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Analysis of dengue fever outbreak by generalized fractional derivative
(2020)
In this paper, we use the generalized fractional derivative in order to study the fractional differential equation associated with a fractional Gaussian model. Moreover, we propose new properties of generalized differential ...
Defective models for cure rate modeling
(Universidade Federal de São CarlosUFSCarPrograma de Pós-Graduação em Estatística - PPGEsCâmpus São Carlos, 2016-04-01)
Modeling of a cure fraction, also known as long-term survivors, is a part of survival analysis. It studies cases where supposedly there are observations not susceptible to the event of interest. Such cases require special ...
Dihedral-angle Gaussian distribution driving protein folding
(2008)
The proposal of this paper is to provide a simple angular random-walk model to build up polypeptide structures, which
encompass properties of dihedral angles of folded proteins. From this model, structures will be built ...
Minimum distance estimation of ARFIMA processes
(Elsevier Science BvAmsterdamHolanda, 2013)
Superdiffusion in a non-Markovian random walk model with a Gaussian memory profile
(SPRINGERNEW YORK, 2012)
Most superdiffusive Non-Markovian random walk models assume that correlations are maintained at all time scales, e. g., fractional Brownian motion, Levy walks, the Elephant walk and Alzheimer walk models. In the latter two ...
Um estudo dos modelos de sobrevivência de longa duração LIGcr e GEPGWcr
(Universidade Federal de São CarlosUFSCarPrograma Interinstitucional de Pós-Graduação em Estatística - PIPGEsCâmpus São Carlos, 2022-10-04)
In this work we study two long-term survival models denomined Logaritmic Inverse Gaussian cure rate (LIGcr) model and Geometric Exponentiated Power Generalized Weibull cure rate (GEPGWcr) model. Both models take into ...
Fractional iterated Ornstein-Uhlenbeck Processes
(Institute of Mathematical Statistics, 2019)
We present a Gaussian process that arises from the iteration of p fractional Ornstein–Uhlenbeck processes generated by the same fractional Brownian motion. When the values of the parameters defining the iteration are ...
Spectral simulation of vector random fields with stationary gaussian increments in d-dimensional euclidean spaces
(Springer, 2017)
This paper addresses the problem of simulating multivariate random fields with stationary Gaussian increments in a d-dimensional Euclidean space. To this end, one considers a spectral turning-bands algorithm, in which the ...
Simulation of Intrinsic Random Fields of Order k with Gaussian Generalized Increments by Gibbs Sampling
(Springer, 2015)
This work pertains to the simulation of an intrinsic random field of order k
with a given generalized covariance function and multivariate Gaussian generalized
increments. An iterative algorithm based on the Gibbs sampler ...
Deformations of the Tracy-Widom distribution
(AMER PHYSICAL SOC, 2009)
In random matrix theory, the Tracy-Widom (TW) distribution describes the behavior of the largest eigenvalue. We consider here two models in which TW undergoes transformations. In the first one disorder is introduced in the ...