Binary Response Models
Mostrando 1-12 de 18 artigos, teses e dissertações.
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1. Psychoacoustic behavior of human listeners in lateralization judgments of binaural stimuli
Abstract Introduction The present work aims to develop statistical models for the psychoacoustic behavior of human beings in lateralization judgments of binaural acoustic stimuli, as a function of Interaural Time Delay (ITD) and Interaural Amplitude Difference (IAD) for several Sensation Levels (SL). Such models intend to contribute to a deep comprehension
Res. Biomed. Eng.. Publicado em: 12/01/2017
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2. Optimization of solvent mixtures for extraction from bark of Schinus terebinthifolius by a statistical mixture-design technique and development of a UV-Vis spectrophotometric method for analysis of total polyphenols in the extract
A statistical mixture-design technique was used to study the effects of different solvents and their mixtures on the yield, total polyphenol content, and antioxidant capacity of the crude extracts from the bark of Schinus terebinthifolius Raddi (Anacardiaceae). The experimental results and their response-surface models showed that ternary mixtures with equal
Quím. Nova. Publicado em: 2014
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3. Ação antioxidante de extratos de especiarias e suas misturas binárias e ternárias sobre a estabilidade oxidativa de óleo de soja / Antioxidant activity of spices extracts and their binary and ternary mixtures on soybean oil oxidative stability
The lipid oxidation produces undesirable compounds that alter the organoleptic characteristics of food lipids and reduce the nutritional quality. In the food, cosmetics and pharmaceutical industries, synthetic antioxidants are added to retard or prevent the lipid deterioration. Due to the possible toxicity of synthetic antioxidants and the call for active na
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 01/10/2012
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4. Modelagem de eventos raros: um estudo comparativo
In some situations, in various areas of knowledge, the response variable of interest has dichotomous distribution extremely unbalanced. In the _nancial market is the common interest in determining the probability that each customer will commit a fraudulent action, and the proportion of customers fraudsters is extremely small. In health there is interest in d
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 16/01/2012
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5. Proposta de um modelo de regressão binária com resposta contínua aplicado à análise dos dados do SINASC: identificação de fatores de risco para o baixo peso ao nascer / A propose of a binary regression model with continuous response applied to data analysis from SINASC: identification of risk factors for low birth weight
O presente estudo tem por objetivo estudar a aplicabilidade de modelos de regressão binária com resposta contínua na análise de dados do SINASC (Sistema de Informações de Nascidos Vivos), analisando suas vantagens, limitações e estratégias na estimação de parâmetros ao identi car os fatores de riscos para baixo peso ao nascer. Muitos autores vê
Publicado em: 2011
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6. Análise de dados longitudinais para variáveis binárias
The objective of this work is to present techniques of regression analysis for longitudinal data when the response variable is binary. Initially, there is a review of generalized linear models, marginal models, transition models, mixed models, and logistic regression methods of estimation, which will be necessary for the development of work. In addition to t
Publicado em: 2009
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7. Modelo preditivo para perda de crédito e sua aplicação em decisão de spread / A model of credit loss and its application in decision of spread
Analytical methods for granting credit are presenting enormous advances in recent decades, particularly in the field of statistical methods of classification to identify groups of individuals with different rates of default. Most of the existing work suggests decisions of the type granting credit or not, regarding just marginally the expected outcome of the
Publicado em: 2009
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8. Caracterização de dois cDNAs homológos e uma AP endonuclease em cana-de-açúcar
The genome of all organisms is subject to injuries that can be caused by endogenous and environmental factors. If these lesions are not corrected, it can be fixed generating a mutation which can be lethal to the organisms. In order to prevent this, there are different DNA repair mechanisms. These mechanisms are well known in bacteria, yeast, human, but not i
Publicado em: 2009
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9. Análise bayesiana em modelos TRI de três parâmetros. / Bayesian analysis for three parameters IRT models
In this dissertation the bayesian analysis for three parameters IRT (Item Response Theory) models with binaries and ordinals responses, considering the probit model, was discussed. For both cases, binary and ordinal, techniques based on MCCM (Monte Carlo Markov Chain) were used to estimate the items parameters. For binary response model, was considered two d
Publicado em: 2008
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10. Transition models for binary data / Modelos de transição para dados binários
Binary or dichotomous data are quite common in many fields of Sciences in which there is an interest in registering the occurrence of a particular event. On the other hand, when each sampled unit is evaluated in more than one occasion, we have longitudinal data or repeated measures over time. It is also common, in longitudinal studies, to have explanatory va
Publicado em: 2007
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11. Inference in a regression model with overdispersed binary response and measurement errors / Inferência em um modelo de regressão com resposta binária na presença de sobredispersão e erros de medição
Modelos de regressão com resposta binária são utilizados na solução de problemas nas mais diversas áreas. Neste trabalho enfocamos dois problemas comuns em certos conjuntos de dados e que requerem técnicas apropriadas que forneçam inferências satisfatórias. Primeiro, em certas aplicações uma mesma unidade amostral é utilizada mais de uma vez, ac
Publicado em: 2007
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12. Detecção e modelagem de padrão espacial em dados binários e de contagem / Detection and modelling of space pattern in binary and counting data
The spatial distribution of insects and diseases in commercial fields is important for the efficient application of pesticides. However, in the past this has not been considered in crop management recommendations, experiment planning and sampling plans. The papers presented in this thesis were motivated by two different situation, one envolving count data an
Publicado em: 2007