Zobrazeno 1 - 10
of 209
pro vyhledávání: '"Guillermo Martínez Flórez"'
Publikováno v:
Mathematics, Vol 12, Iss 22, p 3566 (2024)
In this study, we model the rate or proportion of a specific phenomenon using a set of known covariates. To fit the regression model, which explains the phenomenon within the intervals (0,1), [0,1), (0,1], or [0,1], we employ a logit link function. T
Externí odkaz:
https://doaj.org/article/2ea8db2dc780413d9e8091f3649bdc32
Publikováno v:
Mathematics, Vol 12, Iss 21, p 3334 (2024)
We introduce and investigate the properties of new families of univariate and bivariate distributions based on the survival function of the Lindley distribution. The univariate distribution, to reflect the nature of its construction, is called a powe
Externí odkaz:
https://doaj.org/article/02e5b9a2b5af46c0b581bc841d6c4591
Publikováno v:
Axioms, Vol 13, Iss 9, p 576 (2024)
A nonlinear log-Birnbaum–Saunders regression model with additive errors is introduced. It is assumed that the error term follows a flexible sinh-normal distribution, and therefore it can be used to describe a variety of asymmetric, unimodal, and bi
Externí odkaz:
https://doaj.org/article/726ae31043c3420cba3f1ec83b969633
Publikováno v:
Mathematics, Vol 12, Iss 16, p 2486 (2024)
The modeling of data involving proportions, confined to a unit interval, is crucial in diverse research fields. Such data, expressing part-to-whole relationships, span from the proportion of individuals affected by diseases to the allocation of resou
Externí odkaz:
https://doaj.org/article/b70904d4a2e84093a818f22f1a3a4ad4
Publikováno v:
Mathematics, Vol 12, Iss 14, p 2170 (2024)
In problems involving binary classification, researchers often encounter data suitable for modeling dichotomous responses. These scenarios include medical diagnostics, where outcomes are classified as “disease” or “no disease”, and credit sco
Externí odkaz:
https://doaj.org/article/4baf94511ed64cc084578b423461f0bb
Publikováno v:
Anais da Academia Brasileira de Ciências, Vol 94, Iss 4 (2022)
Abstract This paper introduce two new families of distributions that allow fitting unimodal, bimodal or trimodal data sets. Statistical properties such as distribution function, moments, moment generating function and stochastic representation of the
Externí odkaz:
https://doaj.org/article/29481303aa864bc09480af06fd496852
Publikováno v:
Mathematics, Vol 11, Iss 17, p 3760 (2023)
In this article, we introduce a novel bivariate probability distribution that is absolutely continuous. Considering the Farlie–Gumbel–Morgenstern (FGM) copula and the unit-Weibull distribution, we can obtain a bivariate unit-Weibull distribution.
Externí odkaz:
https://doaj.org/article/e48f4980dcc64179bb392c509ddd9a2a
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:
Axioms, Vol 12, Iss 7, p 624 (2023)
In this paper, we propose a nonlinear regression model with exponentiated skew-elliptical errors distributed, which can be fitted to datasets with high levels of asymmetry and kurtosis. Maximum likelihood estimation procedures in finite samples are d
Externí odkaz:
https://doaj.org/article/a05ae6a437b74e379a359c283b751a7b
Publikováno v:
Mathematics, Vol 11, Iss 5, p 1271 (2023)
Using a two-piece normal distribution for modeling univariate data that exhibits symmetry, and uni/bimodality is notably effective. In this respect, the shape parameter value determines whether unimodality or bimodality is present. This paper propose
Externí odkaz:
https://doaj.org/article/aa9cec9032d2421f84fa47ac3ca3a82e