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Articles 1111 - 1140 of 1285
Full-Text Articles in Computer Sciences
An Attitude And Perception Study Of Wireless Network Usage In Home Environments, Patryk Szewczyk
An Attitude And Perception Study Of Wireless Network Usage In Home Environments, Patryk Szewczyk
Theses : Honours
Research on the use of 802.11 wireless networking and wireless security has in the past focused predominantly on corporations who generally have access to resources specifically allocated to computer and network security. Research has also focused on identifying the flaws in wireless network security, and developing stronger and safer methods which may be incorporated. To date there has been a lack of research into determining what the individual at home perceives towards wireless security. As broadband Internet connections are now predominantly chosen, the amount of available bandwidth open to exploitation is significantly higher than the now becoming obsolete dialup connection. …
Automated Photo-Identification Of Cetaceans : An Integrated Software Solution, Daniel Griggs
Automated Photo-Identification Of Cetaceans : An Integrated Software Solution, Daniel Griggs
Theses : Honours
This study investigates current techniques used for automated photo-identification of cetaceans (i.e. dolphins and whales). The primary focus constitutes various techniques that can be applied to identify and extract dorsal fins from digital photographs. A comprehensive analysis of these techniques demonstrates the most effective software solution. To further support this analysis, four prototypes are developed to demonstrate the effectiveness of each technique in a practical environment. The analysis bases its final conclusions on test results generated from these prototype software examples. Final conclusions provide recommendations for an effective, accurate, and practical software solution. This software solution allows dorsal fins to …
An Approach To Resolve Data Model Heterogeneities In Multiple Data Sources, Chaiyaporn Chirathamjaree
An Approach To Resolve Data Model Heterogeneities In Multiple Data Sources, Chaiyaporn Chirathamjaree
Research outputs pre 2011
To gain a competitive advantage, it is imperative for executives to be able to obtain one unique view of information, normally scattered across disparate data sources, in an accurate and timely manner. To interoperate data sources which differ structurally and semantically, particular problems occur, for example, problems of changing schema in data sources affect the integrated schema. This paper presents an approach to resolve data model heterogeneities in databases and legacy systems through mediation and wrapping techniques. The system is well supported by the mediated data model (MDM), a semantically-rich data model which can describe and represent heterogeneous data schematically …
Use Of A Weighted Matching Algorithm To Sequence Clusters In Spatial Join Processing, Husen Husen
Use Of A Weighted Matching Algorithm To Sequence Clusters In Spatial Join Processing, Husen Husen
Theses : Honours
One of the most expensive operations in a spatial database is spatial join processing. This study focuses on how to improve the performance of such processing. The main objective is to reduce the Input/Output (I/O) cost of the spatial join process by using a technique called cluster-scheduling. Generally, the spatial join is processed in two steps, namely filtering and refinement. The cluster-scheduling technique is performed after the filtering step and before the refinement step and is part of the housekeeping phase. The key point of this technique is to realise order wherein two consecutive clusters in the sequence have maximal …
A Real-Time Virtual Classroom System With Two-Way Communication For Distance Learning At King Mongkut’S University Of Technology Thonburi, Thailand, Surachai Suksakulchai, Chalathip Chunkul
A Real-Time Virtual Classroom System With Two-Way Communication For Distance Learning At King Mongkut’S University Of Technology Thonburi, Thailand, Surachai Suksakulchai, Chalathip Chunkul
EDU-COM International Conference
Because of high demands for higher education in the provinces of Thailand, the school of Industrial Education and Technology at KMUTT has started off-campus courses since 2002. However, the major problem of operation is distance. To cope with the problem, a real-time virtual classroom system with two-way communication has been developed. The system has to overcome the bandwidth problem, which is the major struggle of web-based learning in Thailand, and to maintain the two-way communication between instructors and students. To cope with those problems, video streaming and live chat systems are used. The technique is the trade-off between two-way and …
Clustering Spatial Data For Join Operations Using Match-Based Partition, Jitian Xiao
Clustering Spatial Data For Join Operations Using Match-Based Partition, Jitian Xiao
Research outputs pre 2011
The spatial join is an operation that combines two sets of spatial data by their spatial relationships. The cost of spatial join could be very high due to the large sizes of spatial objects and the computation-intensive spatial operations. In spatial join processing, a common method to minimize the I/O cost is to partition the spatial objects into clusters and then schedule the processing of the clusters such that the number of times the same objects to be fetched into memory can be minimized. In this paper, we propose a match-based approach to partition a large spatial data set into …
Agent-Based Similarity-Aware Web Document Pre-Fetching, Jitian Xiao
Agent-Based Similarity-Aware Web Document Pre-Fetching, Jitian Xiao
Research outputs pre 2011
This paper presents an agent-based similarity-aware Web document pre-fetching scheme that is built on the similarity-aware Web caching architecture. A set of agents are employed to carry out certain duties such as document similarity detection, identification of relevant access patterns, document prediction and network traffic monitoring for document pre-fetching. Preliminary simulations have been conducted to evaluate the proposed scheme, and the results have shown that the new pre-fetching scheme outperforms existing Web-document pre-fetching algorithms
A Faster Algorithm For Calculating Hypervolume, Lyndon While, Philip Hingston, Luigi Barone, Simon Huband
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
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
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
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
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
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
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
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 …
A Comparison Of Heuristics For Scheduling Spatial Clusters To Reduce I/O Cost In Spatial Join Processing, Jitian Xiao
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
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
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
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, …
Computer Security: Investigating The Impact That Security Specific Education Has On Users’ Behaviour, Samuel David Jones
Computer Security: Investigating The Impact That Security Specific Education Has On Users’ Behaviour, Samuel David Jones
Theses : Honours
A lack in end-user awareness in computer security issues provides the rationale for this investigation. The research considers whether or not the provision of an educational package addressing computer security issues will improve awareness and transform behaviour of end-users in assessing and enacting appropriate responses in computer security situations. A group of twenty participants was studied in detail using a mixed methods research approach. The participants were drawn from a cross section of computer end-users, from elementary to advanced levels of computer literacy. Outcomes include a positive response to the provision of material, however human factors were found to be …
Artificial Neural Networks : A Comparative Study Of Implementations For Human Chromosome Classification, Nancy Akl
Theses : Honours
Artificial neural networks are a popular field of artificial intelligence and have commonly been applied to solve many prediction, classification and diagnostic tasks. One such task is the analysis of human chromosomes. This thesis investigates the use of artificial neural networks (ANNs) as automated chromosome classifiers. The investigation involves the thorough analysis of seven different implementation techniques. These include three techniques using artificial neural networks, two techniques using ANN s supported by another method and two techniques not using ANNs. These seven implementations are evaluated according to the classification accuracy achieved and according to their support of important system measures, …
View Space Linking, Solid Node Compression And Binary Space Partitioning For Visibility Determination In 3d Walk-Throughs, Joel Anderson
View Space Linking, Solid Node Compression And Binary Space Partitioning For Visibility Determination In 3d Walk-Throughs, Joel Anderson
Theses : Honours
Today's 3D games consumers are expecting more and more quality in their games. To enable high quality graphics at interactive rates, games programmers employ a technique known as hidden surface removal (HSR) or polygon culling. HSR is not just applicable to games; it may also be applied to any application that requires quality and interactive rates, including medical, military and building applications. One such commonly used technique for HSR is the binary space partition (BSP) tree, which is used for 3D ‘walk-throughs’, otherwise known as 3D static environments or first person shooters. Recent developments in 3D accelerated hardware technology do …
An Investigation Of Network Security Management Methods, Shamila Anuranga Ratnayake
An Investigation Of Network Security Management Methods, Shamila Anuranga Ratnayake
Theses : Honours
Network Management (NM) is concerned with reducing complexity and managing cost. The traditional NM tools and techniques are based on the Open System Interconnection (OSI) NM model. However, several drawbacks have been identified when managing a network using traditional NM tools (Sarkar & Verma, 2001). Network security is a major issue when managing a network. Even though the technology assists to reduce security risks, unless properly managed, the security measures may not do the job as expected. The State Model (SM) diagram is a new method, which may assists in managing the network. This new method may provide functionality not …
2d-Barcode For Mobile Devices, Hiroko Kato
2d-Barcode For Mobile Devices, Hiroko Kato
Theses : Honours
2D-barcodes were designed to carry significantly more data than its 1D counterpart. These codes are often used in industrial information tagging applications where high data capacity, mobility, and data robustness are required. Wireless mobile devices such as camera phones and Portable Digital Assistants (PDAs) have evolved from just a mobile voice communication device to what is now a mobile multimedia computing platform. Recent integration of these two mobile technologies has sparked some interesting applications where 2D-barcodes work as visual tags and/or information source and camera phones performs image processing tasks on the device itself. One of such applications is hyperlink …
Security Governance: Its Impact On Security Culture, K. Koh, A. B. Ruighaver, S. B. Maynard, A. Ahmad
Security Governance: Its Impact On Security Culture, K. Koh, A. B. Ruighaver, S. B. Maynard, A. Ahmad
Research outputs pre 2011
While there is an overwhelming amount of literature that recognises the need for organisations to create a security culture in order to effectively manage security, little is known about how to create a good security culture or even what constitutes a good security culture. In this paper, we report on one of two case studies performed to examine how security governance influences security culture and in particular, the sense of responsibility and ownership of security. The results indicate that although the structural and functional mechanisms in security governance are influencing factors, it is the extent of social participation that may …
Risk Management In Crm Security Management, Mahdi Seify
Risk Management In Crm Security Management, Mahdi Seify
Research outputs pre 2011
In an increasing competitive world, marketing survival can be depended simply on timely new information on customers and market trend. One of the most important strategies in CRM (Customer Relationship Management) is to capture enough information from customers and using this information carefully [Ryals , Tinsley]. Of course security of this information is very important in CRM data management [Bryan]. Data management is a method for scheduling and controlling data saving, recovering and processing. This activity has been done continually or periodically[Bryan]. Security level of this information depends on the security policy of the organization. CRM security policy is the …
Understanding Transition Towards Information Security Culture Change, Leanne Ngo, Wanlei Zhou, Matthew Warren
Understanding Transition Towards Information Security Culture Change, Leanne Ngo, Wanlei Zhou, Matthew Warren
Research outputs pre 2011
Transitioning towards an information security culture for organisations has not been adequately explored in the current security and management literature. Many authors have proposed how information security culture can be created, fostered and managed within organisations, but have failed to adequately address the transition process towards information security culture change, particularly for small medium enterprises (SMEs). This paper aims to (1) recapitulate key developments and trends within information security culture literature; (2) explore in detail the transition process towards organisational change; (3) adapt the transition process with respects to the key players involved in transition and propose a transition model …
Smart Card Authentication For Mobile Devices, Wayne Jansen, Serban Gavrila, Clément Séveillac
Smart Card Authentication For Mobile Devices, Wayne Jansen, Serban Gavrila, Clément Séveillac
Research outputs pre 2011
While mobile handheld devices provide productivity benefits, they also pose new risks. User authentication is the best safeguard against the risk of unauthorized use and access to a device’s contents. This paper describes two novel types of smart card with unconventional form factors, designed to take advantage of common interfaces built into many current handheld devices.