18 citations · 50 across the 51 of their papers we have counts for
6 papers · 1 filter
The negative binomial beta prime regression model with cure rate
Jeremias Leão, Marcelo Bourguignon, Manoel Santos-Neto +1
This paper introduces a cure rate survival model by assuming that the time to the event of interest follows a beta prime distribution and that the number of competing causes of the…
Log-symmetric regression models for correlated errors with an application to mortality data
Helton Saulo, Roberto Vila
Log-symmetric regression models are particularly useful when the response variable is continuous, strictly positive and asymmetric. In this paper, we proposed a class of log-symmet…
A new mixture-based fixed-effect model for a biometrical case-study related to immunogenecity with highly censored data
Mário F. Desousa, Helton Saulo, Manoel Santos-Neto +1
We propose a new continuous-discrete mixture regression model which is useful for describing highly censored data. We motivate our investigation based on a case-study in biometry r…
On a bivariate Birnbaum-Saunders distribution parameterized by its means: features, reliability analysis and application
Helton Saulo, Jeremias Leão, Roberto Vila +2
Birnbaum-Saunders models have been widely used to model positively skewed data. In this paper, we introduce a bivariate Birnbaum-Saunders distribution which has the means as parame…
A class of asymmetric regression models for left-censored data
Helton Saulo, Jeremias Leao, Juvencio Nobre +1
A common assumption regarding the standard tobit model is the normality of the error distribution. However, asymmetry and bimodality may be present and alternative tobit models mus…
On a bimodal Birnbaum-Saunders distribution with applications to lifetime data
Roberto Vila, Jeremias Leão, Helton Saulo +2
The Birnbaum-Saunders distribution is a flexible and useful model which has been used in several fields. In this paper, a new bimodal version of this distribution based on the alph…