Computer Sciences Commons^™

In-Network Join Processing For Sensor Networks, Hai Yu, Ee Peng Lim, Jun Zhang

Research Collection School Of Computing and Information Systems

Recent advances in hardware and wireless technologies have led to sensor networks consisting of large number of sensors capable of gathering and processing data collectively. Query processing on these sensor networks has to consider various inherent constraints. While simple queries such as select and aggregate queries in wireless sensor networks have been addressed in the literature, the processing of join queries in sensor networks remains to be investigated. In this paper, we present a synopsis join strategy for evaluating join queries in sensor networks with communication efficiency. In this strategy, instead of directly joining two relations distributed in a sensor …

Electrical And Computer Engineering Education In The 21^{St} Century: Issues, Perspectives And Challenges, Levent Sevgi̇

Turkish Journal of Electrical Engineering and Computer Sciences

No abstract provided.

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

Turkish Journal of Electrical Engineering and Computer Sciences

No abstract provided.

Electronic Publishing For Engineering Education, Donald G. Dudley

Turkish Journal of Electrical Engineering and Computer Sciences

Electronic transmission of text is a revolution in progress with a profound effect on engineering education. As with all revolutions, the result is both a threat and a promise. The promise is the ease and speed of dissemination of text. The threat involves serious difficulties that arise in efforts to protect the intellectual property rights of the authors and publishers of the technical information. In this paper, we discuss both the threat and the promise. We highlight the differences in dealing with books and with journals. We give a wide range of examples from both inside of and outside of …

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.

Introducing Students To Communications Concepts Using Optical And Low-Power Wireless Devices, James M. Conrad, Ivan Howitt

Turkish Journal of Electrical Engineering and Computer Sciences

Wireless communication has become an important feature for commercial products and a popular research topic within the last ten years. There are now more mobile phone subscriptions than wired-line subscriptions. Lately, one area of commercial interest has been low-cost, low-power, and short-distance wireless communication used for "personal wireless networks." Technology advancements are providing smaller and more cost effective devices for integrating computational processing, wireless communication, and a host of other functionalities. These embedded communications devices will be integrated into applications ranging from homeland security to industry automation and monitoring. They will also enable custom tailored engineering solutions, creating a revolutionary …

Infusing Technical Communication And Teamwork Within The Ece Curriculum, By April Kedrowicz, Sundy Watanabe, Damon Hall, Cynthia Furse

Turkish Journal of Electrical Engineering and Computer Sciences

This paper highlights a unique approach to infusing formal training and practice in oral and written communication and teamwork development in the Department of Electrical and Computer Engineering (ECE) at the University of Utah. Faculty and graduate (Ph.D.) students from the College of Humanities have teamed up with faculty from engineering to develop communication and teamwork instruction that is integrated into the existing engineering curriculum. These skills are used as a vehicle to provide better understanding of engineering concepts and their applications.

Two, Three And Four-Dimensional Electromagnetics Using Differential Forms, Karl F. Warnick, Peter Russer

Turkish Journal of Electrical Engineering and Computer Sciences

The exterior calculus of differential forms provides a mathematical framework for electromagnetic field theory that combines much of the generality of tensor analysis with the computational simplicity and concreteness of the vector calculus. We review the pedagogical aspects of the calculus of differential forms in providing distinct representations of field intensity and flux density, physically meaningful graphical representations for sources, fields, and fluxes, and a picture of the curl operation that is as simple and intuitive as that of the gradient and divergence. To further highlight the benefits of differential forms notation, we demonstrate the flexibility of the calculus of …

Secure Digital Communication Using Chaotic Symbolic Dynamics, Ajeesh P. Kurian, Sadasivan Puthusserypady

Turkish Journal of Electrical Engineering and Computer Sciences

One of the major hurdles in implementing chaotic communication schemes is the synchronization of chaotic systems. For the last two decades, numerous contributions of varying successes have been made by researchers from different disciplines for the synchronization of chaotic systems. Symbolic dynamics based synchronization method is shown to be capable of providing high quality synchronization (HQS), which is essential for reliable communication. In this work, using this method, a secure digital communication system is proposed. The well known piece-wise linear 1-D map such as tent map and Bernoulli shift map are used for this study. Since the information is dynamically …

A Quantitative Method For Iso 17799 Gap Analysis, Bilge Karabacak, Ibrahim Sogukpinar

All Faculty and Staff Scholarship

ISO/IEC 17799:2005 is one of the leading standards of information security. It is the code of practice including 133 controls in 11 different domains. There are a number of tools and software that are used by organizations to check whether they comply with this standard. The task of checking compliance helps organizations to determine their conformity to the controls listed in the standard and deliver useful outputs to the certification process. In this paper, a quantitative survey method is proposed for evaluating ISO 17799 compliance. Our case study has shown that the survey method gives accurate compliance results in a …

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.

Splai: Computational Finite Element Model For Sensor Networks, Ruzana Ishak, Shadaruddin Salleh, Stephan Olariu, Mohd.Ismail Abdul Aziz

Computer Science Faculty Publications

Wireless sensor network refers to a group of sensors, linked by a wireless medium to perform distributed sensing task. The primary interest is their capability in monitoring the physical environment through the deployment of numerous tiny, intelligent, wireless networked sensor nodes. Our interest consists of a sensor network, which includes a few specialized nodes called processing elements that can perform some limited computational capabilities. In this paper, we propose a model called SPLAI that allows the network to compute a finite element problem where the processing elements are modeled as the nodes in the linear triangular approximation problem. Our model …

A Faster Algorithm For Calculating Hypervolume, Lyndon While, Philip Hingston, Luigi Barone, Simon Huband

Research outputs pre 2011

We present an algorithm for calculating hypervolume exactly, the Hypervolume by Slicing Objectives (HSO) algorithm, that is faster than any that has previously been published. HSO processes objectives instead of points, an idea that has been considered before but that has never been properly evaluated in the literature. We show that both previously studied exact hypervolume algorithms are exponential in at least the number of objectives and that although HSO is also exponential in the number of objectives in the worst case, it runs in significantly less time, i.e., two to three orders of magnitude less for randomly generated and …

Fixture-Scheduling For The Australian Football League Using A Multi-Objective Evolutionary Algorithm, Luigi Barone, Lyndon While, Paul Hughes, Philip Hingston

Research outputs pre 2011

AFL football is a team sport that entertains millions and contributes a huge amount of money to the Australian economy. Scheduling games in the AFL is difficult, as a number of different, often conflicting, factors must be considered. In this paper, we propose the use of a multi-objective evolutionary algorithm for determining such a schedule. We detail the technical details needed to apply a multi-objective evolutionary algorithm to this problem and report on experiments that show the effectiveness of this approach. Comparison with actual schedules used in the AFL demonstrates that this approach could make a useful contribution.

A Preliminary Investigation Into Malware Propagation On Australian Isp Networks Using The Mwcollect Malware Collector Daemon, Craig Valli

Research outputs pre 2011

This paper describes an initial investigation into the propagation of malicious software (malware) that allows for remote command and control of Internet connected machines using the Windows platform in the Australian ISP address space. The research as conducted utilised the mwcollect daemon which is a low interaction honeypot on the Linux platform, to collect the details about the activity. The program mwcollect works by emulation of vulnerable services on the target platform in this case Windows based computers. There were two collectors within the pilot collection system. The machines were running no other Internet services such as http or mail, …

The Insider Threat To Medical Records: Has The Network Age Changed Anything?, Craig Valli

Research outputs pre 2011

There is increasing pressure on medical practices to use digital information systems for storage of patient data. Some consideration is given to protecting these systems from a external or “ hacker” focus. This paper looks at the issue that the increasing use of digital information systems has for insider malfeasance.

Sql Injection - Threats To Medical Systems: The Issues And Countermeasures, Craig Valli

Research outputs pre 2011

A vast majority of medical information systems use Standard Query Language databases (SQL) as the underlying technology to deliver medical records in a timely and efficient manner. SQL is a standardised and well entrenched database technology, which allows for the development of robust, customised applications for information management. In recent years, SQL has been used as the back-end to many successful web client accessible applications. The use of SQL in this manner has been greatly enhanced through the development of server side scripting languages such as Microsoft ASP and open source systems such as PHP. These allow for the representation …

A Forensic Log File Extraction Tool For Icq Instant Messaging Clients, Kim Morfitt, Craig Valli

Research outputs pre 2011

Instant messenger programs such as ICQ are often used by hackers and criminals for illicit purposes and consequently the log files from such programs are of interest in a forensic investigation. This paper outlines research that has resulted in the development of a tool for the extraction of ICQ log file entries. Detailed reconstruction of data from log files was achieved with a number of different ICQ software. There are several limitations with the current design including timestamp information not adjusted for the time zone, data could be altered, and conversations must be manually reconstructed. Future research will aim to …

The 2006 Analysis Of Information Remaining On Disks Offered For Sale On The Second Hand Market, Andrew Jones, Craig Valli, Iain Sutherland, Paula Thomas

Research outputs pre 2011

All organisations, whether in the public or private sector, use computers for the storage and processing of information relating to their business or services, their employees and their customers. A large proportion of families and individuals in their homes now also use personal computers and, both intentionally and inadvertently, often store on those computers personal information. It is clear that most organisations and individuals continue to be unaware of the information that may be stored on the hard disks that the computers contain, and have not considered what may happen to the information after the disposal of the equipment. In …

Establishing A Vendor Neutral Skills Based Framework For Digital Forensics Curriculum Development And Competence Assessment, Craig Valli

Research outputs pre 2011

This paper outlines an approach being undertaken between ECU and the Australian Electronic Evidence Special Advisory Group (EESAG) in the production of vendor neutral skills matrix for developing curriculum and evaluating competence. The framework is constructed using Blooms Taxonomy of Learning. This is a work in progress paper and covers the inital stages of the development

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

Leading Hackers Down The Garden Path, Suen Yek

Research outputs pre 2011

Can a hacker be controlled by predetermined deception? Limiting the decision making capabilities of hackers is one technique of network countermeasure that a honeynet enables. By furnishing a honeynet with a realistic range of services but restricted vulnerabilities, a hacker may be forced to direct their attacks to the only available exploits. This research discusses the deployment of a honeynet configured with a deceptive TELNET and TFTP exploit. Four hackers were invited to attack the honeynet and the analysis of their compromise identified if they engaged in a guided pathway to the intended deception. Hand trace analysis was performed on …

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 …

A Comparison Of Heuristics For Scheduling Spatial Clusters To Reduce I/O Cost In Spatial Join Processing, Jitian Xiao

Research outputs pre 2011

In spatial join processing, a common method to minimize the I/O cost is to partition the spatial objects into clusters, and then to schedule the processing of the clusters in the spatial join processing such that the number of times the same objects to be fetched into memory can be minimized. A key issue of this clustering-and-scheduling approach is how to produce a better sequence of clusters to guide the cluster scheduling thus to reduce the total I/O cost of spatial join processing. This paper describes three cluster sequencing heuristics. An extensive comparison among them has been conducted, and simulation …

Opening Pandora's Box: Teacher Librarianship In The Twenty-First Century, Barbara Combes

Research outputs pre 2011

In a world that is currently struggling to come to terms with the Internet, the exponential explosion in the volume of readily available information and a plethora of delivery modes and resource formats; the role of the teacher librarian and the school library in this new information landscape is murkier than ever before, This presentation looks at how teacher librarians can reinvent themselves and their school libraries to become an essential component of the core business of the school, i.e." teaching and learning, It is all about unlocking hidden talents, facing challenges and taking control.

Use Of Bootable Linux Cds For The Delivery Of Educational Course Content, Craig Valli

Research outputs pre 2011

This paper outlines the processes involved in creating and using bootable Linux/Knoppix compact discs (CDs) as a means of delivering course content to students. An outline of experiences in using these CDs to deliver courses in totally on-line mode is also given.

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, …

Research-Based Web Design & Usability Guidelines [2006 Edition], Michael O. Leavitt, Ben Shneiderman, Robert W. Bailey, Carol Barnum, John Bosley, Barbara Chaparro, Joseph Dumas, Melody Y. Ivory, Bonnie John, Hal Miller-Jacobs, Sanjay J. Koyani, James R. Lewis, Stanley Page, Judith Ramey, Janice (Ginny) Redish, Jean Scholtz, Steve Wigginton, Cari A. Wolfson, Larry E. Wood, Don Zimmerman

Publications

The new edition of the U.S. Department of Health and Human Services’ (HHS) Research-Based Web Design and Usability Guidelines. These guidelines reflect HHS’ commitment to identifying innovative, research-based approaches that result in highly responsive and easy-to-use Web sites for the public.

These guidelines help move us in that direction by providing practical, yet authoritative, guidance on a broad range of Web design and communication issues. Having access to the best available research helps to ensure we make the right decisions the first time around and reduces the possibility of errors and costly mistakes.

P2pcompute - A Peer-To-Peer Computing Model, Jayant Mishra

UNF Graduate Theses and Dissertations

Peer-to-peer (P2P) networks consist of nodes which have both client and server capabilities and on which communication and data sharing is carried on directly between nodes, rather than being arbitrated by an intermediary node. The P2P architecture was popularized by file-sharing, one of the widely-used applications of the Internet. Many applications that are based on this architecture have been developed. It also provides an efficient platform to harness the computing power of a network of desktop computers. P2P computing power can help solve computationally complex problems that require powerful supercomputers. However, it has not been as widely used as the …