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A comparison of non-linear Lagrange and penalty functions for problems with a constraint

A global optimisation approach to classification in medical diagnosis and prognosis

  • Authors: Bagirov, Adil , Rubinov, Alex , Yearwood, John , Stranieri, Andrew
  • Date: 2001
  • Type: Text , Conference paper
  • Relation: Paper presented at 34th Hawaii International Conference on System Sciences, HICSS-34, Maui, Hawaii, USA : 3rd-6th January 2001
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  • Description: In this paper global optimisation-based techniques are studied in order to increase the accuracy of medical diagnosis and prognosis with FNA image data from the Wisconsin Diagnostic and Prognostic Breast Cancer databases. First we discuss the problem of determining the most informative features for the classification of cancerous cases in the databases under consideration. Then we apply a technique based on convex and global optimisation to breast cancer diagnosis. It allows the classification of benign cases and malignant ones and the subsequent diagnosis of patients with very high accuracy. The third application of this technique is a method that calculates centres of clusters to predict when breast cancer is likely to recur in patients for which cancer has been removed. The technique achieves higher accuracy with these databases than reported elsewhere in the literature.
  • Description: 2003003950

An argumentation-based multi-agent system for e-tourism dialogue

An investigation of long term effects of leachate on landfill clay liners

Building partnerships through discovery - collaborative online teaching and learning

High grade Au-Sb vein-type mineralisation at Fosterville

Implementing evidence-based health care : A new model for rural areas

Nonsmooth optimisation approach to data classification

Simulation training for rural health practitioners : A transformative approach

System development a la MODDE

  • Authors: Meikle, Tunde , Yearwood, John
  • Date: 2001
  • Type: Text , Conference paper
  • Relation: Paper presented at 8th International Conference on Artificial Intelligence and Law - ICAIL '01, St. Louis, Missouri, USA : 21st-25th May 2001 p. 99-103
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  • Description: This paper describes the MODDE (Model of Decision support system Design and Evaluation) framework in some detail. The work is in progress and is being currently applied to the EMBRACE project being developed for the Refugee Review Tribunal (RRT) of Australia. Refugee law is the general legal area we are working in, while the specific domain under investigation is that of the decision makers at the RRT. EMBRACE is a decision support system being designed to assist the RRT in maintaining consistency of decisions, and preserve discretion of decision makers as well as making it easier to cope with high volumes of work in decreasing time frames. The use of the MODDE framework is intended to facilitate systematic attention to important features of decision making in our specific legal domain and to provide a sound basis upon which to evaluate a part of the system intrinsic to user acceptance. Copyright 2001 ACM.
  • Description: 2003003947

Tools for placing legal decision support systems on the world wide web

University student views about Government expectations of young people in receipt of Youth Allowance while engaged in job search

  • Authors: Blaskett, Beverley
  • Date: 2001
  • Type: Text , Conference paper
  • Relation: , Lismore : 25th September 2001
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  • Description: This paper reports some preliminary results of a small pilot survey of University of Ballarat students' knowledge of Youth Allowance rates and eligibility criteria and of their attitudes towards the appropriateness of some of the obligations currently placed on young people in receipt of Youth Allowance. Thus it was asked, do students, who may themselves be experiencing poverty, agree with the current range of government imposed obligations on young job seekers?
  • Description: 2003002900

Enhancing university students’ spiritual well-being

Quality of life in the workplace : Spirituality, meaning and purpose

  • Authors: Fisher, John , Sellers, Eileen
  • Date: 2000
  • Type: Text , Conference paper
  • Relation: Paper presented at Proceedings of the 3rd Annual Conference on Spirituality, Leadership and Management, Mt Helen : Victoria 1st - 4th December 2000
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  • Description: This paper reports on research which aimed to investigate relationships between meaning and purpose in life and workplace expectations. It provides an overview of the methodology and outcomes of a survey conducted at a regional university. Survey methods included the distribution of two valid and reliable instruments to all employees of that university with data analysed using SPSS procedures. Analysis of the Spiritual Health and Life-Orientation Measure (SHALOM), developed by the principal researcher, and a purpose-designed questionnaire pertaining to meaning and purpose in the workplace, provided interesting findings. Overall, participants classified as administrators, professionals, service workers or labourers reported that they feel good about themselves and their relationships with others and the environment. The relationship with a god-type figure was of lesser importance for the spiritual well-being of the majority of participants. The participants do not expect the workplace to provide a major role in their spiritual well-being. They also reported significantly high levels of feelings of turbulence at work, and trends toward high anxiety and discomfort with autocratic managerial practices characterised by a focus on profits over people. The female staff described the workplace as more friendly, warm and caring than the males. The females also reported greater work satisfaction and were less depressed in doing their job than the males. Interpretation of these results indicates that a somewhat anxious and turbulent work place environment prevails. The personal impact of this unrest appears to be mediated by the support of families and friends of employees. The notion that workplace feelings which are negative (eg., anxiety) emanate from administrative practices, while those which are positive are a function of collegial behaviours, merits further exploration.

Rural social welfare : preparing students to work effectively in rural communities : an Australian experience

  • Authors: Green, Rosemary
  • Date: 2000
  • Type: Text , Conference paper
  • Relation: Rural Communities & Identities in the Global Millennium, International Conference, May 1-5, 2000
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  • Description: The complexity of rural practice in rural and remote communities means that higher order skills are required by rural social workers. In 1991, the University of Ballarat in Victoria (Australia) began teaching a course to prepare students for work in rural social welfare. The course was developed partly to meet industry needs, as local agencies were unable to attract qualified staff. While generic skills, such as counseling and group work, are taught, they are taught with emphasis on particular issues likely to occur in rural settings. Contextual issues include the role of the practitioner as a professional and a community member, confidentiality and privacy, and working within and between complex social networks. Existing courses of social work and welfare address rural practice in a peripheral fashion, whereas rural practice is thoroughly integrated into all elements of this course: course philosophy, curriculum design, teaching strategies, and assessment. The course's philosophical approach emphasizes community development principles of engagement and empowerment within communities. A brief framework of the course and evaluations completed by staff and students are provided. (Contains 15 references.) (TD)
  • Description: E1

Seeing the wood from the trees

Developing a spiritual health and life-orientation measure for secondary school students

  • Authors: Fisher, John
  • Date: 1999
  • Type: Text , Conference paper
  • Relation: Paper presented at Research with a regional/rural focus : proceedings of the University of Ballarat inaugural annual conference, Mt. Helen: Victoria 15th October, 1999 p. 57-63
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  • Description: The problem posed in this project was the development of an instrument to give a balanced assessment of young people’s spiritual health. Spiritual health is a dynamic state of being, which can be reflected in how well people relate in up to four domains of human existence, namely with themselves; with others; with the environment; and/or with a Transcendent Other. A convenience sample of 850 secondary students in State, Catholic, Christian Community and other independent schools in Ballarat and western suburbs of Melbourne were surveyed during 1999 to determine how important they considered each of the four sets of relationships to be for an ideal state of spiritual health (called Life-Orientation). They also expressed how each area reflected their personal experience most of the time (called Spiritual Health). Extensive factor analysis enabled the original 60-item instrument to be reduced to a reliable, compact 25-item Spiritual Health And Life-Orientation Measure (SHALOM for short). Analysis of variance and t-tests revealed significant variations between students’ views when compared by school type, gender, and year level. SHALOM has advantages over previous instruments in that it is balanced across the four domains of spiritual well-being, is more sensitive, and it compares people’s stated ideal position, with their lived experience, not others’, in determining the quality of relationships which constitute their spiritual well-being.

Be careful who you trust: Issues with the public key infrastructure

  • Authors: Black, Paul , Layton, Robert
  • Type: Text , Conference paper
  • Relation: 5th Cybercrime and Trustworthy Computing Conference, CTC 2014, Auckland, 24-25th November, 2014 published in Cybercrime and Trustworthy Computing Conference (CTC) p. 12-21
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  • Description: The modern digital internet economy and billions of dollars of trade are made possible by the internet security which is provided by operating system and web browser developers. This paper provides a survey of how this security is implemented through the use of digital certificates and the Public Key Infrastructure. Documented cases of the abuse of these digital certificates are given. It is shown that these problems arise from a combination of commercial pressures and a failure of the designers of internet security to consider the fundamental security principal of least privilege. Measures which are used to mitigate these problems are noted and new PKI architectural components which are designed to correct existing problems are examined.

Learning with technology: Theoretical foundations underpinning simulations in higher education

  • Authors: Lyons, Judith
  • Type: Text , Conference paper
  • Relation: Annual conference of the Australian Society for Computers in Tertiary Education
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  • Description: Embracing learning for the future through learning technologies requires a clearer understanding of the pedagogies that inform the simulated teaching and learning strategies used to facilitate student learning. Higher Education e-learning literature often groups educational games with simulation. However, educational simulation attributes are different from games or simulated games with very different aims and objectives within the learning context, which have implications for technology-based learning designs. In order to optimize the use of technologybased simulation this paper presents the theoretical foundations of educational simulation in a disciplinary context. Understanding the simulation pedagogy will assist academics to create technology-based simulated learning environments that highlight the inherent simulation attributes to enable and facilitate learning.

MPDF: Movement predicted data forwarding protocol for Underwater Acoustic Sensor Networks

  • Authors: Nowsheen, Nusrat , Karmakar, Gour , Kamruzzaman, Joarder
  • Type: Text , Conference paper
  • Relation: 20th Asia-Pacific Conference on Communication, APCC 2014 p. 100-105
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  • Description: Due to the unique characteristics of acoustic communication channel, reliable data transfer in underwater is difficult in applications such as pollution monitoring, oceano-graphic data collection, surveillance, etc. To handle this issue, an Opportunistic Message Forwarding Protocol (OMFP) [1], which selects next hop forwarders based on link reliability and data transfer reachability, was proposed for Underwater Acoustic Sensor Networks (UASNs). The protocol shows improved performance over some existing popular and reputed underwater data forwarding approaches. However, OMFP has not considered node movement which is a natural phenomenon underwater. Besides high error probability and dynamicity of underwater acoustic channel, node movement also makes data forwarding process difficult. In addition to the link reliability and reachability, incorporation of neighbors' coverage probability in terms of their movement pattern in the next hop selection will further increase the reliability of forwarder selection process and decrease the chances of packet loss. To address this issue, this paper presents a new approach, namely, Movement Predicted Data Forwarding (MPDF) protocol. In MPDF, every node predicts its future movement pattern due to various contributory factors and estimates node's location, coverage probability without using any 'active' localization technique. The simulation results show that the proposed technique improves data delivery ratio, routing overhead with comparable energy consumption.