Description:
We reduce the supervised classification to solving a nonsmooth optimization problem. The proposed method allows one to solve classification problems for databases with arbitrary number of classes. Numerical experiments have been carried out with databases of small and medium size. We present their results and provide comparison of these results with ones obtained by other algorithms of classification based on the optimization techniques. Results of numerical experiments show effectiveness of the proposed algorithms.
Description:
We reduce the supervised classification to solving a nonsmooth optimization problem. The proposed method allows one to solve classification problems for databases with arbitrary number of classes. Numerical experiments have been carried out with databases of small and medium size. We present their results and provide comparison of these results with ones obtained by other algorithms of classification based on the optimization techniques. Results of numerical experiments show effectiveness of the proposed algorithms.
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:
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:
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.
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.
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:
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:
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.
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.
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.
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.
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.
Description:
Online Farm Trials (OFT) (www.farmtrials.com.au) is a free web-based resource and trial discovery system that contains more than 7,100 trials from 76 different organisations from across Australia. Since its inception in 2013, OFT has developed via a collaborative approach with grower groups, research organisations, agricultural experts and grains industry organisations. This ensures the outcomes are highly relevant, practical and beneficial for growers. Users can view, analyse and export grains research data as well as compare trials based upon historical, geographic and crop-specific search filters. Current developments include seasonally relevant collections of trials to highlight priority topics and aid on-farm decision making. To meet the future needs of industry stakeholders, system developments are planned to include expanded trial research information access, foster innovation through publishing and promoting active trials and enhance trial data standards and quality. **Please note that there are multiple Federation University authors for this article, including the name of the first 5 and also including “Rob Milne, Julie Parker, Helen Thompson, Judi Walters and Ben Wills" is provided in this record**
Description:
Online Farm Trials (OFT) (www.farmtrials.com.au) is a free web-based resource and trial discovery system that contains more than 7,100 trials from 76 different organisations from across Australia. Since its inception in 2013, OFT has developed via a collaborative approach with grower groups, research organisations, agricultural experts and grains industry organisations. This ensures the outcomes are highly relevant, practical and beneficial for growers. Users can view, analyse and export grains research data as well as compare trials based upon historical, geographic and crop-specific search filters. Current developments include seasonally relevant collections of trials to highlight priority topics and aid on-farm decision making. To meet the future needs of industry stakeholders, system developments are planned to include expanded trial research information access, foster innovation through publishing and promoting active trials and enhance trial data standards and quality. **Please note that there are multiple Federation University authors for this article, including the name of the first 5 and also including “Rob Milne, Julie Parker, Helen Thompson, Judi Walters and Ben Wills" is provided in this record**
Description:
Mining of narrow vein mineralisation, invariably depending on the mining method selected, involves the extraction of both ore and waste rock. The level to which mining of waste rock can be minimised depends on numerous factors, but patticularly the thickness and dip of the deposit. Resue mining is a method of mining that allows spl it face firing within stopes to allow waste and ore to be mined separately, allowing dilution to be minimised. This paper examines the technique of resue firing and its applicabil ity to the mi ning of narrow vein deposits. Panicular emphasis is placed on the conditions in which resue mi ning presents a suitable option for mining of narrow veins.