Stepwise Discriminant Analysis
Mostrando 1-12 de 26 artigos, teses e dissertações.
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1. Prediction of apparent metabolizable energy and metabolizable energy corrected for nitrogen of corn according to physical classification of the grain
ABSTRACT The objective of this study was to develop an equation to determine the apparent metabolizable energy (AME) and metabolizable energy corrected for nitrogen balance (AMEn) using a physical-based classification of corn. A total of 5,055 samples were taken from bulk cargo trucks, over a five-year period. The parameters studied were the variables relate
R. Bras. Zootec.. Publicado em: 30/07/2018
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2. 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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3. PHYTOSOCIOLOGY OF THE ARBOREAL COMMUNITIES IN SAVANNAS FROM CENTRAL BRAZIL / FITOSSOCIOLOGIA DE COMUNIDADES ARBÓREAS EM SAVANAS DO BRASIL CENTRAL
Estes estudos foram desenvolvidos no estado de Mato Grosso, Brasil, na região de Chapada dos Guimarães e Baixada Cuiabana, que compreendem, respectivamente, um alto platô e uma grande planície baixa, restringindo-se a duas áreas cobertas por vegetação com fisionomia savânica do tipo Cerrado stricto sensu. Partindo-se da hipótese de que o conheciment
Publicado em: 2008
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4. "Planejamento de quinonas com atividade tripanossomicida" / Planning of quinone compounds with trypanocidal activity
A set of 25 quinone compounds with anti-trypanocidal activity was studied by using the Density Functional Theory (DFT) method in order to calculate electronic atomic and molecular properties to be correlated with the biological activity. The chemometric methods Principal Component Analysis (PCA), Hierarchical Cluster Analysis (HCA), Stepwise Discriminant Ana
Publicado em: 2007
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5. Bankruptcy prediction in brazilian companies with discriminant analysis, logistic regression and artificial neural networks / Previsão de insolvência de empresas brasileiras usando análise discriminante, regressão logística e redes neurais
Estudos com o objetivo de prever insolvência de empresas e que fazem uso de técnicas estatísticas modernas são conduzidos desde a década de 1960. Esta linha de pesquisa, que inicialmente usou técnicas univariadas, e em seguida incorporou as análises multivariadas, hoje emprega largamente técnicas que fazem uso de inteligência artificial e que necess
Publicado em: 2003
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6. Classificação e monitoramento fenológico foliar da cobertura vegetal na região da floresta Nacional do Tapajós - Pará, utilizando dados multitemporais do sensor "thematic mapper" (TM) do Landsat / Phenology foliar classification and monitoring the vegetation cover in the Tapajós National Forest region Pará State, utilization multitemporal data from Landsat Thematic Mapper (TM) sensor
The relative importance of accuracy in forest cover mapping is given by the necessity to obtain improvement in the elaboration of a management plan of natural resources and in the definition of priority areas for conservation, as well as in landscape analysis. Other aspect that has raised even more interest in the scientific community is concerned to modelin
Publicado em: 2002
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7. Avaliação do sexo por analise de função discriminante a partir de dimensões lineares do cranio
laughters, serial killers committed by psychos, tries in hiding cadavers and road catastrophes with dozen of dead people do that dayly legal medical exams are not enough for the identification of the victims. The craniofacial bone structures, well known as preservation capacity, are, a lot of times, the only way to extract identity informations, that has in
Publicado em: 2000
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8. Value of counting colonic mucosal Ig-containing cells in the differential diagnosis of chronic inflammatory bowel disease.
AIMS: To investigate whether counting cells containing immunoglobulin (Ig) subclass in colonic biopsy specimens of patients with chronic inflammatory bowel disease, in addition to conventional histological evaluation, can improve the differentiation of patients with Crohn's disease from those with ulcerative colitis. METHODS: The colonic and rectal biopsy sp
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9. Discriminant function analysis of factors related to myocardial infarction in male patients on antihypertensive therapy.
Records of 367 male patients who began attending the Dunedin Hospital Hypertension Clinic between 1959 and 1969 were coded up to the end of 1972. Of these patients, 60 had their first myocardial infarction, or sudden cardiac death without previous evidence of myocardial infarction, while they were attending the clinic. This infarct group was compared with a
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10. Immunohistochemical differentiation between primary adenocarcinomas of the ovary and ovarian metastases of colonic and breast origin. Comparison between a statistical and an intuitive approach.
AIM: To discriminate between adenocarcinomas that are primary to the ovary and metastatic to the ovary, especially of colonic and breast origin, by immunohistochemistry, using stepwise discriminant analysis or a decision tree. METHODS: 312 routinely processed, formalin fixed tissue specimens were used. The tumours were divided into a learning set (n = 159),
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11. Classification and identification of Flavobacterium species by carbon source utilization.
Carbon substrates used as the sole source of carbon and energy were tested for the classification and identification of species of Flavobacterium: Flavobacterium meningosepticum, F. breve, F. odoratum, F. multivorum, F. thalpophilum, and Flavobacterium sp. group IIb. Hierarchical classification and stepwise discriminant analysis revealed three F. meningosept
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12. Quantitation in inflammatory bowel disease using computerised interactive image analysis.
Objective measurements of various histological features in rectal biopsy material were made using computerised interactive image analysis. Analysis of the resulting data by forward stepwise discriminant analysis showed that biopsies from patients with ulcerative colitis and infective diarrhoea could be distinguished from each other and from normal biopsies;