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Presentación e implementación del método de nubes dinámicas difuso
(2009-02-18)
Se hace una presentación del método de Nubes Dinámicas Difuso considerando la variante del centro de gravedad (Forgy, 1965). La clasificación difusa obtenida se usa como herramienta de validación para establecer el número ...
Optimiza - un paquete computacional para la optimización de problemas no lineales
Optimiza - un paquete computacional para la optimización de problemas no lineales
(2009-02-18)
Our goal is to build a software able to solve problems in non linear optimization. A central point is selection of the algorithm, which is based on Augmented Lagrangian Method combined with quasi-Newton methods (BFGS, ...
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 ...
Definición de semiproductos escalares útiles en análisis de datos
Definición de semiproductos escalares útiles en análisis de datos
(2009-02-20)
We develop the theory necessary for Data Analysis with inner semiproducts, extendingtha classical concepts of inner products usually employed. For this, we usethe basic algebraic definitions of non degenerated bilinear ...
Convergence in nonlinear systems with a forcing term
(2009-02-18)
The problem of convergence, as t ® +¥ , of solutions of the system (1) is considered. It is assumed that the functions a , f and g are of class C1 for all values of their arguments, furtermore g' (x) > 0 , f ' (x) ³ r > ...
Detecting constraint redundancy in 0-1 linear programming problems
Detecting constraint redundancy in 0-1 linear programming problems
(2009-02-19)
In this paper we present a procedure for obtaining upper bounds on a linear function by means of certain families of packings, coverings and special ordered sets. We also present a new method for detecting redundant ...
A dichotomous property of the total variation of a process with independent increments
(2009-02-19)
We establish a property for the total variation of a cad-lag process with independent increments wich is dichotomous in the sense that only two alternatives are possible. For this purpose we introduce the methods of ...
Teoría de nudos geométricos e isotopía poligonal
Teoría de nudos geométricos e isotopía poligonal
(2009-02-19)
The space of n-sided polygons embedded in euclidean three-space consists of a smoothmanifold in which points correspond to piecewise linear or “geometric” knots, while pathscorrespond to isotopies which preserve the geometric ...
Un algoritmo para el entrenamiento de máquinas de vector soporte para regresión
Un algoritmo para el entrenamiento de máquinas de vector soporte para regresión
(2009-02-19)
The aim of the present paper is twofold. Firstly an introduction to the ideas of Support Vector regression is given. then a new and simple algorithm, suggested by the work of Campbell y Cristianini in [16], is proposed ...
Algoritmo e implementación del análisis factorial de correspondencias
Algoritmo e implementación del análisis factorial de correspondencias
(2009-02-18)
In this article, it is presented an algorithm in pseudo-code for the Factor Analysis of Correspondence. Some comments on the implementationn on C++ are also developed. Finally, the method is illustrated by an example.