Results 81 to 90 of about 672,008 (194)

On the Problem of More Than One Kurtosis Parameter in Multivariate Analysis

Journal of Multivariate Analysis, 1993
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire   +2 more sources

Kurtosis modelling by means of the J-transformation [PDF]

The H-family of distributions or H-distributions, introduced by Tukey (1960, 1977), are generated by a single transformation of the standard normal distribution and allow for leptokurtosis represented by the parameter h.
Fischer, Matthias J., Klein, Ingo
core  

Kurtosis ordering of the generalized secant hyperbolic distribution: a technical note [PDF]

Two major generalizations of the hyperbolic secant distribution have been proposed in the statistical literature which both introduce an additional parameter that governs the kurtosis of the generalized distribution.
Fischer, Matthias J., Klein, Ingo
core  

The diagnostic value of histogram analysis of DWI and DKI for the mismatch repair status of rectal adenocarcinoma

Heliyon
Objectives: To compare the diagnostic value of histogram analysis derived from diffusion weighted imaging (DWI) and diffusion kurtosis imaging (DKI) in differentiating the mismatch repair (MMR) status of rectal adenocarcinoma.
Hao Chen, Zhicheng Jin, Xiaoxiao Dai, Juan Zhu, Guangqiang Chen   +4 more
doaj   +1 more source

Measures of multivariate skewness and kurtosis in high-dimensional framework

, 2014
Skewness and kurtosis characteristics of a multivariate p-dimensional distribution introduced by Mardia (1970) have been used in various testing procedures and demonstrated attractive asymptotic properties in large sample settings.
Pavlenko, Tetyana,, Sumikawa, T., Koizumi, K.   +2 more
core   +1 more source

Multivariate skewness and Kurtosis for singular distributions

, 1993
In multivariate analysis it is generally assumed that the observations are normally distributed. It was Mardia ([1] to [5]), who first introduced measures of multivariate skewness and kurtosis; these statistics are affine invariant and can be used for ...
Ardanuy Albajar, Ramón, Sánchez Santos, José Manuel   +1 more
core  

Understanding how kurtosis is transferred from input acceleration to stress response and it's influence on fatigue life

, 2013
High cycle fatigue of metals typically occurs through long term exposure to time varying loads which, although modest in amplitude, give rise to microscopic cracks that can ultimately propagate to failure.
Halfpenny, Andrew, Kihm, Fred, Rizzi, Stephen, Ferguson, Neil   +3 more
core   +1 more source

Texture analysis of CT colonography to develop a novel imaging biomarker for the management of colorectal cancer

Annals of Gastroenterological Surgery
Background Recent studies have focused on evaluating the biomarker value of textural features in radiological images. Our study investigated whether or not a texture analysis of computed tomographic colonography (CTC) images could be a novel biomarker ...
Hisashi Mamiya, Toru Tochigi, Koichi Hayano, Gaku Ohira, Shunsuke Imanishi, Tetsuro Maruyama, Yoshihiro Kurata, Yumiko Takahashi, Atsushi Hirata, Hisahiro Matsubara   +9 more
doaj   +1 more source

The value of diffusion-weighted imaging-based texture analysis in glioma grading

肿瘤影像学, 2019
Objective: To investigate the value of texture analysis based on diffusion-weighted imaging (DWI) in grading glioma. Methods: A retrospective analysis was made of 30 low grade glioma (LGG) (grade Ⅱ) and 97 high grade glioma (HGG) (grade Ⅲ 46 cases, grade
HAN Lei, SHI Huixian, WU Liuyang, LI Qingrun, CHEN Hongri, ZHANG Hongying   +5 more
doaj  

The Evaluation of Combined Diffusion Kurtosis Imaging and Intravoxel Incoherent Motion Diffusion Weighted Imaging in Preoperatively Predicting Sentinel Lymph Node Metastasis of Breast Cancer. [PDF]

Int J Gen Med
Li X, Fang J, Zou X, Mu X, Cao T, Jiang X.   +5 more
europepmc   +1 more source