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Master's Dissertation
DOI
10.11606/D.45.2001.tde-10102008-100630
Document
Author
Full name
Paulo Tadeu Meira e Silva de Oliveira
E-mail
Institute/School/College
Knowledge Area
Date of Defense
Published
São Paulo, 2001
Supervisor
Committee
Bolfarine, Heleno (President)
Labra, Filidor Edilfonso Vilca
Sandoval, Monica Carneiro
Title in Portuguese
Estimação e testes de hipóteses em calibração comparativa
Keywords in Portuguese
BFGS
Calibração comparativa
modelos com erros nas variáveis
Ox
Abstract in Portuguese
Sabemos da literatura que Calibração Comparativa está ligada à comparação de eficiência de instrumentos de medição. Neste trabalho discutimos estimação e testes de hipóteses em modelos de calibração comparativa. Para a estimação dos parâmetros do modelo, consideramos os algoritmos EM e o algoritmo BFGS do programa Ox. Testes para algumas hipóteses de interesse são implementados usando as estatísticas da razão de verossimilhanças e de Wald. Estudos de simulação são utilizados na comparação dos procedimentos. Uma aplicação é apresentada a um conjunto de dados constituído de medições de alturas de árvores com três, quatro e cinco hipsômetros.
Title in English
Estimationin hypotheses testings of comparative calibration
Keywords in English
BFGS algorithm
comparative calibration models
erros in the variables models
Ox
Abstract in English
We know about the literature that Comparative Calibration it is linked the efficiency comparison of measurement instruments. In this work we discuss estimates and tests of hypotheses in comparative calibration models. For the estimate of the parameters of the model, we consider the EM algorithm and the algorithm BFGS in the program Ox. Testings for some hypotheses of interest are implemented using the likelihood ratio and Wald statistics. Simulation studies are used in the comparison of the procedures. An application is presented to a data set, constituted of measurements of heights of trees with three, four and five hipsometers.
 
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Calibra.pdf (538.38 Kbytes)
tabela_23.pdf (450.71 Kbytes)
Publishing Date
2009-01-28
 
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