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pro vyhledávání: '"Noncentral chi distribution"'
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Akademický článek
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Autor:
John Lawrence
Publikováno v:
Sankhya A.
Explicit closed form formulas for the integer moments of the noncentral chi distribution are given. The mean of the noncentral chi distribution is the average distance between a fixed point and a random vector with a standard multivariate normal dist
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::135dcfba5e3a32f40606f3c468de5c90
https://doi.org/10.1007/s13171-021-00262-3
https://doi.org/10.1007/s13171-021-00262-3
Autor:
Saralees Nadarajah, Stephen Chan
Publikováno v:
Sankhya A. 85:803-807
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b770fc8d0fbaa831cd6b5f23d6d2588f
https://doi.org/10.1007/s13171-022-00278-3
https://doi.org/10.1007/s13171-022-00278-3
Autor:
Hilgers, Michael G.
Publikováno v:
Applied Sciences (2076-3417); Aug2024, Vol. 14 Issue 15, p6731, 32p
Autor:
Reza P. R. Hasanzadeh, Nima Yaghoobi
Publikováno v:
Magnetic Resonance Imaging. 52:102-117
De-noising is a crucial topic in Magnetic Resonance Imaging (MRI) which focuses on less loss of Magnetic Resonance (MR) image information and details preservation during the noise suppression. Nowadays multiple-coil MRI system is preferred to single
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b2444d04d0edccd45db33582af001849
https://doi.org/10.1016/j.mri.2018.06.014
https://doi.org/10.1016/j.mri.2018.06.014
Publikováno v:
Magnetic Resonance Imaging. 31:1372-1383
We extend the diffusion tensor (DT) signal model for multiple-coil acquisition systems. Considering the sum-of-squares reconstruction method, we compute the Cramér–Rao bound (CRB) assuming the widely accepted noncentral chi distribution. Within th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::99ed5b5d8b64b824f53e628de34ef7fd
https://doi.org/10.1016/j.mri.2013.04.009
https://doi.org/10.1016/j.mri.2013.04.009
Autor:
Richard G. Brereton
Publikováno v:
Journal of Chemometrics. 29:582-586
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b439ccdd6d9c4be6299326ffaee55e8b
https://doi.org/10.1002/cem.2734
https://doi.org/10.1002/cem.2734
Publikováno v:
Communications in Statistics - Simulation and Computation. :1-13
The quadratic discriminant function (QDF) with known parameters has been represented in terms of a weighted sum of independent noncentral chi-square variables. To approximate the density function of the QDF as m-dimensional exponential family, its mo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6de7ce756d62413de65bdc22bd225b14
https://doi.org/10.1080/03610918.2015.1053920
https://doi.org/10.1080/03610918.2015.1053920
Autor:
Tong Hui Wang, Ren Dao Ye
Publikováno v:
Acta Mathematica Sinica, English Series. 31:576-594
For the linear mixed model with skew-normal random effects, this paper gives the density function, moment generating function and independence conditions. The noncentral skew chi-square distribution is defined and its density function is shown. The n
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::732847e3c4ef9db1257aca0a206a995d
https://doi.org/10.1007/s10114-015-3326-5
https://doi.org/10.1007/s10114-015-3326-5