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Articles 631 - 660 of 1285
Full-Text Articles in Computer Sciences
Accountable-Ehealth Systems: The Next Step Forward For Privacy, Randike Gajanayake, Tony Iannella, Bill Lane, Tony Sahama
Accountable-Ehealth Systems: The Next Step Forward For Privacy, Randike Gajanayake, Tony Iannella, Bill Lane, Tony Sahama
Research outputs 2012
EHealth systems promise enviable benefits and capabilities for healthcare, yet the technologies that make these capabilities possible brings with them undesirable drawback such as information security related threats which need to be appropriately addressed. Lurking in these threats are patient privacy concerns. Resolving these privacy concerns have proven to be difficult since they often conflict with information requirements of healthcare providers. It is important to achieve a proper balance between these requirements. We believe that information accountability can achieve this balance. In this paper we introduce accountable-eHealth systems. We will discuss how our designed protocols can successfully address the aforementioned …
An Exploratory Study Of The Implementation Of Electronic Health Records: A Two Country Comparison, Helen Cripps, Craig Standing, Vesna Prijatelj
An Exploratory Study Of The Implementation Of Electronic Health Records: A Two Country Comparison, Helen Cripps, Craig Standing, Vesna Prijatelj
Research outputs 2012
The adoption of electronic health records has been significantly slower in Australia than many European countries. This paper compares the implementation process in Australia with Slovenia, looking at the benefits, drawbacks and success factors of e-health implementation. The authors use case studies collected in each country to discuss issues around e-health implementation. Though Slovenia has progressed much further down the road of e-health the commonality of the experiences between both cases was striking.
Wikis: Transactive Memory Systems In Digital Form, Paul Jackson
Wikis: Transactive Memory Systems In Digital Form, Paul Jackson
Research outputs 2012
Wikis embed information about authors, tags, hyperlinks and other metadata into the information they create. Wiki functions use this metadata to provide pointers which allow users to track down, or be informed of, the information they need. In this paper we provide a firm theoretical conceptualization for this type of activity by showing how this metadata provides a digital foundation for a Transactive Memory System (TMS). TMS is a construct from group psychology which defines directory-based knowledge sharing processes to explain the phenomenon of "group mind". We analyzed the functions and data of two leading Wiki products to understand where …
Use Of Information And Communication Technology (Ict) Tools By Rural Famers In Ratnagiri District Of Maharashtra, India, Leisa Armstrong, N. Gandhi
Use Of Information And Communication Technology (Ict) Tools By Rural Famers In Ratnagiri District Of Maharashtra, India, Leisa Armstrong, N. Gandhi
Research outputs 2012
This study made an attitude assessment of farmers from the rural villages of Ratnagiri district of Maharashtra in the dissemination of agricultural information using Information and Communication technologies. A structured questionnaire and interviews were used to gather information on a number of aspects related to the use of ICT from randomly selected farmers from one Tehsil and key stakeholders (government officials and agricultural industry workers). Two different questionnaires were provided to farmers and key stakeholders. The questionnaire completed by the farmer participants sought general demographic data, education level and information concerning household income and their agricultural activities. Information related to …
Real-Time Evolutionary Learning Of Cooperative Predator-Prey Strategies, Mark Wittkamp, Luigi Barone, Philip Hingston, Lyndon While
Real-Time Evolutionary Learning Of Cooperative Predator-Prey Strategies, Mark Wittkamp, Luigi Barone, Philip Hingston, Lyndon While
Research outputs 2012
Despite games often being used as a testbed for new computational intelligence techniques, the majority of artificial intelligence in commercial games is scripted. This means that the computer agents are non-adaptive and often inherently exploitable because of it. In this paper, we describe a learning system designed for team strategy development in a real time multi-agent domain. We test our system in a prey and predators domain, evolving adaptive team strategies for the predators in real time against a single prey opponent. Our learning system works by continually training and updating the predator strategies, one at a time for a …
Science Or Experience; What Is More Relevant ?, Kenneth Fowle, Hadyn Green
Science Or Experience; What Is More Relevant ?, Kenneth Fowle, Hadyn Green
Research outputs 2012
It is very important that when we use science to determine the validity of evidence or information that it is done in a manner that is acceptable to the scientific community and the legal community, but what happens when “experience” is used. The use of forensic practitioners to provide „expert‟ evidence and opinion must meet the Daubert/Frye and now Kumho tests. This paper will endeavour to demonstrate .what is best for a practitioner to have and what does the judiciary require for „expert‟ evidence to be accepted? Science and/or Experience, what is more relevant? Evidence and the Courts depend upon …
On The Effectiveness Of Intrusions Into Zigbee-Based Wireless Sensor Networks, Michael Johnstone, Jeremy Jarvis
On The Effectiveness Of Intrusions Into Zigbee-Based Wireless Sensor Networks, Michael Johnstone, Jeremy Jarvis
Research outputs 2012
Wireless Sensor Networks are becoming popular as a means of collecting data by military organisations, public utilities, motor vehicle manufacturers and security firms. Unfortunately, the devices on such networks are often insecure by default, which creates problems in terms of the confidentiality and integrity of data transmitted across such networks. This paper discusses attacks that were successful on a simple network consisting of nodes using the ZigBee protocol stack and proposes defences to thwart these attacks, thus leading to increased user confidence in the ability of organisations to provide secure and effective services. The outcomes were that it was possible …
An Australian Perspective On The Challenges For Computer And Network Security For Novice End-Users, Patryk Szewczyk
An Australian Perspective On The Challenges For Computer And Network Security For Novice End-Users, Patryk Szewczyk
Research outputs 2012
A good portion of today's investigations include, at least in part, an examination of the user's web history. Although it has lost ground over the past several years, Microsoft's Internet Explorer still accounts for a large portion of the web browser market share. Most users are now aware that Internet Explorer will save browsing history, user names, passwords and form history. Consequently some users seek to eliminate these artifacts, leaving behind less evidence for examiners to discover during investigations. However, most users, and probably a good portion of examiners are unaware Automatic Crash Recovery can leave a gold mine of …
Assessing The Accessibility Of E-Learning, Morten Goodwin, Iain Sutherland, Frode Roarson, Tom Drange
Assessing The Accessibility Of E-Learning, Morten Goodwin, Iain Sutherland, Frode Roarson, Tom Drange
Research outputs 2012
Equal participation for people with special needs is an important objective in education politics. Governments have a strong emphasis on enabling education for all citizens. The trend of using e-learning both for on campus and remote delivery of students has the potential of enabling new opportunities for people who previously faced challenges following education. On the other hand, providing online education bears the risk of creating new barriers. This paper examines different stages of providing educational content and delivering teaching material online. This is based on practical experiences from Noroff University College providing a bachelor degree in a security related …
The 2011 Idn Homograph Attack Mitigation Survey, Peter Hannay, Gregory Baatard
The 2011 Idn Homograph Attack Mitigation Survey, Peter Hannay, Gregory Baatard
Research outputs 2012
The advent of internationalized domain names (IDNs) has introduced a new threat, with the non-English character sets allowing for visual mimicry of domain names. Whilst this potential for this form of attack has been well recognized, many applications such as Internet browsers and e-mail clients have been slow to adopt successful mitigation strategies and countermeasures. This research examines those strategies and countermeasures, identifying areas of weakness that allow for homograph attacks. As well as examining the presentation of IDNs in e-mail clients and Internet browser URL bars, this year’s study examines the presentation of IDNs in browser-based security certificates and …
Exploration Games Played On A Ddr Pad Can Constitute Beneficial Physical Exercise, Kimthy Nguyen, Bohan Li, Martin Masek, Yuwanuch Gulatee
Exploration Games Played On A Ddr Pad Can Constitute Beneficial Physical Exercise, Kimthy Nguyen, Bohan Li, Martin Masek, Yuwanuch Gulatee
Research outputs 2012
The addition of an exercise component to computer games is a method that attempts to increase exercise compliance among the population. Various attempts at such games have been made, both commercially and as research projects, but the set of studied game mechanics that are both entertaining and provide beneficial exercise are relatively small. In our work, a game mechanic was designed for a floor-based input controller (DDR Pad). Rather than the standard mechanic usually employed for this device, our approach allows the player to explore a virtual world, requiring exertive movements on the input device in order to progress. The …
Noise Tolerance For Real-Time Evolutionary Learning Of Cooperative Predator-Prey Strategies, Mark Wittkamp, Luigi Barone, Philip Hingston, Lyndon While
Noise Tolerance For Real-Time Evolutionary Learning Of Cooperative Predator-Prey Strategies, Mark Wittkamp, Luigi Barone, Philip Hingston, Lyndon While
Research outputs 2012
Learning team-based strategies in real-time is a difficult task, much more so in the presence of noise. In our previous work in the Prey and Predators domain we introduced an algorithm capable of evolving cooperative team strategies in real-time using fitness evaluations against a perfect opponent model. This paper continues our work within the same domain, training a team of predators to capture a prey. We investigate the effect of varying degrees of opponent model noise in our learning system. In the presence of and in the effort to mitigate the effects of such noise we present modifications to our …
Using Monte Carlo Tree Search For Replanning In A Multistage Simultaneous Game, Daniel Beard, Philip Hingston, Martin Masek
Using Monte Carlo Tree Search For Replanning In A Multistage Simultaneous Game, Daniel Beard, Philip Hingston, Martin Masek
Research outputs 2012
In this study, we introduce MC-TSAR, a Monte Carlo Tree Search algorithm for strategy selection in simultaneous multistage games. We evaluate the algorithm using a battle planning scenario in which replanning is possible. We show that the algorithm can be used to select a strategy that approximates a Nash equilibrium strategy, taking into account the possibility of switching strategies part way through the execution of the scenario in the light of new information on the progress of the battle.
A Multimodal Problem For Competitive Coevolution, Philip Hingston, Tirtha Ranjeet, Chiou Peng Lam, Martin Masek
A Multimodal Problem For Competitive Coevolution, Philip Hingston, Tirtha Ranjeet, Chiou Peng Lam, Martin Masek
Research outputs 2012
Coevolutionary algorithms are a special kind of evolutionary algorithm with advantages in solving certain specific kinds of problems. In particular, competitive coevolutionary algorithms can be used to study problems in which two sides compete against each other and must choose a suitable strategy. Often these problems are multimodal - there is more than one strong strategy for each side. In this paper, we introduce a scalable multimodal test problem for competitive coevolution, and use it to investigate the effectiveness of some common coevolutionary algorithm enhancement techniques.
A Technical Guide To Effective And Accessible Web Surveys, Gregory Baatard
A Technical Guide To Effective And Accessible Web Surveys, Gregory Baatard
Research outputs 2012
The Internet is becoming an increasingly prominent medium for the administration of surveys. Although individual findings vary, the majority of the literature agrees that the appropriateness and response rates of web surveys is expected to rise in the future as we enter a generation of "digital natives" and mail-based communication becomes increasingly antiquated. Just about every aspect and tenet of traditional survey methodology has received attention in academic literature, positioning it as one of the most mature data collection techniques and a mainstay in all areas of research. While much of this accumulated knowledge is applicable and relevant to web …
Coevolutionary Algorithms For The Optimization Of Strategies For Red Teaming Applications, Tirtha Ranjeet
Coevolutionary Algorithms For The Optimization Of Strategies For Red Teaming Applications, Tirtha Ranjeet
Theses: Doctorates and Masters
Red teaming (RT) is a process that assists an organization in finding vulnerabilities in a system whereby the organization itself takes on the role of an “attacker” to test the system. It is used in various domains including military operations. Traditionally, it is a manual process with some obvious weaknesses: it is expensive, time-consuming, and limited from the perspective of humans “thinking inside the box”. Automated RT is an approach that has the potential to overcome these weaknesses. In this approach both the red team (enemy forces) and blue team (friendly forces) are modelled as intelligent agents in a multi-agent …
A Phishing Model And Its Applications To Evaluating Phishing Attacks, Narasimha Shashidhar, Lei Chen
A Phishing Model And Its Applications To Evaluating Phishing Attacks, Narasimha Shashidhar, Lei Chen
International Cyber Resilience conference
Phishing is a growing threat to Internet users and causes billions of dollars in damage every year. In this paper, we present a theoretical yet practical model to study this threat in a formal manner. While it is folklore knowledge that a successful phishing attack entails creating messages that are indistinguishable from the natural, expected messages by the intended victim, this concept has not been formalized. Our model captures phishing in terms of this indistinguishability between the natural and phishing message distributions. To the best of our knowledge, this is the first study that places phishing on a concrete theoretical …
Gap Analysis Of Intrusion Detection In Smart Grids, Nishchal Kush, Ernest Foo, Ejaz Ahmed, Irfan Ahmed, Andrew Clark
Gap Analysis Of Intrusion Detection In Smart Grids, Nishchal Kush, Ernest Foo, Ejaz Ahmed, Irfan Ahmed, Andrew Clark
International Cyber Resilience conference
Given the recent emergence of the smart grid and smart grid related technologies, their security is a prime concern. Intrusion detection provides a second line of defence. However, conventional intrusion detection systems (IDSs) are unable to adequately address the unique requirements of the smart grid. This paper presents a gap analysis of contemporary IDSs from a smart grid perspective. This paper highlights the lack of adequate intrusion detection within the smart grid and discusses the limitations of current IDSs approaches. The gap analysis identifies current IDSs as being unsuited to smart grid application without significant changes to address smart grid …
A Threat To Cyber Resilience: A Malware Rebirthing Botnet, Murray Brand, Craig Valli, Andrew Woodward
A Threat To Cyber Resilience: A Malware Rebirthing Botnet, Murray Brand, Craig Valli, Andrew Woodward
International Cyber Resilience conference
This paper presents a threat to cyber resilience in the form of a conceptual model of a malware rebirthing botnet which can be used in a variety of scenarios. It can be used to collect existing malware and rebirth it with new functionality and signatures that will avoid detection by AV software and hinder analysis. The botnet can then use the customized malware to target an organization with an orchestrated attack from the member machines in the botnet for a variety of malicious purposes, including information warfare applications. Alternatively, it can also be used to inject known malware signatures into …
Why Australia's E-Health System Will Be A Vulnerable National Asset , Patricia A. Williams
Why Australia's E-Health System Will Be A Vulnerable National Asset , Patricia A. Williams
International Cyber Resilience conference
Connecting Australian health services and the e-health initiative is a major talking point currently. Many issues are presented as key to its success including solving issues with confidentiality and privacy. However the largest problem may not be these issues in sharing information but the fact that the point of origin and storage of such records is still relatively insecure. Australia aims to have a Personally Controlled Electronic Health Record in 2012 and this is underpinned by a national network for e-health. It is this very foundation that becomes the critical infrastructure, with general practice the cornerstone for its success. Yet, …
Securing The Elderly: A Developmental Approach To Hypermedia Based Online Information Security For Senior Novice Computer Users, David M. Cook, Patryk Szewczyk, Krishnun Sansurooah
Securing The Elderly: A Developmental Approach To Hypermedia Based Online Information Security For Senior Novice Computer Users, David M. Cook, Patryk Szewczyk, Krishnun Sansurooah
International Cyber Resilience conference
Whilst security threats to the general public continue to evolve, elderly computer users with limited skill and knowledge are left playing catch-up in an ever-widening gap in fundamental cyber-related comprehension. As a definable cohort, the elderly generally lack awareness of current security threats, and remain under-educated in terms of applying appropriate controls and safeguards to their computers and networking devices. This paper identifies that web-based computer security information sources do not adequately provide helpful information to senior citizen end-users in terms of both design and content. It subsequently demonstrates a solution designed with the elderly, yet novice, end-user in mind. …
On The Detection Of Hidden Terrorist Cells Immersed In Peer To Peer Networks, Belinda A. Chiera
On The Detection Of Hidden Terrorist Cells Immersed In Peer To Peer Networks, Belinda A. Chiera
International Cyber Resilience conference
Hidden terrorist cells in high dimensional communications networks arise when terrorists camouflage connectivity to appear randomly connected to the background network. We investigate hidden network detectability when the background network does not support terrorist activities. Using two September 11 terrorist networks as the test bed and a network measure called assortativity, we suggest hidden terrorist networks can behave as Peer-to-Peer networks. We compare the September 11 hidden networks with Peer-to-Peer networks containing embedded terrorist networks, as well as with generic Peer-to-Peer networks. Using Peer-to-Peer characteristics and social network group-based centralities, we show that for certain Peer-to-Peer networks it is possible …
K Anonymous Private Query Based On Blind Signature And Oblivious Transfer, Russell Paulet, Golam Kaosar, Xun Yi
K Anonymous Private Query Based On Blind Signature And Oblivious Transfer, Russell Paulet, Golam Kaosar, Xun Yi
International Cyber Resilience conference
In this paper, we consider a scenario where there are a group of clients and a database server, and a client wishes to query the database, but does not want to reveal her or his query to the server. Current solutions for this problem are based on oblivious transfer, which usually requires high communication overhead. To reduce the communication overhead, we propose three k-anonymous private query protocols. Our first protocol is based on blind signature, where the server cannot determine the identity of the querying client from the group. Our second protocol is based on k-anonymous oblivious transfer, where the …
A Comparative Analysis Of The Security Of Internet Banking In Australia:A Customer Perspective, Panida Subsorn, Sunsern Limwiriyakul
A Comparative Analysis Of The Security Of Internet Banking In Australia:A Customer Perspective, Panida Subsorn, Sunsern Limwiriyakul
International Cyber Resilience conference
Internet has its own inherent security issues in terms of confidentiality, integrity and privacy. The main impact of these kinds of issues is specifically on the banking industry as they have increased their Internet banking facilities in order to reduce costs and provide better services and banking convenience to their Internet banking customers. However, banking customers have not had a choice of Internet banking mainly due to the fact that they are already tied to whatever form of Internet banking that their current bank provides. This paper therefore examined Internet banking security systems in Australian banks by creating the proposed …
Novel Pseudo Random Number Generation Using Variant Logic Framework, Jeffrey Zheng
Novel Pseudo Random Number Generation Using Variant Logic Framework, Jeffrey Zheng
International Cyber Resilience conference
Cyber Security requires cryptology for the basic protection. Among different ECRYPT technologies, stream cipher plays a central role in advanced network security applications; in addition, pseudo-random number generators are placed in the core position of the mechanism. In this paper, a novel method of pseudo-random number generation is proposed to take advantage of the large functional space described using variant logic, a new framework for binary logic. Using permutation and complementary operations on classical truth table to form relevant variant table, numbers can be selected from table entries having pseudo-random properties. A simple generation mechanism is described and shown and …
Disability And The Web: Why Website Accessibility Matters, Vivienne Conway
Disability And The Web: Why Website Accessibility Matters, Vivienne Conway
InfoSci@ECU Seminars
With Australia now transitioning to WCAG 2.0, accessibility has become a critical area requiring a far greater emphasis in the next couple of years. The Australian Human Rights Commission has argued that all Australian websites should meet WCAG 2.0 AA by December 2014. In this presentation, Vivienne will discuss important findings from her study of public library web site accessibility. She will also provide insights into her current PhD investigation and give a first hand account of the Hyderabad conference and global efforts on web site accessibility.
Roundtable On Australian National Data Service, Mathew Wyatt, Julia Gross, Toby Burrows, Salim Taleb
Roundtable On Australian National Data Service, Mathew Wyatt, Julia Gross, Toby Burrows, Salim Taleb
InfoSci@ECU Seminars
The Australian National Data Service (ANDS) (http://ands.org.au/index.html) provides funding to foster partnerships and build infrastructure to enable better local data management in Australian universities and research institutions. Begun in 2008, ANDS has received $72 million of Commonwealth funding. ANDS aims to establish infrastructure and services for an Australian research data commons in which research data with enduring value and the potential for reuse, is preserved and managed for continuing accessibility.
Individualised Responses To Vigilance Demands And Their Management, Fiona M. Donald, Craig Hm Donald
Individualised Responses To Vigilance Demands And Their Management, Fiona M. Donald, Craig Hm Donald
Australian Security and Intelligence Conference
This research uses a task disengagement framework to examine how CCTV surveillance operators and novices respond to the vigilance demands of the detection process. Vigilance tasks are acknowledged as being high in mental workload, yet little is known about how operators deal with these demands in jobs where successful performance is reliant upon sustaining attention on a daily basis. Much vigilance research makes an implicit assumption that people perform tasks that require sustained attention in a passive manner. By contrast, this study examines how operators manage their levels of task engagement and attention resources. The sample consisted of 73 participants …
An Agile It Security Model For Project Risk Assessment, Damien Hutchinson, Heath Maddern, Jason Wells
An Agile It Security Model For Project Risk Assessment, Damien Hutchinson, Heath Maddern, Jason Wells
Australian Information Security Management Conference
There are two fundamental challenges in effectively performing security risk assessment in today's IT projects. The first is the project manager's need to know what IT security risks face the project before the project begins. At this stage IT security staff are unable to answer this question without first knowing the system requirements for the project which are yet to be defined. Second organisations that deal with a large project throughput each year find the current IT security risk assessment process to be tedious and expensive, especially when the same process has to be repeated for each individual project. This …
Can Current Packet Analysis Software Detect Bittorrent Activity Or Extract Files From Btp And Μtp Traffic Streams?, William Pung, Andrew Woodward
Can Current Packet Analysis Software Detect Bittorrent Activity Or Extract Files From Btp And Μtp Traffic Streams?, William Pung, Andrew Woodward
Australian Digital Forensics Conference
BitTorrent is a peer to peer file sharing protocol used to exchange files over the internet, and is used for both legal and illegal activity. Newer BitTorrent client programs are using proprietary UDP based protocols as well as TCP to transmit traffic, and also have the option of encrypting the traffic. This network forensic research examined a number of packet analysis programs to determine whether they could detect such traffic from a packet captures of a complete file transmitted using one of four protocol options. The four states examined were: TCP without encryption, TCP with encryption, μTP without encryption and …