Zobrazeno 1 - 10
of 28
pro vyhledávání: '"Alexandre B. Simas"'
Publikováno v:
Australian & New Zealand Journal of Statistics. 63:685-706
Publikováno v:
Anais da Academia Brasileira de Ciências, Vol 83, Iss 2, Pp 357-373 (2011)
The beta Weibull distribution was first introduced by Famoye et al. (2005) and studied by these authors and Lee et al. (2007). However, they do not give explicit expressions for the moments. In this article, we derive explicit closed form expressions
Externí odkaz:
https://doaj.org/article/e495f6d0d76a4930afd6a662ee8a72fa
Publikováno v:
Bulletin des Sciences Mathématiques. 149:23-65
In this paper, we establish a universal variational characterization of the non-martingale components associated with weakly differentiable Wiener functionals in the sense of Le\~ao, Ohashi and Simas. It is shown that any Dirichlet process (in partic
Autor:
Rodrigo N Rodriguez, Alexandre B. Simas, Jose Gallucci-Neto, Samy Dana, Bruno A Filardi, Leandro L.C. Valiengo
1ABSTRACT1.1BackgroundThe new coronavirus respiratory syndrome disease (COVID-19) pandemic has become a major health problem worldwide. Many attempts have been devoted to modeling the dynamics of new infection rates, death rates, and the impact of th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8d356904e79fbe435f601b246e7cc48c
Publikováno v:
Journal of Statistical Computation and Simulation. 87:2847-2867
In this paper we propose an alternative procedure for estimating the parameters of the beta regression model. This alternative estimation procedure is based on the EM-algorithm. For this, we took advantage of the stochastic representation of the beta
Publikováno v:
Statistics and Computing. 26:1263-1280
A general class of mixed Poisson regression models is introduced. This class is based on a mixing between the Poisson distribution and a distribution belonging to the exponential family. With this, we unified some overdispersed models which have been
Autor:
Alberto Ohashi, Alexandre B. Simas
Publikováno v:
Statistics & Probability Letters. 100:137-141
In this note, we prove a sharp Lp-rate of convergence of the number of upcrossings to the local time of the Brownian motion. In particular, it provides novel p-variation estimates (2
Autor:
Alexandre B. Simas, Fabio J. Valentim
Publikováno v:
Communications on Pure & Applied Analysis. 14:597-607
Fix a function $W(x_1,\ldots,x_d) = \sum_{k=1}^d W_k(x_k)$ where each $W_k: R \to R$ is a right continuous with left limits and strictly increasing function, and consider the $W$-laplacian given by $\Delta_W = \sum_{i=1}^d \partial_{x_i}\partial_{W_i
Autor:
Alexandre B. Simas, Andréa V. Rocha
In this work we define a set of corrected Pearson residuals for continuous exponential family nonlinear models that have the same distribution as the true Pearson residuals up to order O(n−1), where n is the sample size. Furthermore, we also introd
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7dfbf9ce418c6303ba2bd5ff786810e7
Autor:
Alexandre B. Simas, Fábio J. Valentim
Publikováno v:
Journal of Mathematical Analysis and Applications. 382(1):214-230
Fix strictly increasing right continuous functions with left limits and periodic increments, Wi:R→R, i=1,…,d, and let W(x)=∑i=1dWi(xi) for x∈Rd. We construct the W-Sobolev spaces, which consist of functions f having weak generalized gradients