Maximum Likelihood Linear Regression
Mostrando 1-12 de 18 artigos, teses e dissertações.
-
1. Quantifying individual variation in reaction norms using random regression models fitted through Legendre polynomials: application in eucalyptus breeding
ABSTRACT An accurate, efficient and informative statistical method for analyses of genotype × environment (G × E) interactions is a key requirement for progress in any breeding program. Thus, the objective of this study was to quantify individual variation in reaction norms using random regression models fitted through Legendre polynomials in eucalyptus (E
Bragantia. Publicado em: 2020-12
-
2. Estimating Poisson pseudo-maximum-likelihood rather than log-linear model of a log-transformed dependent variable
Abstract Purpose The purpose of this study is to account for a recent non-mainstream econometric approach using microdata and how it can inform research in business administration. More specifically, the paper draws from the applied microeconometric literature stances in favor of fitting Poisson regression with robust standard errors rather than the OLS lin
RAUSP Manag. J.. Publicado em: 13/12/2019
-
3. Asymptotic properties for a general extremevalue regression model
In this thesis we introduce a general extreme-value regression model and derive Cox and Snellâs (1968) general formulae for second-order biases of maximum likelihood estimates (MLEs) of the parameters. We present formulae which can be computed by means of weighted linear regressions. Furthermore, we give the skewness of order n−1/2 of the MLEs of the
Publicado em: 2009
-
4. Further statistical methods in regression models of the exponential family / Aperfeiçoamento de métodos estatísticos em modelos de regressão da família exponencial
In this work, we develop three topics related to the exponential family nonlinear regression. First, we obtain the asymptotic covariance matrix of order $n^$, where $n$ is the sample size, for the maximum likelihood estimators corrected by the bias of order $n^$ in generalized linear models, considering the precision parameter known. Second, we calculate an
Publicado em: 2009
-
5. Modelos não-lineares de regressão : alguns aspectos de teoria assintótica
The main objective in this dissertation is to derive expressions for the second-order biases of the maximum likelihood estimators of the parameters of the Weibull generalized linear model (WGLM), which are useful to define corrected estimators. In order to reduce the bias of these estimators in finite sample sizes, the method of bias correction introduced by
Publicado em: 2009
-
6. Estimation and diagnostic in Birnbaum-Saunders skew-normal models / Estimação e diagnostico em modelos Birnbaum-Saunders skew-normal
The class of models Birnbaum-Saunders (BS) appeared in problems of fatigue of materials (which is a structural damage that occurs when a material is exposed to stress and tension). Recently, this model has been applied in areas outside the context of fatigue of materials and engineering, for example in health sciences, environmental, forestry, demographic, a
Publicado em: 2009
-
7. Study of Cerrado physiognomies with Hyperion-EO-1 data / Estudo de fitofisionomias de Cerrado com dados do sensor Hyperion-EO-1
The study of the Brazilian savanna physiognomies (Cerrado) using remote sensing data is still a challenge due to floristic and structural diversity, variation in phenological response to precipitation, relationships with other biomes in the transition zones, and to fire and resultant effects. Because of these factors, some physiognomies are not separable in
Publicado em: 2009
-
8. Regressão linear com medidas censuradas / Linear regression with censored data
We consider a simple linear regression model in which both variables are interval censored. To motivate the problem we use data from an audiometric study designed to evaluate the possibility of prediction of behavioral thresholds from physiological thresholds. We develop prediction intervals for the response variable, obtain the maximum likelihood estimators
Publicado em: 2008
-
9. SMOOTH TRANSITION LOGISTIC REGRESSION MODEL TREE / MODELO DE REGRESSÃO LOGÍSTICA COM TRANSIÇÃO SUAVE ESTRUTURADO POR ÁRVORE (STLR-TREE)
The main goal of this work is to adapt the STR-Tree model, which is the combination of a Smooth Transition with Regression model with Classi cation and Regression Tree (CART), in order to use it in Classification. Some changes were made in its structural form and in the estimation. Due to the fact we are doing binary dependent variables classification, is ne
Publicado em: 2008
-
10. Genetic trends in the expected progeny difference of the asymptotic weight of Nelore females
There are few studies on weight covering the full life cycle of Zebu cattle, and there is no entire growth description or mean growth pattern for animals belonging to this breed. In order to provide such data, 1,158 Nelore females born between 1985 and 1995 were weighed 14,563 times from birth to full growth maturity, in ten herds spread over seven Brazilian
Genetics and Molecular Biology. Publicado em: 2006
-
11. Adaptação de locutor em sistema de reconhecimento de fala contínua empregando "Eigenvoices"
Neste trabalho realizou-se o estudo da técnica via "eigenvoices"[13] [16][17][18] [30] [31]para adaptação de locutor em um sistema de reconhecimento de fala contínua usando o portugués do Brasil. Dentre as várias técnicas utilizadas para a adaptação de locutor, incluindo as clássicas MAP ("Maximum A Posteriori ) e MLLR ("Maximum Likelihood Linear R
Publicado em: 2004
-
12. Genetic analysis of resistance to anthracnose leaf blight in maize. / Análise genética da resistência à antracnose foliar em milho.
The objectives of this work were to study the inheritance of resistance to anthracnose leaf blight, estimate the genetic parameters, and identify molecular markers associated with resistance genes to this disease. Genetic parameters were estimated based on the analysis of mixed inheritance models in six generations of four crosses between two resistant (DAS4
Publicado em: 2004