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Algoritmos para la clasificación piramidal simbólica
(2009-02-19)
En este artículo se define el concepto de pirámide simbólica, además se presentan dos algoritmos para generar este tipo d pirámide a partir de una matriz de datos simbólicos. El primer algoritmo (CAPS) encuentra un "orden ...
An Introduction to Symbolic data Analysis and its Application to the Sodas Project
An Introduction to Symbolic data Analysis and its Application to the Sodas Project
(2012-04-12)
The data descriptions of the units are called "symbolic" when they are more complex than the standard ones due to the fact that they contain internal variation and are structured. Symbolic data happen from many sources, ...
Dynamics of a two-dimensional discrete-time SIS model
Dynamics of a two-dimensional discrete-time SIS model
(2012-04-26)
We analyze a two-dimensional discrete-time SIS model with a non-constant total population. Our goal is to determine the interaction between the total population, the susceptible class and the infective class, and the ...
Generación de métricas en análisis de datos
(2009-02-20)
In this work we introduce primary generators of metrics, that consist of linearcombinations of known metrics. We establish some theoretical properties of these generators,related to the computation of principal components, ...
Asignación óptima de recursos
Asignación óptima de recursos
(2009-02-18)
This work is on optimal assignation of resources. The proposed model is based on Net Flow Theory and here we give some indications for an efficient implementation of the model.
Sobre la convexidad de la función de presión en el problema de la filtración no lineal
Sobre la convexidad de la función de presión en el problema de la filtración no lineal
(2009-02-18)
We prove the convexity of the pressure function v for the isotropic ideal gaz flow, based on the theorem about the zeros of the solution of the parabolic equation (1)Keywords: fluid mechanics, turbulence, parabolic equation
La teoría de respuesta a los itemes: una moderna alternativa para el análisis psicométrico de instrumentos de medición
(2009-02-19)
La Teoría de Respuesta a los Itemes, TRI, (o "Item Response Theory", en inglés) es un enfoque más poderoso que la Teoría Clásica de los Tests para el análisis de calidad técnica de instrumentos de medición psicométricos. ...
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 ...
On the Distribution of non-attacking Bishops on a Chessboard C
On the Distribution of non-attacking Bishops on a Chessboard C
(2012-04-26)
It is shown how the placement of non-attacking bishops on a chessboard C is related to the matching polynomial of a bipartite graph. Reduction algorithms for finding the bishop polynomial of C are given. We interpret ...
Análisis de proximidades métrico usando búsqueda tabú
Análisis de proximidades métrico usando búsqueda tabú
(2009-02-19)
We apply tabu search (TS) in metric multidimensional scaling, obtaining good results comparable to those obtained with simulated annealing. A state in TS is a configuration of n points in a p dimensional space, and a ...