Results 11 to 20 of about 277,143 (293)
Pesquimat, 2014 This work reviews the literature on kurtosis from Pearson'e definition in the early 1900's to our days. The evolution of the concept of kurtosis is described and the different ways of quantifying it are compared; graphs that help to understand the ideas ...
María Edith Seier Zúñiga
doaj +4 more sources
Kurtosis transformation and kurtosis ordering [PDF]
, 2003 Leptokurtic distributions can be generated by applying certain non-linear transformations to a standard normal random variable. Within this work we derive general conditions for these transformations which guarantee that the generated distributions are ...
Fischer, Matthias J., Klein, Ingo
core +3 more sources
Augoregressive Conditional Kurtosis [PDF]
, 2002 This paper proposes a new model for autoregressive conditional heteroscedasticity and kurtosis. Via a time-varying degrees of freedom parameter, the conditional variance and conditional kurtosis are permitted to evolve separately. The model uses only the
Chris Brooks +2 more
core +1 more source
Sensors, 2022 Connectivity among different areas within the brain is a topic that has been notably studied in the last decade. In particular, EEG-derived measures of effective connectivity examine the directionalities and the exerted influences raised from the ...
Leonardo Góngora +4 more
doaj +1 more source
Journal of Marine Science and Engineering, 2022 The understanding of the occurrence of extreme waves is crucial to simulate the growth of waves in coastal regions. Laboratory experiments were performed to study the spatial evolution of the statistics of group-focused waves that have a relatively broad-
Iskander Abroug +2 more
doaj +1 more source
GRANULOMETRIC ANALYSIS OF THE SARMATIAN SANDS FROM THE MOESIAN PLATFORM DESCRIBING ASPECTS OF THE DEPOSITIONAL ENVIRONMENT [PDF]
Romanian Journal of Petroleum & Gas Technology, 2023 The Moesian Platform pertaining to Romania gathers numerous petroleum and gas reservoirs of various sizes and types of hydrocarbons, from black oil to shallow gas reservoirs. They are sited in reservoir rocks having different lithologies (limestone, sand,
Jacota Dan-Romulus
doaj +1 more source
Frontiers in Oncology, 2020 Objective: This study aimed to compare the potential of monoexponential model (MEM), intravoxel incoherent motion (IVIM) model, kurtosis model, and IVIM–kurtosis model in the diagnosis and aggressiveness assessment of prostate cancer (PCa).Materials and ...
Ying Liu +12 more
doaj +1 more source
IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2021 Hyperspectral unmixing (HU) has become an important technique in exploiting hyperspectral data since it decomposes a mixed pixel into a collection of endmembers weighted by fractional abundances.
E. M. M. B. Ekanayake +7 more
doaj +1 more source
Correlation tensor magnetic resonance imaging
NeuroImage, 2020 Diffusional Kurtosis Magnetic Resonance Imaging (DKI) quantifies the extent of non-Gaussian water diffusion, which has been shown to be a sensitive biomarker for microstructure in health and disease.
Rafael Neto Henriques +2 more
doaj +1 more source
Electronic Journal of Plant Breeding, 2022 An experiment was conducted with 125 germplasm accessions and five check varieties of Oat (Avena sativa L.) in augmented design during rabi, 2019-20. Nineteen quantitative traits were studied for the assessment of genetic variability.
Rashmi Toppo and Mayuri Sahu*
doaj +1 more source