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Generación de reglas estadísticas a partir de grandes bases de datos
Generación de reglas estadísticas a partir de grandes bases de datos
(2009-02-18)
Given a set of categorical variables, we want to predict one or more of them by the way rules. We propose an algorithm that (i) is guided by statistical results in a relational geometry where we use assymetrical association ...
Funciones periódicas, cuasiperiódicas y clasificación de funciones
Funciones periódicas, cuasiperiódicas y clasificación de funciones
(2009-02-18)
In this work we present some significative sets of functions. Following the ideas of [2] we introduce the almost periodic functions and its elementary properties. Based in [12] we give a clasification of the sets.
Estudio crítico del modelo de Manly-Parr
Estudio crítico del modelo de Manly-Parr
(2009-02-18)
Manly and Parr in 1968 obtain a model which give an estimation of the parameters of an animal population. The model presents some weakness on the specifications of the class of individual in the population. In the present ...
Modelos minimales de la recta hiperreal
Modelos minimales de la recta hiperreal
(2009-02-18)
A new proof of the existence of minimal models of the hiperreal line is obtained in terms of a combinatorial property of Ramsey ultrafilters over a countable set.
Equilibrio walrasiano en economías de intercambio
Equilibrio walrasiano en economías de intercambio
(2009-02-18)
We present the aggregated excess demand functions in an exchange economy. We study the properties and the equilibrium price vector of the aggregated excess demand functions. We prove that the walrasian equilibrium is a ...
Particiones óptimas: características y calidad de sus aproximaciones
Particiones óptimas: características y calidad de sus aproximaciones
(2009-02-18)
In the part, we present a factorial approach for clustering following the least squares criterion, for every choice of the metrics in the individual space. We deduce that the between-clusters inertia has an upper bound ...
Análisis de tablas múltiples de datos
Análisis de tablas múltiples de datos
(2009-02-18)
Two methods for analyzing multiple data tables of the French Data Analysis school are presented: the Statis method and Multiple Factor Analysis. The types of data that can be trated by each methodology area analyzed and ...
Algunas consideraciones sobre el modelo lineal multivariado
Algunas consideraciones sobre el modelo lineal multivariado
(2009-02-18)
We consider the general linear model with the classical hypothesis. In particular we consider the variance analysis in two factors and we give explicitly the forms of the associated matrixes as well as the statistics of ...
Uso de integración según Gauss para calcular la fotosíntesis en modelos de Simulación de Crecimiento de Cultivos.
(2012-03-21)
Tres modelos dinámicos y explicativos para calcular la fotosíntesis de cultivos son comparados. Los modelos difieren en la forma de integrar numéricamente la fotosíntesis sobre el tiempo y el dosel: el modelo de Euler usa ...
Lobachevski descubridor de la Geometría Hiperbólica
Lobachevski descubridor de la Geometría Hiperbólica
(2012-03-21)
We offer an overview of the geometric studies of the russian mathematician N.I. Lobachevski (1792?1856), which culminated with the discovery of the hyperbolic geometry. We analize the role of the V Postulate in the euclidean ...