Bayes Theorem
Mostrando 1-12 de 15 artigos, teses e dissertações.
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1. Valoración de la idoneidad epistémica y cognitiva de un proceso de instrucción en la resolución de problemas bayesianos
This paper aims to present the assessment of an instructional process about the Bayes Theorem carried out with 50 Engineering students in a Statistics class of the Universidad Nacional de Mar del Plata. Under the theoretical and methodological framework of the Ontosemiotic Approach to Mathematical Cognition and Instruction, this assessment is done in epistem
Bolema. Publicado em: 2014-04
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2. Development and validation of a genotype 3 recombinant protein-based immunoassay for hepatitis E virus serology in swine
Hepatitis E virus (HEV) is classified within the family Hepeviridae, genus Hepevirus. HEV genotype 3 (Gt3) infections are endemic in pigs in Western Europe and in North and South America and cause zoonotic infections in humans. Several serological assays to detect HEV antibodies in pigs have been developed, at first mainly based on HEV genotype 1 (Gt1) antig
Braz J Med Biol Res. Publicado em: 21/03/2014
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3. Uma proposta lingÃÃstica para a eduÃÃo dos parÃmetros de redes bayesianas-fuzzy na estimaÃÃo da probabilidade de erro humano
Uma grande escassez de dados à notada quando se està trabalhando em uma anÃlise probabilÃstica de riscos (APR). Alguns mÃtodos sÃo propostos na literatura como forma de contornar esse grande problema. Tais mÃtodos sÃo chamados de mÃtodos de eduÃÃo da opiniÃo do especialista. Nesses mÃtodos o analista recorre a especialistas que tÃm grande conhe
Publicado em: 2008
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4. AnÃlise probabilÃstica de risco via Redes Bayesianas: uma aplicaÃÃo na construÃÃo de poÃos multilaterais
A anÃlise probabilÃstica de riscos à um mÃtodo que ajuda a identificar e avaliar o risco, em sistemas de tecnologia complexa, com o propÃsito de atravÃs de uma anÃlise de custobenefÃcio melhorar a seguranÃa e desempenho. O mÃtodo âtradicionalâ faz uso de duas tÃcnicas de modelagem e avaliaÃÃo: Ãrvore de falhas e Ãrvore de eventos. PorÃm, es
Publicado em: 2005
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5. Sistema especialista para apoio à perícias médicas para autorização de procedimento cirúrgico para tratamento de obesidade mórbida
Atualmente, a autorização da realização de cirurgias para o tratamento de Obesidade Mórbida, deve ser precedida por exame pericial médica, ou seja, exame documental e clínico, realizado por médico perito. Doença que acomete mais de 10% da população brasileira, conforme pesquisa divulgada pelo Instituto Brasileiro de Geografia e Estatística, reali
Publicado em: 2005
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6. PROBABILISTIC PORE PRESSURE PREDICTION IN RESERVOIR ROCKS THROUGH COMPRESSIONAL AND SHEAR VELOCITIES / PREVISÃO PROBABILÍSTICA DE PRESSÃO DE POROS EM ROCHAS RESERVATÓRIO ATRAVÉS DE VELOCIDADES COMPRESSIONAIS E CISALHANTES
This work proposes a method for pore pressure prediction in reservoir rocks through compressional- and shear-velocity data (seismic attributes). In the method, the attributes are considered observations of a physic system, which behavior depends on a several not-observable parameters, where the pore pressure is only one of these parameters. To estimate the p
Publicado em: 2005
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7. What is the probability of a patient presenting a pleural effusion due to tuberculosis?
INTRODUCTION: In Rio de Janeiro, in almost half of the cases of pleural tuberculosis (PT) treatment begins without substantiation of diagnosis. We examined variables associated with this disease. METHOD: We studied 215 consecutive patients; 104 had tuberculosis (TB) and 111 did not (NTB): 41 neoplasms, 29 transudates, 28 para-pneumonic and 13 other etiologie
Brazilian Journal of Infectious Diseases. Publicado em: 2004-08
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8. Uso da teoria de estimacao bayesiana na fusão de dados de satélites / Bayesian model for pictorial data fusion of satellite image
Fusão de dados pictóricos é a denominação de um conjunto de técnicas para gerar imagens sintéticas a partir da combinação de imagens primárias, procurando aproveitar as melhores características de cada imagem primária. Nesta dissertação, é desenvolvido um modelo bayesiano de fusão de dados pictóricos utilizando como base o trabalho de Brum (
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 14/02/1992
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9. Medical Diagnosis Using Bayes Theorem
A computerized study of the applicability of Bayes theorem to the differential diagnosis of liver disease has been made. Statistical independence of symptoms is not presumed. The semantic obstacle involved in precise definition of the symptom and disease categories is discussed. Input for the study was obtained from patient records, and diagnosis supported b
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10. Development and validation of a computer program using Bayes's theorem to support diagnosis of rheumatic disorders.
A computer program has been developed to support the differential diagnosis of major rheumatic disease categories. Knowledge for the program was derived from the sensitivity and specificity of findings in a group of 1052 consecutive patients of a rheumatological outpatient clinic. Computer predictions based on two variations of Bayes's theorem were compared
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11. Two-Locus Linkage Analysis Using Recombinant Inbred Strains and Bayes' Theorem
Recombinant inbred (RI) strains are useful in linkage analysis and gene mapping. The currently available statistical tests of linkage using data derived from the study of RI strains, including a previous Bayesian analysis, have not been stringent enough guides for conclusions about linkage. In this paper, the probability of linkage was estimated using Bayes'
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12. Application of Bayes' theorem to the diagnosis of ankylosing spondylitis from radioisotope bone scans.
The ratio of the uptake of radioactivity in each sacroiliac joint to the uptake in the sacrum has been measured in 57 patients with early ankylosing spondylitis and in 51 control subjects. The distribution of ratios of uptake obtained in each of these two groups shows appreciable overlap, and it is shown that the specification of a 'normal range' in this sor