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Mostrando ítems 21-30 de 5495
Zeroes of generalized Fresnel complementary integral functionsCeros de funciones integrales complementarias de Fresnel generalizadas
(Universidad de Costa Rica, Centro de Investigación en Matemática Pura y Aplicada (CIMPA), 2016)
Inferência para modelos de fração de cura zeros inflacionados aplicados a dados de risco de crédito
(Universidade Federal de São CarlosUFSCarCâmpus São CarlosEstatística - Es, 2021-10-28)
Given the great demand for granting credit and service goods, there is a need to be able to control the risk involved in the process. This measure aims to manage possible unwanted events, for example, default, in order to ...
Detecção de clusters espacias e espaço-temporais em modelos com excesso de zeros e sobredispersão
(Universidade Federal de Minas GeraisUFMG, 2015-04-16)
The Spatial Scan Statistic is one of the most important methods for detecting and monitoring spatial disease clusters. Usually it is assumed that disease cases follow a Poisson or Binomial distribution. In practice, however, ...
Zero counting for a class of univariate Pfaffian functions
(Academic Press Inc Elsevier Science, 2016-04)
We present a new procedure to count the number of real zeros of a class of univariate Pfaffian functions of order 1. The procedure is based on the construction of Sturm sequences for these functions and relies on an oracle ...
A general class of zero-or-one inflated beta regression models
(ELSEVIER SCIENCE BVAMSTERDAM, 2012)
This paper proposes a general class of regression models for continuous proportions when the data contain zeros or ones. The proposed class of models assumes that the response variable has a mixed continuous-discrete ...
Métodos computacionais de Monte Carlo para determinar do zeros de Fisher no modelo de Heisenberg anisotrópico 2D
(Universidade Federal de Minas GeraisBrasilICX - DEPARTAMENTO DE FÍSICAPrograma de Pós-Graduação em FísicaUFMG, 2021-10-21)
In this work we studied the phase transitions that chatacterize the Anisotropic heisenberg spin model varying the anisotropy parameter δ. In this work we used Monte Carlo Methods to run simulations of the model and used a ...
The Occurrence of Zero-Hopf Bifurcation in a Generalized Sprott A System
(2020-01-01)
From the normal form of polynomial differential systems in R3 having a sphere as invariant algebraic surface, we obtain a class of quadratic systems depending on ten real parameters, which encompasses the well-known Sprott ...
Zero-Hopf Bifurcations in Three-Dimensional Chaotic Systems with One Stable Equilibrium
(2020-10-01)
In [Molaie et al., 2013] the authors provided the expressions of 23 quadratic differential systems in R3 with the unusual feature of having chaotic dynamics coexisting with one stable equilibrium point. In this paper, we ...
Investigação da capacidade preditiva de modelos com efeitos aleatórios em GAMLSS: um estudo em dados de seguros de automóveisInvestigation of the predictive capacity of models with random effects in GAMLSS: a study on auto insurance data
(Universidade Federal de LavrasPrograma de Pós-Graduação em Estatística e Experimentação AgropecuáriaUFLAbrasilDepartamento de Estatística, 2022)
A new class of discrete models for the analysis of zero-modified count data
(Universidade Federal de São CarlosUFSCarPrograma Interinstitucional de Pós-Graduação em Estatística - PIPGEsCâmpus São Carlos, 2020-04-03)
In this work, a new class of discrete models for the analysis of zero-modified count data has been introduced. The proposed class is composed of hurdle versions of the Poisson-Lindley, Poisson-Shanker, and Poisson-Sujatha ...