Classication
Mostrando 1-12 de 15 artigos, teses e dissertações.
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1. IDENTIFICAÇÃO DE ATRIBUTOS RELEVANTES EM SEQUÊNCIAS DE PROTEASE E TRANSCRIPTASE REVERSA DO VÍRUS HIV PARA A PREDIÇÃO DA RESPOSTA DE PACIENTES AO TRATAMENTO COM DROGAS ANTIRRETROVIRAIS / IDENTIFICAÇÃO DE ATRIBUTOS RELEVANTES EM SEQUÊNCIAS DE PROTEASE E TRANSCRIPTASE REVERSA DO VÍRUS HIV PARA A PREDIÇÃO DA RESPOSTA DE PACIENTES AO TRATAMENTO COM DROGAS ANTIRRETROVIRAIS
O vírus da Imunodeciência Humana é um retrovirus que ataca principalmente o sistema imunológico humano, reduzindo progressivamente a sua ecácia. Combinações de drogas antirretrovirais são utilizadas no tratamento da infecção por HIV, contudo, as altas taxas de mutação nesse vírus podem desencadear fenótipos virais resistentes a alguns antirretr
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 09/02/2012
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2. Reconhecimento de ações com histogramas de características visuais e contexto adicionado por tranferência de aprendizagem
This thesis addresses the task of recognizing human actions in realistic videos based on their visual content. Such an ability has a wide variety of applications in specic settings, but this work is above all motivated by the idea that efective visual descriptors and models need to be provided in order to make current search engines better able to cope with
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 30/09/2011
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3. Um estudo sobre reconhecimento de padrões: um aprendizado supervisionado com classificador bayesiano / A study on pattern recognition: supervised learning with a Bayesian classier
The facility we have to recognize a face, to understand spoken words, reading manuscripts, identifying car keys in our pocket and deciding whether an apple is ripe by its smell, belie the complex processes that are behind the act to recognize these patterns. These recognitions have been crucial to our survival, and over the past tens of millions of years sop
Publicado em: 2011
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4. Annotating data to support decision-making: a case study.
Georeferenced data are a key factor in many decision-making systems. However, their interpretation is user and context dependent so that, for each situation, data analysts have to interpret them, a time-consuming task. One approach to alleviate this task, is the use of semantic annotations to store the produced information. Annotating data is however hard to
WORKSHOP ON GEOGRAPHIC INFORMATION RETRIEVAL. Publicado em: 2011
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5. Reduced genetic variability within coding and non-coding regions of the echinococcus multilocularis genome
Echinococcus multilocularis, a vulpine intestinal tapeworm, is the causative agent of alveolar echinococosis in humans, one of the most severe and lethal parasitic infections in man. To date, there is very little knowledge about the genetical polymorphism of this parasite. To assess sequence polymorphism, we analysed a sample of 33 E. multilocularis isolates
Publicado em: 2011
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6. O uso de quase U-estatísticas para séries temporais uni e multivaridas / The use of quasi U-statistics for univariate and multivariate time series
Classifcation and clustering of time series are problems widely explored in the current literature. Many techniques are presented to solve these problems. However, the necessary restrictions in general, make the procedures specific and applicable only to a certain class of time series. Moreover, many of these approaches are empirical. We present methods for
Publicado em: 2011
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7. Geração de Regras de Decisão Fuzzy Utilizando a Teoria dos Rough Sets
Este trabalho propõe um novo método para gerar automaticamente regras fuzzy baseado na teoria dos rough sets e na teoria dos conjuntos fuzzy. As regras derivadas são concisas em relação ao número de termos antecedentes e apresentam alta taxa de cobertura. O sistema de classicação baseado nestas regras fuzzy foi adaptado para discriminar entre a possi
Publicado em: 2009
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8. classification of surfaces of revolution type complete Delaunay / Classificação das superfícies de revolução tipo Delaunay completas
In this dissertation we have studied the articles The Surfaces of Delaunay, by James Eells, and Classication des Surfaces de Type Delaunay, by Ricardo Sa Earp and Eric Toubiana. Based on the rst work we have classied the surfaces of revolution of constant mean curvature known as surfaces of Delaunay. By using the second one we have looked at special surfaces
Publicado em: 2008
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9. classification of surfaces of revolution type complete Delaunay / Classificação das superfícies de revolução tipo Delaunay completas
In this dissertation we have studied the articles The Surfaces of Delaunay, by James Eells, and Classication des Surfaces de Type Delaunay, by Ricardo Sa Earp and Eric Toubiana. Based on the rst work we have classied the surfaces of revolution of constant mean curvature known as surfaces of Delaunay. By using the second one we have looked at special surfaces
Publicado em: 2008
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10. Classicação de Regiões de Mamografias em Massa e Não Massa usando Estatistica Espacial e Máquina de Vetores de Suporte / Classification of Regions, in the Mamogra Mass and not using statistical Mass Space and Support Vector Machine
Breast cancer is a serious public health problem in several countries of the world. Computer-Aided Detection/Diagnosis systems (CAD/CADx) have been used with relative success in aid to health care professionals. The main contribution of this work is to present a methodology to discriminate and classify mammogram regions in mass and non-mass through spatial s
Publicado em: 2008
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11. Utilização de máquinas de suporte vetorial para predição de estruturas terciárias de proteínas / Support vector machine for tertiary structure prediction
The three-dimensional structure of a protein is directly related to its function. Many projects of genetic sequence analysis accumulate a great number of protein sequences whose primary and secondary structures are known. However, the information on its three-dimensional structures are available only for a small fraction of these proteins. This fact evidence
Publicado em: 2007
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12. Discrete Geometry and Codes / Geometria discreta e codigos
The research developed here is related and inspired by problems in coding theory. It is presented in two parts. In the ?rst we focus on the search for the minimum nonvanishing vector of a lattice, specially in the case of a projection of the ndimensional integer lattice in the direction of one of its vectors. This is a problem of high computational complexit
Publicado em: 2007