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Some of the material in is restricted to members of the community. By logging in, you may be able to gain additional access to certain collections or items. If you have questions about access or logging in, please use the form on the Contact Page.
The task of protecting software integrity can be approached with a two-part strategy that addresses threats to the static integrity of memory contents and the dynamic integrity of software memory interactions. Although their resultant...
A specialized variation of associations for biodiversity data is defined and developed that makes the capture and discovery of information about biological images easier and more efficient. Biodiversity is the study of the diversity of...
A significant percentage of execution cycles are devoted to performing conditional transfers of control, which occur frequently, cause pipeline flushes when mis-predicted and can prevent other code improving transformations from being...
Clusters of Symmetric Multiprocessing (SMP) nodes with multi-core Chip Multiprocessors (CMP), also known as SMP-CMP clusters, are ubiquitous today. Message Passing Interface (MPI) is the de facto standard for developing message passing...
Message Passing Interface (MPI) is broadly used in parallel applications. As High Performance Computing (HPC) systems become massively parallel, the efficiency of communication among processes has become more critical. Since the birth of...
Estimating normals for 3D point clouds and reconstructing a surface interpolating the points are important problems in Computational Geometry and Computer Graphics. Massive point clouds and surfaces with sharp features are active areas...
This work will examine enhancements to the library for scalable, parallel pseudorandom number generation (SPRNG). SPRNG uses parameterization to produce many streams of random numbers with emphasis on parallel Monte Carlo methods. We...
High performance computing(HPC) and data center systems have undergone rapid growth in recent years. To meet the current and future demand of compute- and data-intensive applications, these systems require the integration of a large...
Vector-borne diseases account for more than 17% of infectious diseases, causing more than 1 million deaths annually from malaria, dengue fever, yellow fever, etc. Diseases once thought to be controlled, have experienced a resurgence. For...
Many applications are featured with both text and location information, which leads to a novel type of search: spatial approximate string search (Sas). The Sas is gaining attention from the database community only recently. A large...
This thesis presents and evaluates a new algorithm which generates random numbers. The algorithm uses a Number Theory class of numbers called Normal Numbers. Normal Numbers consist of an infinite sequence of digits which are uniformly...
Quasi-Monte Carlo methods are a variant of ordinary Monte Carlo methods that employ highly uniform quasirandom numbers in place of Monte Carlo's pseudorandom numbers. Monte Carlo methods offer statistical error estimates; however, while...
Due to the wide use of collective operations in Message Passing Interface (MPI) applications, developing efficient collective communication routines is essential. Despite numerous research efforts for optimizing MPI collective operations...
This dissertation is centered on indexing, searching, and mining methods for large-scale and high-dimensional visual data. While the processing to such data has been widely acknowledged to be difficult, the problem becomes more serious...
In many pattern classification problems, efficiently learning a suitable low-dimensional representation of high dimensional data is essential. The advantages of linear dimension reduction methods are their simplicity and efficiency....
This thesis presents the Scalable Parallel Random Number Generators Library (SPRNG) version 4.0. SPRNG is a widely used software package for both serial and parallel pseudorandom number generation. Its generators satisfy every known...
The fast increasing length of random number streams, the application of more powerful cores and emerging various Random Number Generators (RNGs) lead to a revolution from traditional RNGs. The authentic RNGs are mainly based on the...
This thesis studies the 1-center problem on road networks, an important problem in GIS. Using Euclidean embeddings, and reduction to fast nearest neighbor search, an approximation algorithm is devised for this problem. On real world data...
There are a wide variety of clustering and optimization algorithms which work in vector spaces, but relatively fewer that work on graphs. An algorithm to embed road network metrics into vector spaces is presented in this document, which...
With growing interest in devices that utilize the spin degree of freedom of the charge carriers, there is an extensive research effort into materials with high spin polarization. Two types of materials that have attracted particular...
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