Computer Sciences Commons^™

Mapping The Organizational Relations Within Physical Security’S Body Of Knowledge: A Management Heuristic Of Sound Theory And Best Practice, Richard Coole, David J. Brooks

Australian Security and Intelligence Conference

Security Science education at university levels is still in its infancy, with little agreement towards knowledge, curriculum and competency. Therefore, it is essential that educators draw on relevant literature highlighting means of efficient and effective knowledge transfer for tertiary students within the Security Science domain. Such knowledge transfer will reduce the gap between academic knowledge (explicit) and professional competency (tacit knowledge). This paper presents phase one of a multiphase study. A qualitative “systems based knowledge structure” of security domain categories has been conceptually mapped as a domain heuristic. The heuristic drew on research highlighting that experts have both richer depths …

Wi-Fi Security: Wireless With Confidence, Lucas Jacob, Damien Hutchinson, Jemal Abawajy

Australian Security and Intelligence Conference

Since the IEEE ratification of the 802.11 standard in 1999, continuous exploits have been discovered compromising the confidentiality, integrity and availability of 802.11 networks. This paper describes the justification for a project to assess the security status of wireless network usage in society. It reviews the status of both commercial and residential approaches to wireless network security in three major Victorian cities, Melbourne, Geelong and Mornington, in Australia. By War Driving these suburbs, actual data was gathered to indicate the security status of wireless networks and give a representation of modern attitudes towards wireless security for the sample population. Preliminary …

Information Evaluation: How One Group Of Intelligence Analysts Go About The Task, John Joseph, Jeff Corkill

Australian Security and Intelligence Conference

Source and information evaluation is identified as being a critical element of the analytical process and production of intelligence products. However there is concern that in reality evaluation is being carried out in a cursory fashion involving limited intellectual rigour. Poor evaluation is also thought to be a causal factor in the failure of intelligence. This study examined the process of information and source evaluation as understood and practiced by, six West Australian Police Force, (WAPOL) intelligence analysts. Data was gathered by use of a focus group with that data being compared against the current literature. It was discovered that …

Semi-Automatic Management Of Knowledge Bases Using Formal Ontologies, Andreas Textor

Theses

This thesis presents an approach that deals with the ever-growing amount of data in knowledge bases, especially concerning knowledge interoperability and formal representation of domain knowledge. There arc multiple issues that must be addressed with current systems. A multitude of different formats, sources and tools exist in a domain, and it is desirable to develop their use further towards a standardised environment. Such an environment should support both the representation and processing of data from this domain, and the connection to other domains, where necessary. In order to manage large amounts of data, it should be possible to perform whatever …

A Qos Aware Framework For Wireless Sensor Networks In Industrial Environments, Berta Carballido Villaverde

Theses

Wireless Sensor Networks (WSNs) are a key enabling technology for industrial monitoring applications where the use of wireless infrastructure allows high adaptivity and low cost in terms of installation and retrofitting. Although WSNs present several advantages over traditional wired monitoring systems, there is significant concern as to the reliability of wireless communications due to the unpredictability of the wireless channel, which is inhibiting the widespread adoption of the technology. Furthermore, due to the diverse range of monitoring applications that are found in industrial environments and their differing requirements, there is a need for quality of service (QoS) provisioning so that …

Survey On Cloud Forensics And Critical Criteria For Cloud Forensic Capability: A Preliminary Analysis, Keyun Ruan, Ibrahim Baggili, Joe Carthy, Tahar Kechadi

Electrical & Computer Engineering and Computer Science Faculty Publications

In this paper we present the current results and analysis of the survey “Cloud forensics and critical criteria for cloud forensic capability” carried out towards digital forensic experts and practitioners. This survey was created in order to gain a better understanding on some of the key questions of the new field - cloud forensics - before further research and development. We aim to understand concepts such as its definition, the most challenging issues, most valuable research directions, and the critical criteria for cloud forensic capability.

Cat Detect (Computer Activity Timeline Detection): A Tool For Detecting Inconsistency In Computer Activity Timelines, Andrew Marrington, Ibrahim Baggili, George Mohay, Andrew Clark

Electrical & Computer Engineering and Computer Science Faculty Publications

The construction of timelines of computer activity is a part of many digital investigations. These timelines of events are composed of traces of historical activity drawn from system logs and potentially from evidence of events found in the computer file system. A potential problem with the use of such information is that some of it may be inconsistent and contradictory thus compromising its value. This work introduces a software tool (CAT Detect) for the detection of inconsistency within timelines of computer activity. We examine the impact of deliberate tampering through experiments conducted with our prototype software tool. Based on the …

Robust Integral Of Neural Network And Sign Of Tracking Error Control Of Uncertain Nonlinear Affine Systems Using State And Output Feedback, Qinmin Yang, Sarangapani Jagannathan, Youxian Sun

Electrical and Computer Engineering Faculty Research & Creative Works

This paper presents a novel state and output feedback control law for the tracking control of a class of multi-input-multi-output (MIMO) continuous time nonlinear systems with unknown dynamics and disturbance input. First the state feedback-based control law is designed which consists of the robust integral of a neural network (NN) output plus the sign of the tracking error signal multiplied with an adaptive gain. the two-layer NN learns the system dynamics in an online manner while the NN residual reconstruction errors and the bounded system disturbances are overcome by the error sign signal. Both of the NN output and error …

Data-Aware Workflow Scheduling In Heterogeneous Distributed Systems, Dengpan Yin

LSU Doctoral Dissertations

Data transferring in scientific workflows gradually attracts more attention due to large amounts of data generated by complex scientific workflows will significantly increase the turnaround time of the whole workflow. It is almost impossible to make an optimal or approximate optimal scheduling for the end-to-end workflow without considering the intermediate data movement. In order to reduce the complexity of the workflow-scheduling problem, most researches done so far are constrained by many unrealistic assumptions, which result in non-optimal scheduling in practice. A constraint imposed by most researchers in their algorithms is that a computation site can only start the execution of …

Advanced Semantics For Accelerated Graph Processing, Dylan Thomas Stark

LSU Doctoral Dissertations

Large-scale graph applications are of great national, commercial, and societal importance, with direct use in fields such as counter-intelligence, proteomics, and data mining. Unfortunately, graph-based problems exhibit certain basic characteristics that make them a poor match for conventional computing systems in terms of structure, scale, and semantics. Graph processing kernels emphasize sparse data structures and computations with irregular memory access patterns that destroy the temporal and spatial locality upon which modern processors rely for performance. Furthermore, applications in this area utilize large data sets, and have been shown to be more data intensive than typical floating-point applications, two properties that …

Understanding The Elements Of Executable Architectures Through A Multi-Dimensional Analysis Framework, Edwin A. Shuman Iv

Computational Modeling & Simulation Engineering Theses & Dissertations

The objective of this dissertation study is to conduct a holistic investigation into the elements of executable architectures. Current research in the field of Executable Architectures has provided valuable solution-specific demonstrations and has also shown the value derived from such an endeavor. However, a common theory underlying their applications has been missing.

This dissertation develops and explores a method for holistically developing an Executable Architecture Specification (EAS), i.e., a meta-model containing both semantic and syntactic information, using a conceptual framework for guiding data coding, analysis, and validation. Utilization of this method resulted in the description of the elements of executable …

Optimization And Analysis Of A Model Of The Mammalian Circadian Clock, Andrew M. Cox

Honors Theses

Circadian rhythms are found in plants, animals, fungi, and bacteria and are responsible for the regulation of many biological, physiological, behavioral, and metabolic activities. In mammals, the “master” clock is embedded in the suprachiasmatic nuclei (SCN) of the anterior hypothalamus. It is composed of thousands of cells signaling each other to synchronize and produce a unified rhythm. It is hypothesized that this communication enables the clock to rescue rhythms in gene knockout experiments that destroy oscillations at the single cell level. Henry Mirsky developed a model of this gene regulatory network within a single cell in 2009, but the published …

Penetration Of Zigbee-Based Wireless Sensor Networks, Michael N. Johnstone, Jeremy A. Jarvis

Australian Information Warfare and Security Conference

Wireless Sensor Networks are becoming popular as a simple means of collecting data by public utilities, motor vehicle manufacturers and other organisations. Unfortunately the devices on such networks are often insecure by default, which presents problems in terms of the integrity of the data provided across those networks. This paper explores a range of attacks that were successful on a network consisting of nodes using the ZigBee protocol stack and proposes defences that can be put in place to circumvent these attacks thus leading to more secure systems and increasing user confidence.

A Proposal For Utilising Active Jamming For The Defence Of Rfid Systems Against Attack, Christopher Bolan

Australian Information Security Management Conference

With a range of documented attacks against RFID systems a majority of the current literature is focused on the encryption of the communication. This paper addresses such attacks by proposing alternative means of protection through utilising some of the same methods that may be used to attack these systems. The proposed methods would allow for increased security within a range of RFID applications whilst still allowing for normal operations compliant with the relevant standards.

User Perceptions Of End User License Agreements In The Smartphone Environment, Hamish Cotton, Christopher Bolan

Australian Information Security Management Conference

With the increasing usage of smartphones as a computing platform has come alongside the movement of End User License Agreements to such platforms. The smartphone platform brings new issues to these agreements especially with the advent of app stores, which allow access to a large consumer base to small or unknown developers. This survey conducted in Perth, Western Australia looked at user perceptions of EULAs on smartphone devices. The results show that a majority of users do not read such agreements citing issues of readability and length. Even amongst those that do read the agreements there is a majority feeling …

A Longitudinal Study Of Wi-Fi Access Point Security Inthe Perth Central Business District, Emil Jacobson, Andrew Woodward

Australian Information Security Management Conference

This study collected data in 2008 and 2011 in relation to the level of apparent security of wireless network access points in the Perth CBD. It also compared this data to a comparable study conducted in 2004. The aim was to determine whether businesses were using an appropriate level of encryption to protect their wireless networks. A pre-determined route was followed which traced the Perth CBD and the open source wireless network auditing tool Kismet was used to survey the wireless networks. In 2008, approximately 1300 access points were discovered in the Perth CBD, this number climbing to approximately 3400 …

Modelling Misuse Cases As A Means Of Capturing Security Requirements, Michael N. Johnstone

Australian Information Security Management Conference

Use cases as part of requirements engineering are often seen as an essential part of systems development in many methodologies. Given that modern, security-oriented software development methods such as SDL , SQUARE and CLASP place security at the forefront of product initiation, design and implementation, the focus of requirements elicitation must now move to capturing security requirements so as not to replicate past errors. Misuse cases can be an effective tool to model security requirements. This paper uses a case study to investigate the generation of successful misuse cases by employing the STRIDE framework as used in the SDL.

Australian Primary Care Health Check: Who Is Accountable For Information Security?, Rachel J. Mahncke, Patricia A H Williams

Australian Information Security Management Conference

Primary healthcare in Australia is vulnerable to a multitude of information security threats and insecure practices. This situation is increasingly important in the developing e-health environment. Information security is everyone’s responsibility and it is extensively documented in international standards and best practice frameworks, that this responsibility should be part of formal job descriptions. This necessitates incorporation of security at a functional level for all staff. These responsibilities are integral to demonstrable accountability, together with an authority to take action. Indeed, whilst senior management will ultimately be held accountable, staff need to be aware of the potential issues, given the responsibility …

An Exploratory Study Of Erm Perception In Oman And Proposing A Maturity Model For Risk Optimization, Arun N. Shivashankarappa, D Ramalingam, Leonid Smalov, N Anbazhagan

Australian Information Security Management Conference

Enterprise Risk management is a process vital to enterprise governance which has gained tremendous momentum in modern business due to the dynamic nature of threats, vulnerability and stringent regulatory requirements. The business owners have realized that, risk creates opportunity which in turn creates value. Identifying and mitigating risk proactively across the enterprise is the purview of Enterprise Risk Management (ERM).However, key errors in the ERM process such as misinterpretation of statistical data, overlooking change management, inadequate attention to supply chain interdependencies, excessive trust of insiders and business partners, ambiguous grouping of risks and poor documentation has contributed significantly to the …

Efficient And Expressive Fully Secure Attribute-Based Signature In The Standard Model, Piyi Yang, Tanveer A. Zia, Zhenfu Cao, Xiaolei Dong

Australian Information Security Management Conference

Designing a fully secure (adaptive-predicate unforgeable and perfectly private) attribute-based signature (ABS), which allows a signer to choose a set of attributes in stead of a single string representing the signer‘s identity, under standard cryptographic assumption in the standard model is a challenging problem. Existing schemes are either too complicated or only proved in the generic group model. In this paper, we present an efficient fully secure ABS scheme in the standard model based on q-parallel BDHE assumption which is more practical than the generic group model used in the previous scheme. To the best of our knowledge, our scheme …

Estimating Pulse Wave Velocity Using Mobile Phone Sensors, Rohan Anchan

Theses : Honours

Pulse wave velocity has been recognised as an important physiological phenomenon in the human body, and its measurement can aid in the diagnosis and treatment of chronic diseases. It is the gold standard for arterial stiffness measurements, and it also shares a positive relationship with blood pressure and heart rate. There exist several methods and devices via which it can be measured. However, commercially available devices are more geared towards working health professionals and hospital settings, requiring a significant monetary investment and specialised training to operate correctly. Furthermore, most of these devices are not portable and thus generally not feasible …

Risk-Based Intervention Profiling In Complex Environments (Impacted By Time-Restricted Conditions), Joseph D. Ducie

Theses : Honours

Security in the aviation environment is an evolving concept. Security risk profiling is an issue of significant importance in the aviation spectrum. This study examined the profiling undertaken on Australia’s bio-security border, with specific attention given to the Australian Quarantine Inspection Service (AQIS) and the officers that use risk-based profiling within the complex environment found on the border—and how effectiveness is impacted by time. Aviation security is a real and current issue for Australia and the international community as a whole. Given recent outbreaks, and the relative ease of international air travel, of such pests and diseases (SARS, Swine Flu, …

A Parallel Graph Sampling Algorithm For Analyzing Gene Correlation Networks, Kathryn Dempsey Cooper, Kanimathi Duraisamy, Hesham Ali, Sanjukta Bhowmick

Interdisciplinary Informatics Faculty Publications

Effcient analysis of complex networks is often a challenging task due to its large size and the noise inherent in the system. One popular method of overcoming this problem is through graph sampling, that is extracting a representative subgraph from the larger network. The accuracy of the sample is validated by comparing the combinatorial properties of the subgraph and the original network. However, there has been little study in comparing networks based on the applications that they represent. Furthermore, sampling methods are generally applied agnostically, without mapping to the requirements of the underlying analysis. In this paper,we introduce a parallel …

A Proof That P≠Np, Pascal Hitzler

Computer Science and Engineering Faculty Publications

We demonstrate the separation of the complexity class NP from its subclass P.

Analysis And Visualization Of Vascular Structures, Thomas Wischgoll

Computer Science and Engineering Faculty Publications

No abstract provided.

A Low-Budget Tagger For Old Czech, Jirka Hana, Anna Feldman, Katsiaryna Aharodnik

Department of Computer Science Faculty Scholarship and Creative Works

The paper describes a tagger for Old Czech (1200-1500 AD), a fusional language with rich morphology. The practical restrictions (no native speakers, limited corpora and lexicons, limited funding) make Old Czech an ideal candidate for a resource-light crosslingual method that we have been developing (e.g. Hana et al., 2004; Feldman and Hana, 2010). We use a traditional supervised tagger. However, instead of spending years of effort to create a large annotated corpus of Old Czech, we approximate it by a corpus of Modern Czech. We perform a series of simple transformations to make a modern text look more like a …

Optimization Of Proximity Judgment, Brian Day

USF Tampa Graduate Theses and Dissertations

As humans, we have evolved to see in three dimensions. Our ancestors developed two eyes that only look forward, which allows the visual area that can perceive depth to be most of the field of view. A variety of sensors have been developed which can determine depth in the environment. They range from producing individual points of depth to the depth of everything in the environment. These sensors have become cheap and can now reliably produce accurate depth. Research is needed to determine how to present the proximity information to the people using the sensors. Touch, sound, and vision have …

In-Degree Dynamics Of Large-Scale P2p Systems, Zhongmei Yao, Daren B. H. Cline, Dmitri Loguinov

Computer Science Faculty Publications

This paper builds a complete modeling framework for understanding user churn and in-degree dynamics in unstructured P2P systems in which each user can be viewed as a stationary alternating renewal process. While the classical Poisson result on the superposition of n stationary renewal processes for n→∞ requires that each point process become sparser as n increases, it is often difficult to rigorously show this condition in practice. In this paper, we first prove that despite user heterogeneity and non-Poisson arrival dynamics, a superposition of edge-arrival processes to a live user under uniform selection converges to a Poisson process when …

Tracking And Recognizing Multiple Faces Using Kalman Filter And Modularpca, Jacob Foytik, Praveen Sankaran, Vijayan Asari

Computer Science Faculty Publications

Real-time tracking and recognizing multiple faces in complex environments has the ability to provide efficient security automation to large areas. Previous research has shown that Kalman filter techniques paired with the traditional face detection methods can be used to track one or more faces in a viewing region, but prove unreliable under variant conditions due to the inability to reliably distinguish between multiple trackers. A real-time face tracking and recognition system is presented that is capable of processing multiple faces simultaneously. The proposed system utilizes the Kalman filter for tracking and uses a low-level recognition system to properly distinguish between …

An Experience Report Of The Solo Iterative Process, Christopher Dorman

Wayne State University Theses

The field of software engineering is over 50 years old; originally, mathematicians and engineers thought software development was more of an art form than a defined process. These first software engineers managed to produce a variety of complex, working software; however, many software engineers today use agile processes. This thesis is an experience report in an agile process called the Solo Iterative Process.

In this thesis, previous research is reviewed in previous solo processes, team processes, individual phases of software evolution and software evolution tools. Then the Solo Iterative Process is defined. To begin the experience report a subject software, …