Hierarchical Modelling
Mostrando 1-11 de 11 artigos, teses e dissertações.
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1. Bird movement patterns in a fragmented landscape and their effects to functional connectivity: an hierarchical approach / Padrões de movimentação de uma espécie de ave em paisagens fragmentadas e seus efeitos para a conectividade funcional: uma abordagem hierárquica
Habitat fragmentation is one of the major human impacts on terrestrial ecosystems. This process highly affects the species movement pattern, implying in considerable alterations on the connectivity between the remaining habitat patches. Consequently, it interferes in the spatial distribution and in the population dynamics of species. In this dissertation, so
Publicado em: 2009
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2. Drug utilization studies in children in the City of Salvador: factors determining analysis. / Estudos de utilização de medicamentos em crianças na cidade de Salvador: análise de fatores determinantes.
Background: The excessive and inadequate use of medicines in children has been evidenced in studies several developed at countries several. Little is known on the prevalence of consumption of medicines in children in Brazil. Objectives: To describe the use of drugs and to examine the factors that influence utilization in the population pediatric in Salvador,
Publicado em: 2008
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3. MODELOS NEURO-FUZZY HIERÁRQUICOS BSP DO TIPO 2 / TYPE-2 HIERARCHICAL NEURO-FUZZY BSP MODEL
The objective of this thesis is to create a new type-2 fuzzy inference system for the treatment of uncertainties with automatic learning and that provides an interval of confidence for its defuzzified output through the calculation of corresponding type-reduced sets. In order to attain this objective, this new model combines the paradigms of the modelling of
Publicado em: 2007
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4. Hierarchical modelling for the heat equation in a heterogeneous / Modelagem hierárquica para a equação do calor em uma placa heterogênea
Neste trabalho, estudamos a equação do calor estacionária em uma placa heterogênea tridimensional. Para a modelagem deste problema, utilizamos uma técnica de redução de dimensão conhecida por Modelagem Hierárquica. Desta forma, geramos um modelo para o problema original em um domínio bidimensional. Com o objetivo de estimar o erro de modelagem, des
Publicado em: 2006
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5. Análise e modelagem de tráfego de vídeo hierárquica
This document has the main goal to introduce a hierarchical video traffic modelling. The modelling results had been analyzed in comparison to the random and self-similar processes. Statistical information data had been collected from video trace files analyses. The statistical analyses introduce information related to random process and self-similar processe
Publicado em: 2005
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6. Spatio-temporal hierarchical modelling of the coffee berry borer (Hypothenemus hampei Ferrari) dispersion in colombia. / Modelagem da distribuição espaço-temporal da broca do café (Hypothenemus hampaei Ferrari) em uma cultura da região central colombiana.
Study of agricultural pests distribution in space and time provides important information about the species dispersion mechanisms and its interaction with environmental factors. It also helps the development of sampling plans, the integrated pest management and planning of experiments. The aim of this work was to compare several hierarchical models in modell
Publicado em: 2002
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7. Sistemas hierarquicos multiniveis em automação e controle
Large-scale systems are often characterized by hierarchical structures, and they usually have multiple objectives that may be conflicting. The modelling of large-scale systems is normally a dificult task and of using the theory of integrated, hierarchical large-scale multilevel complex solution. This study system analysis methodology, aims at providing an sy
Publicado em: 1990
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8. Small area mapping of prostate cancer incidence in New York State (USA) using fully Bayesian hierarchical modelling
BioMed Central.
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9. Mixtures of Polya trees for flexible spatial frailty survival modelling
Mixtures of Polya trees offer a very flexible nonparametric approach for modelling time-to-event data. Many such settings also feature spatial association that requires further sophistication, either at the point level or at the lattice level. In this paper, we combine these two aspects within three competing survival models, obtaining a data analytic approa
Oxford University Press.
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10. Determinants of all causes of death in samples of Italian middle-aged men followed up for 25 years.
A total of 1712 men aged 40 to 59 years in two rural cohorts of northern and central Italy have been followed up for 25 years after an entry examination in 1960. Forty one individual characteristics have been considered as possible predictors of death in the next 25 years. After exclusion of 55 men with life threatening diseases (cardiovascular and cancer) a
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11. Fibrosis and other histological features in chronic hepatitis C virus infection: a statistical model.
AIMS: To study the inter-relation between hepatic fibrosis and other histological features of chronic hepatitis C virus (HCV) infection. METHODS: Liver biopsy specimens from 200 consecutive patients with chronic HCV infection were graded and staged separately for necro-inflammatory activity and for fibrosis. The interaction between fibrosis and other histolo