UPRM Digital Institutional Repository
The Digital Institutional Repository at the University of Puerto Rico in Mayaguez—DiRe.UPRM—is a central, digital data storage site for the scientific and creative work of the university. The DSpace platform provides access to documents in different formats created by university faculty and students. The purpose is to share and promote the UPRM’s intellectual production, enhance the institution’s prestige locally and internationally, project the university system, and provide open access to knowledge.
Communities in UPRM DIRe
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Generalizaciones de minimos cuadrados parciales con aplicación en clasificacion supervisada
(2004)The development of technologies such as microarrays has generated a large amount of data. The main characteristic of this kind of data it is the large number of predictors (genes) and few observations (experiments). Thus, ... 
An objectoriented framework for hpadaptive discontinuous galerkin methods
(2006)In this work, we consider second order elliptic problems arising in the modeling of single phase flows in porous media in 2D and in the analysis of transverse electromagnetic modes in wave guides using a discontinuous ... 
An informationbased complexity approach to acoustic linear stochastic timevariant systems
(2013)This thesis describes the formulation of a Computational Signal Processing (CSP) modeling framework for the analysis of underwater acoustic signals used in the search, detection, estimation, and tracking (SDET) operations ... 
A formal approach to protocol offload for web servers
(2009)The use of networks as computational tools has been fundamental in Com puter Information Science and Engineering research. As computers have evolved, the demands for faster data transmission have incremented. Protocol ... 
Unsupervised unmixing analysis based on multiscale representation
(2013)Unsupervised unmixing analysis aims to extract the basic materials, the so called endmembers, and their abundances from a hyperspectral image. Unmixing is usually performed by pixelsonly techniques that do not take into ... 
A framework for ranking data sources and query processing sites in database middleware systems
(2009)This dissertation presents a novel approach to the problem of _nding the characteristics of the data sources and query processing sites in a distributed database system. We model the network as a graph with nodes representing ... 
Mathematical modeling and finite element computation of cosserat elastic plates
(2013)In this dissertation the mathematical modeling of Cosserat elastic plates and their Finite Element computation are presented. The mathematical model for bending of Cosserat elastic plates, which assumes physically and ... 
Contributions to parallel and distributed computing in knowledge discovery and data mining
(2006)Recently databases are increasing continuously without bound, due to new data acquisition technologies. One challenge is how to gain knowledge from these large data sets. In this thesis, we analyze and improve the algorithmic ... 
A neocortexbased model for pattern recognition
(2014)The information society needs to process massive volumes of data in automated ways. The data is more meaningful if it is considered as sequences of patterns rather than isolated patterns. A trained human brain has outstanding ... 
Double periodic arrays with applications
(2010)Algebraic constructions of families of double periodic arrays with good autoand crosscorrelation have been used for applications in frequency hopping radar and sonar, Optical Code Division Multiple Access, design of ... 
On some algorithms for reverse engineering certain finite dynamical systems
(2005)There are two general problems related to finite dynamical systems (FDS): the analysis and the synthesis (also known as the reverse engineering) problems. In the former, we are interested in uncovering the sequential ... 
A framework for pervasively shared situational awareness in mobile ad hoc environments
(2009)This dissertation presents a novel approach to sharing situational awareness among a group of geographically dispersed mobile networked devices. We divide our efforts into two parts: getting the information to the right ... 
Adaptive orchestration of resources in distributed wide area large scale infrastructures
(2009)The goal of this thesis is to take a step to understanding the resource management of massively and scattered distributed systems. A framework to predict grid resources behavior and leverage the execution of long running ... 
Local alignment on highly unbalanced dna sequence lengths by reducing search space
(2016)DNA local sequence alignments provide biological insights that can help scientists identify genetic diseases, map newly obtained sequences to known genomes, or identify common genomic patterns on same species. Even when ... 
Unsupervised unmixing of hyperspectral imagery using the constrained positive matrix factorization
(2007)In hyperspectral imaging, hundreds of images are taken at narrow and contiguous spectral bands providing us with high spectral resolution spectral signatures that can be used to discriminate between objects. In many ... 
An adaptive spectrally weighted structure tensor applied to tensor anisotropic nonlinear diffusion for hyperspectral images
(2012)The structure tensor for vector valued images is most often defined as the average of the scalar structure tensors in each band. The problem with this definition is the assumption that all bands provide the same amount ... 
Spatially adaptive constrained non negative matrix factorization for hyperspectral unmixing
(2014)This dissertation proposes a spatially adaptive constrained Nonnegative Matrix Factorization (sacNMF) for unmixing of hyperspectral imagery. The image is decomposed into spectrally homogeneous regions using quadtree region ... 
Métodos para mejorar la calidad de un conjunto de datos para descubrir conocimiento
(2007)Today, data generation is growing exponentially in both directions; instances (rows) and features (columns). This causes that many datasets can not be analyzed without preprocessing. The large size of the dataset to be ... 
Highlevel partitioning of discrete signal transforms for distributed hardware architectures
(2007)Discrete signal transforms (DSTs) have numerous applications in a wide spectrum of scientific fields. To attain superior performance, the size and composition of these algorithms frequently require implementation to ... 
Geometric scalespace framework for the analysis of hyperspectral imagery
(2007)This work introduces a framework for a fast and algorithmically scalable multiscale representation and segmentation of hyperspectral imagery. The framework is based on the scalespace representation generated by geometric ...