Computer Sciences Commons^™

Insecurity By Obscurity: A Review Of Soho Router Literature From A Network Security Perspective, Patryk Szewczyk, Craig Valli

Journal of Digital Forensics, Security and Law

Because of prevalent threats to SoHo based ADSL Routers, many more devices are compromised. Whilst an end-user may be at fault for not applying the appropriate security mechanisms to counter these threats, vendors should equally share the blame. This paper reveals that the lack of security related content and poor overall design could impact on end-users’ interpretation and willingness to implement security controls on their ADSL router. It argues that whilst the number of threats circulating the Internet is increasing, vendors are not improving their product literature.

Supporting Protocols For Structuring And Intelligent Information Dissemination In Vehicular Ad Hoc Networks, Filip Cuckov

Electrical & Computer Engineering Theses & Dissertations

The goal of this dissertation is the presentation of supporting protocols for structuring and intelligent data dissemination in vehicular ad hoc networks (VANETs). The protocols are intended to first introduce a structure in VANETs, and thus promote the spatial reuse of network resources. Segmenting a flat VANET in multiple cluster structures allows for more efficient use of the available bandwidth, which can effectively increase the capacity of the network. The cluster structures can also improve the scalability of the underlying communication protocols. The structuring and maintenance of the network introduces additional overhead. The aim is to provide a mechanism for …

Stereoscopic Display Technology For Visualizing Vascular Structures, Thomas Wischgoll

Computer Science and Engineering Faculty Publications

No abstract provided.

Forecasting The Adoption Of Emerging Energy Technologies: Managing Climate Change And Evolving Social Values, Kelly R. Cowan, Tugrul Daim, Wayne Wakeland, Hosein Fallah, Gerald Sheble, Loren Lutzenhiser, Aaron Ingle, Robert Hammond

Complex Systems Faculty Publications and Presentations

With the linkage between fossil fuel use and climate change now almost universally accepted, addressing greenhouse gas emissions (GHG) has become a subject of great social urgency and technological challenge. A variety of models exists or are under development for analyzing the role of more sustainable systems, such as renewable energy technologies, in mitigating climate change. However the direct cost of these technologies is generally higher than that of fossil fuel systems. Methods are needed to more fully account for externalities, societal impacts, and social values associated with fossil fuels versus sustainable energy systems. This paper presents a conceptual model …

Equational Coalgebraic Logic, Alexander Kurz, Raul Leal

Engineering Faculty Articles and Research

Coalgebra develops a general theory of transition systems, parametric in a functor T; the functor T specifies the possible one-step behaviours of the system. A fundamental question in this area is how to obtain, for an arbitrary functor T, a logic for T-coalgebras. We compare two existing proposals, Moss’s coalgebraic logic and the logic of all predicate liftings, by providing one-step translations between them, extending the results in [21] by making systematic use of Stone duality. Our main contribution then is a novel coalgebraic logic, which can be seen as an equational axiomatization of Moss’s logic. The three logics are …

User Interface Design, Moritz Stefaner, Sebastien Ferre, Saverio Perugini, Jonathan Koren, Yi Zhang

Computer Science Faculty Publications

As detailed in Chap. 1, system implementations for dynamic taxonomies and faceted search allow a wide range of query possibilities on the data. Only when these are made accessible by appropriate user interfaces, the resulting applications can support a variety of search, browsing and analysis tasks. User interface design in this area is confronted with specific challenges. This chapter presents an overview of both established and novel principles and solutions.

Exploring Out-Of-Turn Interactions With Websites, Saverio Perugini, Naren Ramakrishnan, Manuel A. Pérez-Quiñones, Mary E. Pinney, Mary Beth Rosson

Computer Science Faculty Publications

Hierarchies are ubiquitous on the web for structuring online catalogs and indexing multidimensional attributed data sets. They are a natural metaphor for information seeking if their levelwise structure mirrors the user's conception of the underlying domain. In other cases, they can be frustrating, especially if multiple drill‐downs are necessary to arrive at information of interest. To support a broad range of users, site designers often expose multiple faceted classifications or provide within‐page pruning mechanisms. We present a new technique, called out-of-turn interaction, that increases the richness of user interaction at hierarchical sites, without enumerating all possible completion paths in the …

A Secure Group Communication Architecture For Autonomous Unmanned Aerial Vehicle, Adrian N. Phillips, Barry Mullins, Richard Raines, Rusty O. Baldwin

Computer Science Faculty Publications

This paper investigates the application of a secure group communication architecture to a swarm of autonomous unmanned aerial vehicles (UAVs). A multicast secure group communication architecture for the low earth orbit (LEO) satellite environment is evaluated to determine if it can be effectively adapted to a swarm of UAVs and provide secure, scalable, and efficient communications. The performance of the proposed security architecture is evaluated with two other commonly used architectures using a discrete event computer simulation developed using MATLAB. Performance is evaluated in terms of the scalability and efficiency of the group key distribution and management scheme when the …

Real-Time Image-Based Motion Detection Using Color And Structure, Manali Chakraborty

Open Access Theses & Dissertations

Motion detection is an important problem in computer vision and has multiple applications in the real world, including surveillance-related activities, gaming, and human-robot interactions. These systems need to be robust enough to handle fluctuations in light intensity and other external factors like noise and compression artifacts. In this thesis a method is proposed for detecting the regions of motion from a video sequence in real time. The main idea of this work is to detect motion based on both structure and color. Structure-based detection is carried out using information from the Census Transform computed on gradient images obtained with Sobel …

A Generic Approach To Computer-Based Clinical Practice Guideling Management Using The Eca Rule Paradigm And Active Databases, Bing Wu, Kudakwashe Dube

Articles

The increasing demand for reduced cost and improved quality of service in healthcare has prompted the call for better management of medical knowledge. The main emphasis has been on knowledge that is acquired through experience and medical research and then formalised into Clinical Practice Guidelines (CPGs). This paper presents a generic approach to CPG information and knowledge management that uses the Event-Condition-Action (ECA) rule paradigm and active databases within a unified management framework. The paper focuses on an approach for facilitating the use and management of CPGs by clinicians through delivering the CPGs at the point-of-care by a computerised mechanism.

The Good, The Bad And The Incorrectly Classified: Profiling Cases For Case-Base Editing, Sarah Jane Delany

Conference papers

Case-based approaches to classification, as instance-based learning techniques, have a particular reliance on training examples that other supervised learning techniques do not have. In this paper we present the RDCL case profiling technique that categorises each case in a case-base based on its classification by the case-base, the benefit it has and/or the damage it causes by its inclusion in the case-base. We show how these case profiles can identify the cases that should be removed from a case-base in order to improve generalisation accuracy and we show what aspects of existing noise reduction algorithms contribute to good performance and …

A Mobile Ecg Monitoring System With Context Collection, Jin Peng Li, Damon Berry, Richard Hayes

Conference Papers

Preventative health management represents a shift from the traditional approach of reactive treatment-based healthcare towards a proactive wellness-management approach where patients are encouraged to stay healthy with expert support when they need it, at any location and any time. This work represents a step along the road towards proactive, preventative healthcare for cardiac patients. It seeks to develop a smart mobile ECG monitoring system that requests and records context information about what is happening around the subject when an arrhythmia event occurs. Context information about the subject’s activities of daily living will, it is hoped, provide an enriched data set …

A Novel Ep Approach For Multi-Area Economic Dispatch With Multiple Fuel Options, P. S. Manoharan, P. S. Kannan, V. Ramanathan

Turkish Journal of Electrical Engineering and Computer Sciences

This paper presents a novel approach to multi-area economic dispatch problems with multiple fuel options using a hybrid evolutionary programming method. The objective is to minimize the operation cost of the entire system while satisfying the tie line constraints. In this paper, EP-LMO (Evolutionary Programming with Levenberg-Marquardt Optimization) technique is proposed to solve multi-area economic dispatch problems with multiple fuel options. The EP-LMO is developed in such a way that a simple evolutionary programming (EP) is applied as a base level search to find the direction of the optimal global region. And Levenberg-Marquardt Optimization (LMO) method is used as a …

Electronic Differential With Direct Torque Fuzzy Control For Vehicle Propulsion System, Kada Hartani, Mohamed Bourahla, Yahia Miloud, Mohamed Sekour

Turkish Journal of Electrical Engineering and Computer Sciences

We model an electronic differential that will offer the best vehicle stability on a curved road. The proposed traction system consists of two permanent magnet synchronous (PMS) machines that ensure the drive of two back-driving wheels. The contribution of each wheel to the advance of the vehicle is represented by an element conveying the accumulation of mechanical coupling. The proposed control structure is based on the direct torque fuzzy control for each wheel-motor. Different simulations have been carried out: vehicle driven ons straight road, vehicle driven on straight road with slope, and vehicle driven over a road curved left and …

Construction And Applications Of The Dirichlet-To-Neumann Operator In Transmission Line Modeling, Thomas Demeester, Daniel De Zutter

Turkish Journal of Electrical Engineering and Computer Sciences

The Dirichlet-to-Neumann (DtN) operator is a useful tool in the characterization of interconnect structures. In combination with the Method of Moments, it can be used for the calculation of the per-unit length transmission line parameters of multi-conductor interconnections, or to directly determine the internal impedance of conductors. This paper presents a new and fast calculation method for the DtN boundary operator in the important case of rectangular structures, based on the superposition of parallel-plate waveguide modes. Especially for its non-differential form, some numerical issues need to be addressed. It is further explained how the DtN operator can be determined for …

Vlsi-Cell Placement Technique For Architecture Of Field Programmable Gate Array (Fpga) Design, Avnesh Verma, Sunil Dhingra, M. K. Soni

Turkish Journal of Electrical Engineering and Computer Sciences

The Field Programmable Gate Array (FPGA) is an on field programmable device which can be designed for different applications. Various types of software are available for its synthesis. The cell placement depends upon the designing and programming languages used for FPGA. In this paper cell placement technique of FPGA architecture is analyzed for the application of Space Vector Pulse Width Modulation (SVPWM) technique used in speed control of an induction motor. The modulation pulses are produced due to the various components activated and their interconnection in Configurable Logic Blocks (CLBs). Few of its components are so analyzed to find out …

Modeling And Calculation Of Electromagnetic Field In The Surroundings Of A Large Power Transformer, Leonardo Strac, Franjo Kelemen, Damir Zarko

Turkish Journal of Electrical Engineering and Computer Sciences

The presented study compares measured and calculated electromagnetic field quantities in the surroundings of a large power transformer with the aim to avoid the necessity of measuring the field on subsequent units and use a computer model instead. The influences of various objects located in the vicinity of the transformer during measurement are also analyzed and are taken into account in a computer model.

A Compartmentalized Approach To The Assembly Of Physical Maps, Serdar Bozdag, Timothy J. Close, Stefano Lonardi

Mathematics, Statistics and Computer Science Faculty Research and Publications

Background: Physical maps have been historically one of the cornerstones of genome sequencing and map-based cloning strategies. They also support marker assisted breeding and EST mapping. The problem of building a high quality physical map is computationally challenging due to unavoidable noise in the input fingerprint data. Results: We propose a novel compartmentalized method for the assembly of high quality physical maps from fingerprinted clones. The knowledge of genetic markers enables us to group clones into clusters so that clones in the same cluster are more likely to overlap. For each cluster of clones, a local physical map is first …

An Investigation Of Training In Creative Problem Solving And Its Relationship To Affective And Effective Idea Generation Of Entrepreneurial Learners, Charles Edward Leach

CCAC Theses and Dissertations

A significant proportion of the population engages in entrepreneurial behavior but many ventures do not survive beyond startup thus decreasing the pool of entrepreneurs available to contribute to the economy. Opportunity recognition is central to entrepreneurial success and the improper delineation of opportunities is cited as a leading cause of venture failure. There is a logical link between creativity, innovation and entrepreneurship. The goal of the researcher in this study was to explore the relationships between CPS training and the generation of entrepreneurial ideas.

The investigation studied the relationship of training in creative problem solving (CPS) to the opportunity identification …

Design, Development, And Implementation Of A Wireless Local Area Network (Wlan): The Hartford Job Corps Academy Case Study, Tracey Kershner Cooley

CCAC Theses and Dissertations

Wireless Local Area Networks (WLANs) offer flexibility, mobility, and scalability to educational institutions. Students are increasingly expecting anywhere, anytime access to online resources. Secondary school administrators, who serve a similar population as the National Job Corps Program (NJCP), realize that student success in the 21st century workplace depends upon the student's ability to use new and emerging technologies, including wireless technology. Computer access anytime and anywhere is crucial to the success of students today.

Wireless technology has been broadly deployed at educational institutions, such as the Hartford Job Corps Academy (HJCA), but little is known about how these networks are …

A Methodology For Design And Development Of An Electronic Learning (E-Learning) Network At The Regis University School For Professional Studies, Samuel Steven Conn

CCAC Theses and Dissertations

E-learning networks are used by academic institutions such as Regis University to support synchronous and asynchronous delivery of online courses and programs. An e-learning network supports a wide range of applications and services and facilitates access to diverse e-learning implementations including virtual laboratory (V-lab) environments, knowledge repositories, storage area networks (SANs), and content delivery networks (CDNs), as well as metropolitan, regional, and international research and education configurations. As demonstrated in this dissertation, an e-learning network eliminates campus boundaries by providing infrastructure for information flows regionally, nationally, and internationally.

A systems development life cycle (SDLC) methodology enables academic institutions to design …

A Model For Using Managed Services In Designing And Supporting A Wireless Local Area Network For The Navy Marine Corps Intranet, Joseph L. Roth

CCAC Theses and Dissertations

The purpose and content of this work are to explore the proper strategy on how to deploy multi-service mobile net centric warfare, or FORCEnet, the Navy's concept for Net Centric Warfare. In this research, the author examined where the Navy Marine Corps Intranet (NMCI) fits into this vision and how it is mobile and multi-service compatible. It also explored how low-cost commercial approaches such as IEEE 802.11 wireless local area network technologies can be implemented as a joint notion of Net Centric Warfare in terms of a Service Oriented Architecture (SOA). The problem investigated in this study was to evaluate …

Section 508 Adherence By Industry Professionals: Improving Universal Design Through Training, Antonio Rincon

CCAC Theses and Dissertations

Section 508 of the Rehabilitation Act Amendments of 1998 took effect in 2001 and provides encouragement for universal design and compliance requirements to the federal sector for purchases that are accessible by people with disabilities. A division of General Dynamics Advanced Information Systems (GDAIS) is located in Pittsfield, Massachusetts and provides electronic and information technology solutions to federal customers in the defense, intelligence, and homeland security communities.

The general lack of training is a major factor for low compliance to Section 508. Improving awareness is important at GDAIS in order to increase its federal sales market share, develop new products …

A Model For The Evaluation Of Is/It Investments, Paul M. Tuten

CCAC Theses and Dissertations

Evaluation is a vital--yet challenging--part of IS/IT management and governance. The benefits (or lack therefore) associated with IS/IT investments have been widely debated within academic and industrial communities alike. Investments in information technology may or may not result in desirable outcomes. Yet, organizations must rely on information systems to remain competitive. Effective evaluation serves as one pathway to ensuring success. However, despite a growing multitude of measures and methods, practitioners continue to struggle with this intractable problem.

Responding to the limited success of existing methods, scholars have argued that academicians should first develop a better understanding of the process of …

An Investigation Of The Contributions Of Gender, Shopping Orientation, Online Experience, And Website's Interactive Features To Consumers' Intentions To Engage In Apparel E-Commerce Shopping, Amanda Wynn

CCAC Theses and Dissertations

E-commerce has experienced exponential growth within the last few years. The rapid growth of e-commerce has created a need to improve consumer acceptance and the consumer's intention to engage in e-commerce. Female consumers have yet to embrace e-commerce as readily as male consumers. Differences between male and female consumer shopping behavior were examined.

This study developed and empirically tested a model to predict the consumer's intention to engage in apparel e-commerce shopping based on the constructs of gender, shopping orientation, online experience, and Website's interactive features. Male and female U.S. consumers age 18 and older were surveyed to determine their …

Responsibility Factors Of Reducing Inefficiencies In Information System Processes And Their Role On Intention To Acquire Six Sigma Certification, Sara Hejazi

CCAC Theses and Dissertations

Organizations worldwide have been turning to Six Sigma program (SSP) to eliminate the defects in their products or drive out the variability in their processes to attain a competitive advantage in their marketplace. An effective certification program has been touted as a major contributor to successful implementation of SSP. An effective certification program provides the professionals involved with SSP projects a clear understanding of what their responsibilities should be in reducing the variability in their processes. Despite the benefits, a significant number of professionals who attend certification training fail to become certified.

This study aimed to develop a predictive model …

Parallel Mining Of Association Rules Using A Lattice Based Approach, Wessel Morant Thomas

CCAC Theses and Dissertations

The discovery of interesting patterns from database transactions is one of the major problems in knowledge discovery in database. One such interesting pattern is the association rules extracted from these transactions. Parallel algorithms are required for the mining of association rules due to the very large databases used to store the transactions. In this paper we present a parallel algorithm for the mining of association rules. We implemented a parallel algorithm that used a lattice approach for mining association rules. The Dynamic Distributed Rule Mining (DDRM) is a lattice-based algorithm that partitions the lattice into sublattices to be assigned to …

A Study Of First- And Continuing-Generation College Students' Use Of Internet Communication Technologies In Social Capital And Its Contribution To Their Persistence In College, Gail Dianne (Hodge) Hayes

CCAC Theses and Dissertations

Prior studies have shown that students who are the first in their families to attend college fail to persist in college more so than their continuing-generation (CG) counterparts do. Prior research on this phenomenon has helped to identify various factors that contribute to the lower college persistence of first-generation (FG) students. For example, social capital has been identified as a factor that improves student persistence in college. Prior studies have shown that FG students tend to enter college with lower social capital than their CG student counterparts do. Additionally, while in school, FG students tend not to engage in behaviors …

Analytical Regularization Method For Electromagnetic Wave Diffraction By Axially Symmetrical Thin Annular Strips, Fati̇h Di̇kmen, Yury Alexanderovich Tuchkin

Turkish Journal of Electrical Engineering and Computer Sciences

A new mathematically rigorous and numerically efficient method based on the combination of Orthogonal Polynomials Method, and Analytical Regularization Method, for electromagnetic wave diffraction by a model structure for various antennae such as Fresnel zone plates is proposed. It can be used as validation tool for the other (more general or less accurate) numerical methods and physical approaches. The initial boundary value problem is equivalently reduced to the infinite system of the linear algebraic equations of the second kind, i.e. to an equation of the type (I+H) x=b in the space l_2 with compact operator H. This equation can be …

Voltage Control Of Self-Excited Induction Generator Using Genetic Algorithm, Dheeraj Joshi, Kanwarjit Singh Sandhu, Mahender Kumar Soni

Turkish Journal of Electrical Engineering and Computer Sciences

Self-excited induction generators (SEIG) are found to be most suitable candidate for wind energy conversion application required at remote windy locations. Such generators are not able to maintain the terminal voltage with load as, a literature survey reveals, the voltage profile falls sharply with load. In this paper an attempt has been made to improve the voltage profile of a self-excited induction generator. A new methodology based upon Genetic Algorithm (GA) is proposed to compute the steady state performance of the model including core loss branch. Further efforts are made to control the terminal voltage under loaded conditions. Simulated results …