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Articles 1 - 14 of 14
Full-Text Articles in Physical Sciences and Mathematics
Knowledge Discovery In Biological Databases : A Neural Network Approach, Qicheng Ma
Knowledge Discovery In Biological Databases : A Neural Network Approach, Qicheng Ma
Dissertations
Knowledge discovery, in databases, also known as data mining, is aimed to find significant information from a set of data. The knowledge to be mined from the dataset may refer to patterns, association rules, classification and clustering rules, and so forth. In this dissertation, we present a neural network approach to finding knowledge in biological databases. Specifically, we propose new methods to process biological sequences in two case studies: the classification of protein sequences and the prediction of E. Coli promoters in DNA sequences. Our proposed methods, based oil neural network architectures combine techniques ranging from Bayesian inference, coding theory, …
Genetically Evolved Dynamic Control For Quadruped Walking, Giorgio Grasso
Genetically Evolved Dynamic Control For Quadruped Walking, Giorgio Grasso
Dissertations
The aim of this dissertation is to show that dynamic control of quadruped locomotion is achievable through the use of genetically evolved central pattern generators. This strategy is tested both in simulation and on a walking robot. The design of the walker has been chosen to be statically unstable, so that during motion less than three supporting feet may be in contact with the ground.
The control strategy adopted is capable of propelling the artificial walker at a forward locomotion speed of ~1.5 Km/h on rugged terrain and provides for stability of motion. The learning of walking, based on simulated …
Component-Based Software Engineering, Zhiyuan Wang
Component-Based Software Engineering, Zhiyuan Wang
Dissertations
To solve the problems coming with the current software development methodologies, component-based software engineering has caught many researchers' attention recently. In component-based software engineering, a software system is considered as a set of software components assembled together instead of as a set of functions from the traditional perspective. Software components can be bought from third party vendors as off-the-shelf components and be assembled together.
Component-based software engineering, though very promising, needs to solve several core issues before it becomes a mature software development strategy. The goal of this dissertation is to establish an infrastructure for component-based software development. The author …
Applications Of Agent Architectures To Decision Support In Distributed Simulation And Training Systems, Plamen V. Petrov
Applications Of Agent Architectures To Decision Support In Distributed Simulation And Training Systems, Plamen V. Petrov
Dissertations
This work develops the approach and presents the results of a new model for applying intelligent agents to complex distributed interactive simulation for command and control. In the framework of tactical command, control communications, computers and intelligence (C4I), software agents provide a novel approach for efficient decision support and distributed interactive mission training. An agent-based architecture for decision support is designed, implemented and is applied in a distributed interactive simulation to significantly enhance the command and control training during simulated exercises. The architecture is based on monitoring, evaluation, and advice agents, which cooperate to provide alternatives to the …
Development And Characterization Of Techniques For Neuro-Imaging Registration, Carlo Ciulla
Development And Characterization Of Techniques For Neuro-Imaging Registration, Carlo Ciulla
Theses
Three automated techniques were developed for the alignment of Neuro-Images acquired during distinct scanning periods and their performance were characterized. The techniques are based on the assumption that the human brain is a rigid body and will assume different positions during different scanning periods. One technique uses three fiducial markers, while the other two uses eigenvectors of the inertia matrix of the Neuro-Image, to compute the three angles (pitch, yaw and roll) needed to register the test Neuro-Image to the reference Neuro-Image. A rigid body transformation is computed and applied to the test Neuro-Image such that it results aligned to …
The Gx-Tree, Amgad Mohamed Abdelkader Al-Sisi
The Gx-Tree, Amgad Mohamed Abdelkader Al-Sisi
Archived Theses and Dissertations
No abstract provided.
Using Raster Sketches For Digital Image Retrieval, James Carswell
Using Raster Sketches For Digital Image Retrieval, James Carswell
Electronic Theses and Dissertations
This research addresses the problem of content-based image retrieval using queries on image-object shape, completely in the raster domain. It focuses on the particularities of image databases encountered in typical topographic applications and presents the development of an environment for visual information management that enables such queries. The query consists of a user-provided raster sketch of the shape of an imaged object. The objective of the search is to retrieve images that contain an object sufficiently similar to the one specified in the query. The new contribution of this work combines the design of a comprehensive digital image database on-line …
Enhancing A Virtual Distributed Library User Interface Via Server-Side User Profile Caching, Jason T. Ward
Enhancing A Virtual Distributed Library User Interface Via Server-Side User Profile Caching, Jason T. Ward
Theses and Dissertations
Various Department of Defense (DoD) agencies archive terabytes of intelligence imagery and electrooptical signature data. The Air Force Research Laboratory, Sensors Directorate (AFRL/SN), is tasked with creating and managing a virtual distributed library that facilitates secure, detailed queries across these distributed holdings using the internally developed Advanced Query Tool (AQT). In this research, a methodology is proposed to utilize user profiling techniques to augment a digital library. As part of this methodology, product-oriented usability analysis metrics are introduced that quantitatively verify the usability of an interface. The methodology is applied to the AFRL/SN's Virtual Distributed Laboratory AQT and subsequently analyzed …
Data Warehouse Techniques To Support Global On-Demand Weather Forecast Metrics, Meriellen C. Joga
Data Warehouse Techniques To Support Global On-Demand Weather Forecast Metrics, Meriellen C. Joga
Theses and Dissertations
Air Force pilots and other operators make crucial mission planning decisions based on weather forecasts; therefore, the ability to forecast the weather accurately is a critical issue to Air Force Weather (AFW) and its customers. The goal of this research is to provide Air Force Weather with a methodology to automate statistical data analysis for the purpose of providing on-demand metrics. A data warehousing methodology is developed and applied to the weather metrics problem in order to present an option that will facilitate on-demand metrics. On-line analytical processing (OLAP) and data mining solutions are also discussed.
Collaborative Software Agents Support For The Texpros Document Management System, Jrtian Lin
Collaborative Software Agents Support For The Texpros Document Management System, Jrtian Lin
Dissertations
This dissertation investigates the use of active rules that are embedded in markup documents. Active rules are used in a markup representation by integrating Collaborative Software Agents with TEXPROS (abbreviation for TEXt PROcessing System) [Liu and Ng 1996] to create a powerful distributed document management system. Such markup documents with embedded active rules are called Active Documents. For fast retrieval purposes, when we need to generate a customized Internet folder organization, we first define the Folder Organization Query Language (FO-QL) to solve data categorization problems. FO-QL defines the folder organization query process that automatically retrieves links of documents deposited into …
Remote View Manager For Visual Foxpro Application, Sustanie Harding
Remote View Manager For Visual Foxpro Application, Sustanie Harding
Theses Digitization Project
In this project, the Remote View Mapping (RVM) tool has been developed to assist programmers in the maintenance of the Database Container (DBC). The purpose of the RVM is to establish a relationship between open applications and the DBC.
The Incident Dispatching And Tracking System, Thomas J. Braden
The Incident Dispatching And Tracking System, Thomas J. Braden
UNF Graduate Theses and Dissertations
The Incident Dispatching and Tracking System (IDTS) was developed to facilitate the technical support of an organization. IDTS provides a means by which a user may submit their issue/problem to the system and receive a unique trouble ticket number. This number can then be used to view the status of that record, minimizing the need for inquiries to the technical support team. IDTS also provides a dispatching function that assigns each trouble ticket to a technician that specializes in that type of issue. Finally, there is a reporting function that allows the technical support team to view the current technical …
An Examination Of A Multidimensional Model Of Customer Satisfaction With Internet Purchasing, Kathleen Vanscoyoc
An Examination Of A Multidimensional Model Of Customer Satisfaction With Internet Purchasing, Kathleen Vanscoyoc
Theses and Dissertations in Business Administration
The World Wide Web and Internet have transformed the competitive business environment and altered the customer-firm relationship by creating a new retailing format and service enterprise. It is rapidly growing as a competitive distribution medium in which customer satisfaction will be a major success factor in the development and maintenance of this new retailing format. Despite its growing importance as a new shopping medium, little empirical research has been conducted that examines the relationship between Internet shopping, customer satisfaction, company image, and future online purchasing. Research is needed to develop theoretical models that will systematically explain and predict behavior related …
An Investigation Of The Relationship Between Organisational Size And Industry Type With The Development And Use Of Executive Information Systems In The Manufacturing Sector, Nigel Warne
Theses: Doctorates and Masters
The purpose of this investigative research is to provide quantitative detail to better understand the development and use of Executive Information Sysytems (EIS) in the Australian Manufacturing sector. This investigation is an extension of previous research done on EIS in Australia (Prevan, 1992; Pervan and Phua, 1997) and looks more closely at the independent variables of organisation size and industry type in their relationaship with the development and use of EIS. A broad literature review provides a descriptive model that gives some insight into the development and use of EIS over more than fifteen years. Over eighty per cent of …