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Algoritmo de Karmarkar y matrices ralas
Algoritmo de Karmarkar y matrices ralas
(2009-02-18)
This is the second of a series of two articles en which we study the Karmarkar’s method. In this article we are going to show how can we use sparse matrix theory to get an efficient implementation of the Karmarkar’s process ...
De la fórmula de sumación de Poisson a los teoremas de muestreo y reconstrucción
(2012-03-22)
Los radioastrónomos miden la visibilidad de una fuente luminosa para determinar la cantidad de luz emitida y su distribución, bajo el principio que esta es la transformada de Fourier de la visibilidad. En la teoría de la ...
El nuevo orden mundial y el Consejo de Seguridad de las Naciones Unidas
El nuevo orden mundial y el Consejo de Seguridad de las Naciones Unidas
(2009-02-18)
The quota power of UN Security Council members are analysed from a mathematical point of view, using Game Theory. Results are generalized and applied to the current situation. Some recommendations are stated about the ...
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 ...
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 ...
A Hybrid Random Number Generator(HRNG)
Un Generador Híbrido de Números Aleatorios
(2011-07-29)
The purpose of this paper is to present a novel Hybrid Random Number Generator (HRNG). Here “hybrid” refers to the fact that to construct this generator it is necessary to use 1)physical components – texts – and a physical ...
Sensor Fusion Using Entropic measures of Dependence
Fusión Sensorial usando medidas Entrópicas de Dependencia
(2011-07-26)
As opposed to standard methods of association which rely on measures of central dispersion, entropic measures quantify multivalued relations. This distinction is especially important when high fidelity models of the sensed ...
Preference of effective Factors in suitable selection of Microtunnel boring machines (mtbm) by using the fuzzy analytic hierarchy process (fahp) approach
Preferencia de Factores de Efectividad en la Selección Apropiada de Máquinas Taladradoras de Microtúnel (MTBM) Usando el Enfoque del Proceso Jerárquico Analítico Difuso (FACH)
(2011-07-08)
The development of underground infrastructure, environmental concerns, and economic trend is influencing society. Due to the increasingly critical nature of installations of utility systems especially in congested areas, ...
Regresion PLS y PCA como Solucion al Problema de Multicolinealidad en Regresion Multiple
Regresion PLS y PCA Como Solución al Problema de Multicolinealidad en Regresion Multiple
(2011-03-18)
We present and compare principal components regression and partial least squares regression, and their solution to the problem of multicollinearity. We illustrate the use of both techniques, and demonstrate the superiority ...
Fuzzy Regression VS. Ordinary Least Squares Regression: Case Study
Regresión Borrosa VS. Regresión por Mínimos Cuadrados Ordinarios: Caso de Estudio
(2011-03-18)
The objective of this paper is to disseminate the technique of fuzzy regression and to give a practical example of its use. To this end, classical regression is compared to several fuzzy regression models on a problem ...