Digital Commons Network^™

An Investigation Of The Effects Of The Gerogis Framework For Integrating Technology(In Tech) Training Program On Teachers' Computer Self-Efficacy And Computer Utilization, Ian Johnson

CCAC Theses and Dissertations

National technology standards drafted by the International Society for Technology in Education (ISTE) are incorporated into the technology standards required of American public schools. The state board of education in Georgia instituted the Georgia Framework for Integrating TECHnology (InTech), which is a 50-hour training program that prepares teachers to help their students accomplish technology standards and performance objectives.

The goal of this study was to investigate the effects on teachers' computer self-efficacy, technology integration, current instructional practices, personal computer use and factors relating to use or non-use of computers in the curriculum after completing the Georgia Framework for Integrating TECHnology …

A Quantitative Analysis Of Performance In A Multi-Protocol Ad Hoc 802.11b-Based Wireless Local Network, Paul Christian Nielsen Jr.

CCAC Theses and Dissertations

The popularity of the Internet and the growing demand for ubiquitous connectivity accelerate the need for viable wireless local area network (WLAN) solutions. As a consequence, increasing number of manufacturers have adopted the Institute of Electrical and Electronic Engineers (IEEE) 802.11a/b/g set of WLAN standards and produced inexpensive wireless products to expand capabilities of existing LANs. IEEE 802.11 b wireless products are widely accepted. Mobile ad hoc networks, a variant of the 802.11 standards, exist without the requirement for a wired infrastructure or host to provide routing, connectivity, and maintenance services. Because of the high variability of environments in which …

Blogging: An Inquiry Into The Efficacy Of A Web-Based Technology For Student Reflection In Community College Computer Science Programs, Jane W. Perschbach

CCAC Theses and Dissertations

Reflection in learning is a pedagogical technique used to promote the higher order cognitive skills of analysis, synthesis, and evaluation that constitute the concept of critical thinking. To foster reflection in learning, the Internet technology of online journals known as blogs was employed in a two-semester, four-course investigation of the efficacy of this educational technology for vocational computer science students in a community college. The process involved an instructor-designed and maintained course blog containing suggestions for student reflection as well as hyperlinks to individual student peer blogs. Students were required to read both the course and peer blogs, and to …

Scholarly Communication And Knowledge Management In American Zoos, Julia Innes

CCAC Theses and Dissertations

The researcher investigated whether frontline, tacit knowledge about zoo animals was captured by zookeepers, curators, researchers, veterinarians, and outside researchers and, if so, whether and how it was transmitted into the scholarly literature. A bibliometric analysis was done of a representative sample of peer-reviewed zoo research articles published between 1973 and 200 I. This was extended to grey literature and acknowledgements statements from the same period to obtain a more global picture.

Research participants were evaluated in terms of their contributions (journal articles, conference papers, or acknowledged research assistance). Changes were mapped chronologically and by profess ion. The participation of …

Engineering Education In The 21st Century: Issues And Perspectives, Leopold B. Felsen

Turkish Journal of Electrical Engineering and Computer Sciences

No abstract provided.

Speaking With Numbers: Scientific Literacy And Public Understanding Of Science, Levent Sevgi̇

Turkish Journal of Electrical Engineering and Computer Sciences

Public understanding of science and scientific literacy is discussed. Scientific method, scientific process and scientific filter are reviewed accordingly. Basic terms of measurement and numerical calculation are outlined. Finally, fundamental requirements of scientific literacy and critical response skills are presented.

Computational Sciences: At The Intersection Of Science And Engineering--Case Study For Academic And Research Programs, Menas Kafatos, Peter Becker, Zafer Boybeyi̇

Turkish Journal of Electrical Engineering and Computer Sciences

No abstract provided.

Readjusting The Current Trend In Electrical Power Engineering, Johan Smit, Peter Morshuis, Edward Gulski

Turkish Journal of Electrical Engineering and Computer Sciences

In this paper the electrical power education curriculum is analyzed from the viewpoint of the electrical power industry and from the viewpoint of young people that contemplate their future academic study. From the perspective of young people in industrialized countries contemplating their future and the possibilities of an academic study, the current curriculum in (power) engineering lacks attraction. The number of freshmen still shows a decreasing trend. This paper is aimed to be a contribution towards readjusting this trend

Modeling And Simulation Concepts In Engineering Education: Virtual Tools, Levent Sevgi̇

Turkish Journal of Electrical Engineering and Computer Sciences

This article reviews fundamental concepts of modeling and simulation in computational sciences, such as a model, analytical- and numerical-based modeling, simulation, validation, verification, etc., in relation to the virtual labs widely-offered as parts of engineering education. Virtual tools that can be used in electromagnetic engineering are also introduced.

State Of The Art For Differential Circuits In Wireless Transceivers: A New Wideband Active Balun In Sige Bicmos Technology, Balwant Godara, Alain Fabre

Turkish Journal of Electrical Engineering and Computer Sciences

The aim of this paper is 3-fold: firstly, to provide a comprehensive overview of the use of differential circuits for analogue signal processing in wireless transceivers; secondly, to describe, in detail, single-ended signal to differential conversion, and the corresponding theory of such devices, their characterisation, various methods of implementation, and comparative analyses of their performance; lastly, to propose a new transistor-based solution for wideband baluns. This novel solution is based on the current conveyor and has been modelled using the transistor parameters of a 0.35 \mu m SiGe BiCMOS technology. The salient features of the new implementation are: (a) stable …

Controlling Rail Potential Of Dc Supplied Rail Traction Systems, Mehmet Turan Söylemez, Süleyman Açikbaş, Adnan Kaypmaz

Turkish Journal of Electrical Engineering and Computer Sciences

Most modern DC electrified mass transit systems use a totally floating earth as their grounding strategy. A well-known problem related with totally floating systems is that the touch potentials can be dangerously high. In order to reduce the voltages on rails, several devices exist. Most of these devices allow a direct connection to earth when a certain voltage threshold is exceeded. In this paper, the working principles of these devices are given and the effect of certain parameters related with these devices on the minimum achievable touch potentials is investigated.

Synchronization And Multiple Group Server Support For Kepler, K. Maly, M. Zubair, H. Siripuram, S. Zunjarwad, Yannis Manolopoulos (Ed.), Joaquim Filipe (Ed.), Panos Constantopoulos (Ed.), José Cordeiro (Ed.)

Computer Science Faculty Publications

In the last decade literally thousands of digital libraries have emerged but one of the biggest obstacles for dissemination of information to a user community is that many digital libraries use different, proprietary technologies that inhibit interoperability. Kepler framework addresses interoperability and gives publication control to individual publishers. In Kepler, OAI-PMH is used to support "personal data providers" or "archivelets".". In our vision, individual publishers can be integrated with an institutional repository like Dspace by means of a Kepler Group Digital Library (GDL). The GDL aggregates metadata and full text from archivelets and can act as an OAI-compliant data provider …

Observed Web Robot Behavior On Decaying Web Subsites, Joan A. Smith, Frank Mccown, Michael L. Nelson

Computer Science Faculty Publications

We describe the observed crawling patterns of various search engines (including Google, Yahoo and MSN) as they traverse a series of web subsites whose contents decay at predetermined rates. We plot the progress of the crawlers through the subsites, and their behaviors regarding the various file types included in the web subsites. We chose decaying subsites because we were originally interested in tracking the implication of using search engine caches for digital preservation. However, some of the crawling behaviors themselves proved to be interesting and have implications on using a search engine as an interface to a digital library.

Fedcor: An Institutional Cordra Registry, Giridhar Manepalli, Henry Jerez, Michael L. Nelson

Computer Science Faculty Publications

FeDCOR (Federation of DSpace using CORDRA) is a registry-based federation system for DSpace instances. It is based on the CORDRA model. The first article in this issue of D-Lib Magazine describes the Advanced Distributed Learning-Registry (ADL-R) [1], which is the first operational CORDRA registry, and also includes an introduction to CORDRA. That introduction, or other prior knowledge of the CORDRA effort, is recommended for the best understanding of this article, which builds on that base to describe in detail the FeDCOR approach.

An Interactive Constraint-Based Approach To Minesweeper, Ken Bayer, Josh Snyder, Berthe Y. Choueiry

School of Computing: Conference and Workshop Papers

We present a Java applet that uses Constraint Processing (CP) to assist a human in playing the popular game Minesweeper. Our goal is to illustrate the power of CP techniques to model and solve combinatorial problems in a context accessible to the general public.

Minesweeper is a video game that has been included with Microsoft Windows since 1989. In this game, the player is presented with a grid of squares. Each of these squares may conceal a mine. When the player clicks on a square, it is revealed. If the square is a mine, the game is over. If the …

Study Of Rna Secondary Structure Prediction Algorithms, Lisa Yu

Master's Projects

Dynamic programming algorithms such as Nussinov algorithm and Zuker algorithm define criteria to search the most stable RNA secondary structures. Stochastic Context-Free Grammar (SCFG) predicts the most possible RNA secondary structure using context-free grammar and a defined set of probabilities for each grammar rule. These algorithms form the base of using computer programs to predict RNA secondary structures without pseudoknots. In this report, we review these RNA secondary structure prediction algorithms and present our own software implementations of these algorithms. The Nussinov algorithm is easy to understand. But our results show that the Nussinov algorithm is overly simplified and can …

Compact Representation Of Association Rule, Mien K. Siao

Master's Projects

Bitmap is an extremely efficient way of representing data, but the drawback is that the order of data is fixed in a bitmap. Granular computing is a new theory that frees the bitmap method from fixed order of data in the same manner as linear algebra frees the matrix theory from a fixed basis. To obtain meaningful information using data mining techniques has been a central idea in recent database applications [2]. One of the core techniques in data mining is to find associations (undirected association rules) between attribute values [4]. The complexity of finding associations is often very high. …

Juice: An Svg Rendering Peer For Java Swing, Ignatius Yuwono

Master's Projects

SVG—a W3C XML standard—is a relatively new language for describing low-level vector drawings. Due to its cross-platform capabilities and support for events, SVG may potentially be used in interactive GUIs/graphical front-ends. However, a complete and full-featured widget set for SVG does not exist at the time of this writing. I have researched and implemented a framework which retargets a complete and mature raster- based widget library—the JFC Swing GUI library—into a vector-based display substrate: SVG. My framework provides SVG with a full-featured widget set, as well as augmenting Swing’s platform coverage. Furthermore, by using bytecode instrumentation techniques, my Swing to …

The Roles Of Digital Libraries In Teaching And Learning Geography, Chew-Hung Chang, John Hedberg, Tiong-Sa Teh, Ee Peng Lim

Research Collection School Of Computing and Information Systems

Adopting a problem-centred approach helps students to learn Geography more effectively as they are able to identify and generalize about where different resources or activities are spatially located and they learn to associate certain patterns and processes with geographical changes. In an era where web-based student-centred inquiry is gaining popularity as a mode of learning Geography, the role of digital libraries as delivery trucks (in Clark’s terminology, 1983) needs to be better understood. An obvious affordance of the digital library is that it organizes information around themes for problems to be solved. This paper describes a developmental project to build …

Advances In Data Modeling Research, G. Allen, A. Bajaj, V. Khatri, S. Ram, Keng Siau

Research Collection School Of Computing and Information Systems

In this paper, we summarize the discussions of the panel on "Advances in Data Modeling Research," held at the Americas Conference on Information Systems (AMCIS) in 2005. We focus on four primary areas where data modeling research offers rich opportunities: spatio-temporal semantics, genome research, ontological analysis and empirical evaluation of existing models. We highlight past work in each area and also discuss open questions, with a view to promoting future research in the overall data modeling area.

Knowledge Modeling And Its Application In Life Sciences: A Tale Of Two Ontologies, Satya S. Sahoo, Christopher Thomas, Amit P. Sheth, William S. York, Samir Tartir

Kno.e.sis Publications

High throughput glycoproteomics, similar to genomics and proteomics, involves extremely large volumes of distributed, heterogeneous data as a basis for identification and quantification of a structurally diverse collection of biomolecules. The ability to share, compare, query for and most critically correlate datasets using the native biological relationships are some of the challenges being faced by glycobiology researchers. As a solution for these challenges, we are building a semantic structure, using a suite of ontologies, which supports management of data and information at each step of the experimental lifecycle. This framework will enable researchers to leverage the large scale of glycoproteomics …

Honeypots: How Do You Know When You Are Inside One?, Simon Innes, Craig Valli

Research outputs pre 2011

This paper will discuss honeypots and their use and effectiveness as a security measure in an IT environment. It will specifically discuss various methods of honeypot implementations. Furthermore, this paper will look into the weaknesses within a honeypot system. This will include attacks against honeypots and methods a hacker may use to detect the presence of a honeypot or the fact that he/she is actually inside one. Finally this paper will discuss methods of further securing honeypots and ways the community is dealing with security flaws as they are identified

Developing Recordkeeping: Australians Working Together, Karen Anderson

Research outputs pre 2011

Australia has nine governments, each with their own archives and records legislation. This multiplicity of jurisdictions has the potential for generating divergence and incompatibility of standards. However, the Australian recordkeeping community works together with the result that consistent, complementary standards are not only customised to local legislative requirements and situations, but will in future ensure interoperability and ease of transfer of records wherever necessary. Australian recordkeeping professionals have a sound history of working together. The Implementation Guidelines for the current International standard for records management, /SO15489.2-2001, were adopted and adapted from those in an earlier Australian Standard for records management, …

Samats : Semi-Automated Modelling And Texturing System, Joe Hegarty

Masters

The creation of detailed 3D (three-dimensional) building models has become an area of considerable research over the last couple of decades. The accurate modelling of buildings offers LBS (Location Based Services) applications in planning, cultural heritage, tourism and e-commerce among others. The approach taken by the majority of contemporary modelling systems that use terrestrial imagery taken from arbitrary locations requires the user to carry out manual correspondences across the image set. These correspondences are used for two purposes. Firstly, the correspondences are used to determine the exterior orientation parameters (position and orientation) of the cameras used to capture each image. …

Journey To The Center Of The Core: Computers And The Internet In The Core Curriculum, Jorge Pérez, Meg C. Murray

Faculty Articles

Computers, digitalization and the Internet have transformed modern society. Commerce, education, communication and socialization will never be the same. Surprisingly, many universities do not require a computing course in the core curriculum. Critical information technology (IT) competencies are often taken for granted, to the detriment of students who lack computing and Internet skills. This paper describes an initiative undertaken by a computer science and information systems department to assess and remediate IT skills needed by all university students, regardless of major. The project is evolving along several dimensions: identification of discipline-independent IT competencies, assessment of IT skills among current and …

Analysis Of Aircraft Arrival Delay And Airport On-Time Performance, Yuqiong Bai

Electronic Theses and Dissertations

While existing grid environments cater to specific needs of a particular user community, we need to go beyond them and consider general-purpose large-scale distributed systems consisting of large collections of heterogeneous computers and communication systems shared by a large user population with very diverse requirements. Coordination, matchmaking, and resource allocation are among the essential functions of large-scale distributed systems. Although deterministic approaches for coordination, matchmaking, and resource allocation have been well studied, they are not suitable for large-scale distributed systems due to the large-scale, the autonomy, and the dynamics of the systems. We have to seek for nondeterministic solutions for …

Image-Based Material Editing, Erum Khan

Electronic Theses and Dissertations

Photo editing software allows digital images to be blurred, warped or re-colored at the touch of a button. However, it is not currently possible to change the material appearance of an object except by painstakingly painting over the appropriate pixels. Here we present a set of methods for automatically replacing one material with another, completely different material, starting with only a single high dynamic range image, and an alpha matte specifying the object. Our approach exploits the fact that human vision is surprisingly tolerant of certain (sometimes enormous) physical inaccuracies. Thus, it may be possible to produce a visually compelling …

Topologies Of Agents Interactions In Knowledge Intensive Multi-Agentsystems For Networked Information Services, Qiuming Zhu

Computer Science Faculty Publications

Agents in a multi-agent system (mAS) could interact and cooperate in many different ways. The topology of agent interaction determines how the agents control and communicate with each other, what are the control and communication capabilities of each agent and the whole system, and how efficient the control and communications are. In consequence, the topology affects the agents’ ability to share knowledge, integrate knowledge, and make efficient use of knowledge in MAS. This paper presents an overview of four major MAS topologic models, assesses their advantages and disadvantages in terms of agent autonomy, adaptation, scalability, and efficiency of cooperation. Some …

Experiments With Sat-Based Answer Set Programming, Enrico Giunchiglia, Yuliya Lierler, Marco Maratea, A. Tacchella

Computer Science Faculty Proceedings & Presentations

Answer Set Programming (ASP) emerged in the late 1990s as a new logic programming paradigm which has been successfully applied in various application domains. Propositional satisfiability (SAT) is one of the most studied problems in Computer Science. ASP and SAT are closely related: Recent works have studied their relation, and efficient SAT-based ASP solvers (like assat and Cmodels) exist. In this paper we report about (i) the extension of the basic procedures in Cmodels in order to incorporate the most popular SAT reasoning strategies, and (ii) an extensive comparative analysis involving also other state-of-the-art answer set solvers. The experimental analysis …

Organizational Transformation Through Business Models: A Framework For Business Model Design, Peter Keen, Sajda Qureshi

Information Systems and Quantitative Analysis Faculty Proceedings & Presentations

Organizations are increasingly inter-connected as they source talent, goods and services from other organizations located in disparate parts of the world. They seek new ways of creating value for themselves, customers and partners. They operate outside and across traditional industry boundaries and definitions. These innovations have lead to a focus on business models as a fundamental statement of direction and identity. This paper highlights what is known about the business model concept and where and why it differs from more established concepts of business strategy. It illustrates how the application of business models has transformed organizations. The contribution of this …