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Articles 1 - 8 of 8
Full-Text Articles in Physical Sciences and Mathematics
Extending Traditional Static Analysis Techniques To Support Development, Testing And Maintenance Of Component-Based Solutions, Robert David Cherinka
Extending Traditional Static Analysis Techniques To Support Development, Testing And Maintenance Of Component-Based Solutions, Robert David Cherinka
Computer Science Theses & Dissertations
Traditional static code analysis encompasses a mature set of techniques for helping understand and optimize programs, such as dead code elimination, program slicing, and partial evaluation (code specialization). It is well understood that compared to other program analysis techniques (e.g., dynamic analysis), static analysis techniques do a reasonable job for the cost associated with implementing them. Industry and government are moving away from more ‘traditional’ development approaches towards component-based approaches as ‘the norm.’ Component-based applications most often comprise a collection of distributed object-oriented components such as forms, code snippets, reports, modules, databases, objects, containers, and the like. These components are …
Two Approaches To Critical Path Scheduling For A Heterogeneous Environment, Guangxia Liu
Two Approaches To Critical Path Scheduling For A Heterogeneous Environment, Guangxia Liu
Computer Science Theses & Dissertations
Advances in computing and networking technologies are making large scale distributed heterogeneous computing a reality. Multi-Disciplinary Optimization (MDO) is a class of applications that is being addressed under this paradigm. It consists of multiple heterogeneous modules interacting with each other to solve an overall design problem. An efficient implementation of such an application requires scheduling heterogeneous modules (with different computing and disk 1/0 requirements) on a heterogeneous set of resources (with different CPU, memory, disk IO specifications).
Given a set of tasks and a set of resources, an optimal schedule of the tasks on the resources is very hard to …
Architectural Optimization Of Digital Libraries, Aileen O. Biser
Architectural Optimization Of Digital Libraries, Aileen O. Biser
Computer Science Theses & Dissertations
This work investigates performance and scaling issues relevant to large scale distributed digital libraries. Presently, performance and scaling studies focus on specific implementations of production or prototype digital libraries. Although useful information is gained to aid these designers and other researchers with insights to performance and scaling issues, the broader issues relevant to very large scale distributed libraries are not addressed. Specifically, no current studies look at the extreme or worst case possibilities in digital library implementations. A survey of digital library research issues is presented. Scaling and performance issues are mentioned frequently in the digital library literature but are …
Designing A High-Quality Network: An Application-Oriented Approach, Sudheer Dharanikota
Designing A High-Quality Network: An Application-Oriented Approach, Sudheer Dharanikota
Computer Science Theses & Dissertations
As new computer network technologies emerge, the application designers and the application users expect an increasing level of quality of service from them. Hence, it is a common practice in the newer technologies to provide more Quality of Service (QoS) components. Until now, these QoS solutions have been both network-technology specific and network-oriented solutions. In this thesis, we present an application-oriented approach to design a high quality network which is independent of the underlying communication technology. In this thesis, we propose a QoS architecture to "provide predictable performance to the end-to-end application users in a high quality networking environment." In …
Real Time Texture Analysis From The Parallel Computation Of Fractal Dimension, Halford I. Hayes Jr.
Real Time Texture Analysis From The Parallel Computation Of Fractal Dimension, Halford I. Hayes Jr.
Computer Science Theses & Dissertations
The discrimination of texture features in an image has many important applications: from detection of man-made objects from a surrounding natural background to identification of cancerous from healthy tissue in X-ray imagery. The fractal structure in an image has been used with success to identify these features but requires unacceptable processing time if executed sequentially.
The paradigm of data parallelism is presented as the best method for applying massively parallel processing to the computation of fractal dimension of an image. With this methodology, and sufficient numbers of processors, this computation can reach real time speeds necessary for many applications. A …
Reasoning By Analogy In A Multi-Level System Architecture For The Design Of Mechanisms, Ghassan F. Issa
Reasoning By Analogy In A Multi-Level System Architecture For The Design Of Mechanisms, Ghassan F. Issa
Computer Science Theses & Dissertations
Since the first attempts to integrate AI technology and engineering design nearly two decades ago, few expert systems have been shown to demonstrate sufficient reasoning capabilities to solve real-world design problems. The complex nature of design, the lack of understanding of the design process, and the limitations of current expert system technology have all been shown to have adverse effects on the maturity of this research area. Therefore, our direction in this research concentrates on understanding the design process, investigating a novel area of research focusing on creative design, and incorporating the results into a system model feasible for production …
A Case Study In Software Reuse: The Rntds Architecture, Barry J. Stevens
A Case Study In Software Reuse: The Rntds Architecture, Barry J. Stevens
Computer Science Theses & Dissertations
It has been asserted that the most significant gains in software productivity will come from increased levels of software reuse. Some economic models for predicting savings through software reuse exist, but none are based on actual project experience. This paper surveys those models and presents the results of a case study, the Restructured Naval Tactical Data Systems (RNTDS) architecture, in the light of those models. According to the models, software reuse via the RNTDS architecture has enabled the production of fourteen major computer programs at five to twenty-one percent of the cost to create them without software reuse. Organizational characteristics …
A Root Finding Algorithm For Parallel Architecture Machines, Stuti Moitra
A Root Finding Algorithm For Parallel Architecture Machines, Stuti Moitra
Computer Science Theses & Dissertations
In this thesis a parallel algorithm for determining the zeros of any given analytic function is described. Parallelism is achieved by modifying the traditional bisection algorithm for architecture machines.
Given any user supplied function f(X), continuous on the interval Ao ≤ x ≤ B0, and the tolerance of accuracy an algorithm of determining up to ten roots, with error of approximation less than or equal to tolerance, on parallel systems like Distributed Array Processor (OAP) and N-cube is considered.
A variation of the bisection method has been adapted for this purpose. At each level of iteration a …