Functions Of Several Real Variables
Mostrando 1-5 de 5 artigos, teses e dissertações.
-
1. Lagrange multipliers : geometrical and algebraic aspects and an application in chemical engineering in the methanol distillation / Multiplicadores de Lagrange : aspectos geometricos e algebricos e uma aplicação em engenharia quimica na destilação do metanol
This work begins with a brief historical overview of Fermat?s method to find maxima and minima without derivatives. In theoretical terms, the elements concerning maximum and minimum of functions of n variables are discussed, together with a detailed study of unconstrained optimization, focusing on the Fermat?s rule and the classification of critical points.
Publicado em: 2008
-
2. Otimização de colunas de destilação : uma abordagem aplicada dos multiplicadores de Lagrange / Optimization of distillation comumns : an applied approach of the Lagrange multipliers
This work tackles the optimization of a distillation process of a binary mixture in a column with plates, which came from the methanol distillation in the production process of the biodiesel. More specifically, it considers the minimization of a cost objective function that encompass the heat rate supplied to the reboiler and the feed temperature, subject to
Publicado em: 2008
-
3. Feature selection and intrinsically multivariate prediction in gene regulatory networks identification / Seleção de características e predição intrinsecamente multivariada em identificação de redes de regulação gênica
Feature selection is a crucial topic in pattern recognition applications, especially in bioinformatics, where problems usually involve data with a large number of variables and small number of observations. The present work addresses feature selection aspects in the problem of gene regulatory network identification from expression profiles. Particularly, we
Publicado em: 2008
-
4. Dissimilarity fuctions analysis based on dynamic clustering for symbolic data
Symbolic Data Analysis (SDA) is a new domain in the area of knowledge discovery that aims to provide suitable methods for data described through multi-valued variables, where there are sets of categories, intervals, or weight (probability) distributions in the cells of the data tables. These new variables enable representing the variability and uncertainty p
Publicado em: 2005
-
5. Regressão logística uma estimativa Bayesiana aplicada na identificação de fatores de risco para HIV, em doadores de sangue.
Logistic regression has application in several fields as epidemiology, medical research, banks, market research and social research. One of its advantages is that the interpretation of the measure is possible through the " Odds Ratios (OR), that are functions of the parameters of the model. In this study the binary regression model was used, with the objecti
Publicado em: 2004