
Fig.9a shows that the three types of seal calls have obvious differences in terms of MFCC, which are specifically expressed in the location, shape, skewness and kurtosis of the distributions. Figure9b shows that the calls of leopard and weddell seals are very similar in terms of LOFAR spectrum...