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Geostatistical Spatio-Time model of crime in el Salvador: Structural and Predictive Analysis
Modelo Geoestadístico Espacio-Temporal del crimen en el Salvador: Análisis Estructural y Predictivo
(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 ...
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, ...
Análisis de tablas múltiples de datos
Análisis de tablas múltiples de datos
(2009-02-18)
Two methods for analyzing multiple data tables of the French Data Analysis school are presented: the Statis method and Multiple Factor Analysis. The types of data that can be trated by each methodology area analyzed and ...
Application of a cognitive model of emotional appraisal to the board evaluation function of a program that plays chess
Aplicación de un modelo cognitivo de valoración emotiva a la función de evaluación de tableros de un programa que juega ajedrez
(2012-07-01)
This paper describes the analysis and design of a cognitive emotional assesment model. This model is based on the goals looked for a chess player during a game. The model affects the output of the board evaluation function ...
Symmetry orbits and their data-analytic properties
Orbitas de simetría y sus propiedades en análisis de datos
(2013-08-29)
The concept of data indexed by finite symmetry orbits is reviewed within the data-analytic framework of symmetry studies. Data decompositions are discussed in terms of canonical projections and Plancherel’s formulas, and ...
Valores propios asociados al operador de Hill unidimensional. Caso general.
Valores propios asociados al operador de Hill unidimensional. Caso general.
(2009-02-25)
We study Hill’s equation with general boundary conditions and white noise potential.In [3] they solve the problem with Dirichlet conditions, leaving the general case unresolved.The problem is important both from the ...
Algoritmos Numéricos para el Problema de Restauración de Imágenes usando el Método de las Proyecciones Alternantes
Algoritmos Numéricos para el Problema de Restauración de Imágenes usando el Método de las Proyecciones Alternantes
(2011-04-29)
The projection algorithms have evolved from the alternating projection method proposed by J. von Neumann in 1933, who treated the problem of finding the projection of a given point in a Hilbert space onto the intersection ...
Algoritmos de punto fijo usando subdivisiones simpliciales
Algoritmos de punto fijo usando subdivisiones simpliciales
(2009-02-18)
In this paper we study an algorithm for approximating fixed points using simplicial subdivisions of the simplex. Furthermore, it is compared with algorithms of primitive sets.
The multiplicative products between the Distribution (P ± i0)^{\lambda} and the Operators L^r{\delta} and K^r{\delta}
The multiplicative products between the Distribution (P ± i0)^{\lambda} and the Operators L^r{\delta} and K^r{\delta}
(2012-03-29)
In this note we give a sense to some multiplicative products of distributions:i) (P ± i0)^{\lambda} . L^r {\delta}ii) (P± i0) ^{\lambda} . K^r{\delta }where (P ± i0)^{\lambda} is the distribution defined by the formula ...
Differentially closed fields of characteristic zero with a generic automorphism
Differentially closed fields of characteristic zero with a generic automorphism
(2009-02-25)
Hrushovski showed that the theory of difference-differential fields of characteristiczero has a model-companion, which we shall denote DCFA. We give an axiomatizationfor DCFA and prove some important model-theoretic results ...