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Estimación de la proporción de una subpoblación oculta a través de muestreo por “bola de nieve” estratificado
(2008)
The inference process is inefficient when employing conventional sampling tech- niques to sample from hidden populations and those of difficult access. The method of sampling by reference or “Link-Tracing” (“Snowball ...
An estimate of the basic reproductive number, R0, for the 2015-2016 zika virus outbreak in Puerto Rico
(2018-05)
In recent years, vector-borne diseases are taking serious attention from researchers
and health specialist across the world. The emergence of vector-borne
diseases, such as Chikungunya and Zika, coupled with outbreaks ...
Clasificación noparamétrica en datos direccionales
(2004)
In a supervised classification problem, when the vectors of data are direction- al, it means, that they take values on a k-dimensional sphere, the application of the algorithms of pattern recognition as k-nearest-neighbour ...
Clasificadores por redes bayesianas
(2005)
A Bayesian network is a compact representation of joint probability function. Formally, a Bayesian network is an acyclic directed graph in which each node represents a random variable and the relationships of dependence ...
Estimación de tasas de transmisión para dos estereotipos de dengue con modelo matemático para las epidemias de los años 2010 y 2012 en Puerto Rico
(2014-08)
La fiebre del dengue es una enfermedad infecciosa propagada por mosquitos hembras infectados Aedes Aegypti. El virus está conformado por cuatro serotipos los cuales confieren inmunidad de por vida al serotipo infeccioso e ...
Análisis no paramético para la predicción de datos funcionales
(2013-06)
Los datos de alta dimensión y funcionales están ganando importancia en problemas de predicción debido a los avances técnicos que permiten su captura y tratamiento. Este tipo de datos aparecen frecuentemente en la Medicina ...
Comparación de modelos de regresión semiparamétricos mixtos con distribución beta
(2015-05)
Some studies generate data that are rates, proportions or probabilities, continuously restricted in the range (0, 1). The Beta regression allows to model this type of data and offers a number of advantages such as direct ...
Componentes principales y regresión logística: analizando el rendimiento académico de los estudiantes en matemática prebásica
(2011-05)
In this research we analyze the factors associated with the academic performance of students in the course of Pre-Basic Mathematics (I semester 2010-2011), from the information obtained through three questionnaires, applied ...
Estimación de densidades multivariadas en flujo de datos usando mezclas adaptativas de componentes gaussianas
(2012-06)
In the current world of science and technology the data arrive continuously over time, this type of data is called data stream and is impractical to store all of the data. The data mining and traditional techniques of ...
Ciclos económicos de Puerto Rico: uso de modelos y técnicas estadísticas multivariadas
(2010-05)
Economic cycles provide the best monthly economic indicators of a country, both on the long and short term scale. For this reason it is necessary that the cycles model the economy to the most optimal degree possible. This ...