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Algorithms for non-parametric classifiers in multi-relational data mining
(2006)
Over the last decades, due to the advances in information technologies, both the industrial and scientific communities have acquired large volumes of data in digital form. Most of these data sets are stored using relational ...
Implementación de una librería orientada a objeto para matrices esparcidas en paralelo
(2007)
Al buscar la solución matemática en muchos de los problemas científicos, se ven involucradas matrices de dimensiones altas y cuyos elementos distintos de cero son pocos comparados con el orden de la matriz, estas matrices ...
Uso de técnicas de clasificación en conglomerados para describir perfiles en grandes bases de datos educativas
(2004)
This thesis describes the procedures used to identify the natural clusters formed by the students from Calculus that participated in the Quiz Project of the Mathematics Department at the University of Puerto Rico Mayagüez ...
The use of backpropagating neural networks in coordination with logistic spline coefficients to obtain the change-point
(2006)
This work presents an algorithm that uses backpropagating neural networks and their ability to find logistic regression coefficients as a useful tool that may outperform other conventional methods for finding the change-point ...
Unsupervised classification of text documents
(2007)
The automatic extraction of knowledge from very large document collections is becoming an important issue in order to exploit the increasing available information stored in text form. A significant aspect of this extraction ...
Simulation de la distorsión atmosférica en un frente de onda electromagnética
(2005)
We describe the implementation of two methods, proposed by Harding et al. [2] and Lane et al. [5], for simulating the effects of atmospheric turbulence on the phase of wavefronts of light. The results of the simulation ...
A computational environment for data preprocessing in supervised classification
(2004)
In this thesis, a data preprocessing environment has been created, for use in a supervised classification context, with the Windows platform of the R programming language and environment for statistical computing and ...
Juegos dinámicos de persecución y evasión
(2007)
Pursuit-Evasion games settle the foundations for Dynamic Games, a very active area in these days due to its great applicative potential. The Hamstrung Squad Car and the Homicidal Chaffeur are two zero-sum, two-player ...
Tournament matrices: Survey and new results
(2007)
Tournament are simple and complete direct graph. In this thesis we survey and study particular casa of tournament. Since the famous Seven bridges problem, which was analyzed by Leonard Euler in 1736 and stimulated the ...
Modelo de simulación y visualización del proceso de mezclas ultrasónico para la producción de biodiésel
(2004)
Biodiesel is an “environmental” and renewable alternative to fuel diesel engines. In the production process of Biodiesel, it is necessary to mix inmiscible oils and alcohols. This production process needs fast, effective ...