Zobrazeno 1 - 10
of 320
pro vyhledávání: '"Heleno Bolfarine"'
Publikováno v:
Mathematics, Vol 11, Iss 16, p 3587 (2023)
One of the most widely known probability distributions used to explain the probabilistic behavior of positive data is the log-normal (LN). Although the LN distribution is capable of adjusting data types, it is not always fully true that the model man
Externí odkaz:
https://doaj.org/article/a55d56ba60694a47bef6556e1e59e4ea
Publikováno v:
Anais da Academia Brasileira de Ciências, Vol 93, Iss 4 (2021)
Abstract In this paper, we propose the power Student-t regression model for censored (limited) observations which extends the Student-t censored regression model. This extension is based on the asymmetric and heavy-tailed power Student-t distribution
Externí odkaz:
https://doaj.org/article/f1441d1281644b519256caa16e78a8b7
Autor:
Jaime Arrué, Reinaldo Boris Arellano-Valle, Osvaldo Venegas, Heleno Bolfarine, Héctor W. Gómez
Publikováno v:
Mathematics, Vol 10, Iss 22, p 4336 (2022)
In this study, we consider an alternative to the log-skew-normal distribution. It is called the modified log-skew-normal distribution and introduces greater flexibility in the skewness and kurtosis parameters. We first study several of the main proba
Externí odkaz:
https://doaj.org/article/95f6974bad4a4866886f333f260c3c29
Publikováno v:
Mathematics, Vol 10, Iss 7, p 1199 (2022)
In this paper, we propose a linear regression model in which the error term follows a log-gamma-normal (LGN) distribution. The assumption of LGN distribution gives flexibility to accommodate skew forms to the left and to the right. Kurtosis greater o
Externí odkaz:
https://doaj.org/article/43fc8d3c08014b81a07818092cc86ab7
Publikováno v:
Revstat Statistical Journal, Vol 18, Iss 5 (2020)
This paper considers an extension for the skew-elliptical Birnbaum–Saunders model by considering the power-normal model. Some properties of this family are studied and it is shown, in particular, that the range of asymmetry and kurtosis surpasses t
Externí odkaz:
https://doaj.org/article/b051c3c113494a09a3aaf2750abb7dc6
Autor:
Guillermo Martínez-Flórez, Carlos Barrera-Causil, Osvaldo Venegas, Heleno Bolfarine, Héctor W. Gómez
Publikováno v:
Mathematics, Vol 10, Iss 3, p 378 (2022)
In this article, we introduce a new family of symmetric-asymmetric distributions based on skew distributions and on the family of order statistics with proportional hazards. This new family of distributions is able to fit both unimodal and bimodal as
Externí odkaz:
https://doaj.org/article/f99d2c03b98a45aca2133383596853f8
Autor:
Guillermo Martínez-Flórez, Diego I. Gallardo, Osvaldo Venegas, Heleno Bolfarine, Héctor W. Gómez
Publikováno v:
Mathematics, Vol 9, Iss 24, p 3183 (2021)
The main object of this paper is to propose a new asymmetric model more flexible than the generalized Gaussian model. The probability density function of the new model can assume bimodal or unimodal shapes, and one of the parameters controls the skew
Externí odkaz:
https://doaj.org/article/3d5034773c7347a28fa14d1fba5355d7
Publikováno v:
Symmetry, Vol 13, Iss 7, p 1297 (2021)
In this paper, the skew-elliptical sinh-alpha-power distribution is developed as a natural follow-up to the skew-elliptical log-linear Birnbaum–Saunders alpha-power distribution, previously studied in the literature. Special cases include the ordin
Externí odkaz:
https://doaj.org/article/bc9cd3af705e43b4b62e39326a94c9ff
Publikováno v:
Revista Colombiana de Estadística, Vol 40, Iss 1, Pp 65-83 (2017)
Regression analysis is a technique widely used in different areas of human knowledge, with distinct distributions for the error term. It is the case, however, that regression models with the error term following a bimodal distribution are not common
Externí odkaz:
https://doaj.org/article/550ca5bcf7d947a4bcdd55a377886ad3
Publikováno v:
Revista Integración, Vol 35, Iss 1, Pp 51-70 (2017)
La distribución de probabilidad propuesta por Birnbaum y Sa un- ders se ha usado con bastante eficacia para modelar tiempos de falla de ma- teriales sujetos a la fátiga. En este artículo definimos una e xtensión de la distribución Birnbaum-Saund
Externí odkaz:
https://doaj.org/article/daffa4cffb544f3db3d7721839784bb0