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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 ...
Un algoritmo paralelo para el problema del conjunto independiente
(2009-02-19)
Un conjunto S de vértices de una gráfica G es independiente si no existen dos vértices de S que sean adyacentes, esto es, la subgráfica de G inducida por S no tiene aristas. En este trabajo presentaremos un algoritmo ...
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 ...
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 ...
Preference structures, choice functions and their logical form
Preference structures, choice functions and their logical form
(2009-02-20)
Binary relations and choice functions are two different tools for describing DMpreferences on a finite set of alternatives. Normal choice functions are the link betweenthese two tools. These choice functions are easily ...
El análisis multivariado de datos como herramienta en la exploración de modelos en la comprensión de variables psicológicas
El análisis multivariado de datos como herramienta en la exploración de modelos en la comprensión de variables psicológicas
(2012-04-26)
Psychology, as a behavioral science in a preparadigmathic state, needs the support of theoretical models that validate the constructs that it uses for explaining the phenomena it studies. For sustaining the advances in the ...
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 ...
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 ...
Regresión y análisis factoriales
Regresión y análisis factoriales
(2009-02-19)
Some recent developments in factor analysis of multi-sets are introduced in this short course. The more usual factor analyses are based on the singular values de-composition. So, the analyses of two matrices here are ...