Now showing items 124-143 of 314

• #### Fitting non-gaussian Models to Financial data: An Empirical Study ﻿

(2011-04-29)
In this paper are presented some experiences about the modeling of financial data by three classes of models as alternative to Gaussian Linear models. Dynamic Volatility, Stable L'evy and Diffusion with Jumps models are ...
• #### Formalización de una teoría de la mentalidad ﻿

(2009-02-20)
We introduce a model based in Game Theory, and those used primarily in biology(evolutionary games) to understand history. We are interested in use the model tounderstand the last years of the colony of Costa Rica. We proved ...
• #### Fourier coefficientes computation in two variables, a distributional version ﻿

(2015-01-01)
The present article, by considering the distributional summations of Euler-Maclaurin and a suitable choice of the distribution, results in repre- sentations for the Fourier coefficients in two variables are obtained. These ...
• #### Fórmulas aproximadas del tipo Lévy-Khintchine ﻿

(2009-02-19)
The problem of approximation of the characteristic functions defined by a PII in near intervals is studied. We establish some general properties of these functions and of the associated complex matingales, which, with the ...
• #### 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.
• #### Funciones regulares en el plano y operadores de Nemytskii ﻿

(2014-01-01)
En este artículo mostramos que el espacio de las llamadas funciones regularizadas definidas sobre algún rectángulo del plano es un espacio de Banach. Más aún, bajo las hipótesis adecuadas damos condición necesaria ...
• #### Fuzzy Regression VS. Ordinary Least Squares Regression: Case Study ﻿

(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 ...
• #### 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, ...
• #### 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 ...
• #### Generadores de números primos y factorizadores de números compuestos ﻿

(2009-02-20)
The sequence of natural numbers presents itself as a multidimensional array. Twoproblems are solved on the basis of these arrays:a) distribution of prime numbers in multidimensional array,b) factoring of composite numbers.For ...
• #### General guidelines solution for linear programming with fuzzy coefficients ﻿

(2013-08-29)
This work introduce to the Possibilistic Programming and the Fuzzy Programming as paradigms that allow to resolve problems of linear programming when the coefficients of the model or the restrictions on the same are presented ...
• #### Generalización a Rn de algunos métodos de interpolación conocidos en ecuaciones diferenciales ﻿

(2009-02-18)
We present the Runge-Kutta methods of several one-step levels in Rn , as well as algorithms in pseudo-code for the implicit and explicit methods. We study the problem of error control in Rn and we give numerical examples ...
• #### Generalización de dos métodos de detección de conglomerados. Aplicaciones en bioinformática. ﻿

(2009-02-25)
This paper presents a modification to the temporal disease clusters methods inorder to apply them to other sciences. Particular specifications are shown in Scanand temporal Grimson techniques. The original data are transformed ...
• #### Generalization of Rakotch's fixed Point Theorem ﻿

(2011-04-29)
In this paper we get some generalizations of Rakotch's results [10] using the notion of $\omega ?distancia$ on a metric space
• #### GEODESIC DISTRIBUTION IN GRAPH THEORY: KULLBACK-LEIBLER-SYMMETRIC ﻿

(2014-07-01)
Kullback-Leibler information allow us to characterize a family of dis- tributions denominated Kullback-Leibler-Symmetric, which are distance functions and, under some restrictions, generate the Jensen’s equality shown by ...
• #### Geostatistical Spatio-Time model of crime in el Salvador: Structural and Predictive Analysis ﻿

(2011-07-26)
Today, to study a geospatial and spatio-temporal phenomena requires searching statistical tools that enable the analysis of the dependency of space, time and interactions. The science that studies this kind of subjects is ...
• #### GNM-NIPALS: general nonmetric-nonlinear estimation by iterative partial least squares ﻿

(2014-04-03)
This paper develops GNM-NIPALS as an extension of the NM-PLS methods, which allows to quantify the qualitative variables of mixed data, by means of the reconstitution function using the first k principal com- ponents, ...
• #### Goal problems in gambling theory ﻿

(2009-02-18)
A short introduction to goal problems in abstract gambling theory is given, along with statementes of some of the main theorems and a number of examples, open problems and references. Emphasis is on the finite-state, ...
• #### Grafos destinados al Análisis de datos Multivariante Condicionado por su Estructura ﻿

(2012-04-26)
We present two new methods for the construction of graphs that can be used with descriptive techniques of Multivariate Data Analysis: a graph based in the chi-square distance and a graph based in strongly-connected components. ...
• #### Graph dominance by rook domains for Znp and Zn3 × Zm2 graphs ﻿

(2009-02-20)
Described within is the problem of finding near-minimum dominating subsets of agiven graph by rook domains. Specifically, we study the graphs of the kind ZnpandZn3×Zm2and introduce a simulated annealing algorithm to compute ...