Buscar
Itens para a visualização no momento 1-10 of 104
Comparação das distribuições α-estável, normal, t de student e Laplace assimétricas
(Universidade Federal de São Carlos, 2012-01-27)
Abstract The asymmetric distributions has experienced great development in recent times. They are used in modeling financial data, medical, genetics and other applications. Among these distributions, the Skew normal ...
Modelagem estatística para a determinação de resultados de dados esportivos
(Universidade Federal de São Carlos, 2007-06-27)
The basic result of a soccer game is the final scoreboard, which can be seen as a
bivariate random vector. Theoretically and based on existent literature we can argue that
the number of marked gols by a team in a game ...
Estimação bayesiana para medidas de desempenho de testes diagnósticos
(Universidade Federal de São Carlos, 2006-01-05)
In the medical area, diagnostic tests are used to classify a patient as positive or
negative with respect to a given disease. There are simple and more elaborate tests, each
one with a speci9ed rate of misclassi9cation.
To ...
Estimativas de máxima verosimilhança e bayesianas do número de erros de um software
(Universidade Federal de São Carlos, 2006-02-24)
In this work we present the methodology of capture-recapture, under the classic and bayesian approach, to estimate the number of errors of software through inspection
by distinct reviewers. We present the general statistical ...
Um enfoque bayesiano do modelo de captura-recaptura na presença de covariáveis
(Universidade Federal de São Carlos, 2006-02-22)
This work has as main objective to insert covariates in the capture probability of the multiple capture-recapture method for closed animal population. Factors like climate, seasons of the year, animal size, could a¤ect the ...
Uma revisão do fator de Bayes com aplicação à modelos com misturas
(Universidade Federal de São Carlos, 2004-03-11)
Redes probabilísticas de K-dependência para problemas de classificação binária
(Universidade Federal de São Carlos, 2012-02-28)
Classification consists in the discovery of rules of prediction to assist with planning and decision-making, being a continuously indispensable tool and a highly discussed subject in literature. As a special case in ...
Comparação do desempenho de Modelos Lineares Generalizados (MLG) e Modelos Aditivos Generalizados (MAG) na predição de dados financeiros em credit score
(Universidade Federal de São Carlos, 2010-10-07)
This study aimed to present and compare the performance of two different methodologies for statistical modeling of financial data with dichotomous response, specifically exemplified by models of credit score as well as ...
Modelo Weibull modificado de longa duração
(Universidade Federal de São Carlos, 2011-12-07)
When a group of patients is monitored until a pre-established date for observation of the
recurrence time of an event, it is possible that, at the end of the monitoring period, a parcel of such
group has not yet suffered ...
Modelo de mistura com dependência Markoviana de primeira ordem
(Universidade Federal de São Carlos, 2014-09-12)
We present the mixture model with first order dependence, MMM(1). This model corresponds to a redefinition of the hidden Markov model (HMM) where a non observable variable is used to control the mixture. The usual mixture ...