Hierarchical representation for spatial knowledge

One of the fundamental issues in building autonomous agents is to be able to sense, represent and react to the world. Some of the earlier work [Mor83, Elf90, AyF89] has aimed towards a reconstructionist approach, where a number of sensors are used to obtain input that is used to construct a model of the world that mirrors the real world. Sensing and sensor fusion was thus an important aspect of such work. Such approaches have had limited success, and some of the main problems were the issues of uncertainty arising from sensor error and errors that accumulated in metric, quantitative models. Recent research has therefore looked at different ways of examining the problems. Instead of attempting to get the most accurate and correct model of the world, these approaches look at qualitative models to represent the world, which maintain relative and significant aspects of the environment rather than all aspects of the world. The relevant aspects of the world that are retained are determined by the task at hand which in turn determines how to sense. That is, task directed or purposive sensing is used to build a qualitative model of the world, which though inaccurate and incomplete is sufficient to solve the problem at hand. This paper examines the issues of building up a hierarchical knowledge representation of the environment with limited sensor input that can be actively acquired by an agent capable of interacting with the environment. Different tasks require different aspects of the environment to be abstracted out. For example, low level tasks such as navigation require aspects of the environment that are related to layout and obstacle placement. For the agent to be able to reposition itself in an environment, significant features of spatial situations and their relative placement need to be kept. For the agent to reason about objects in space, for example to determine the position of one object relative to another, the representation needs to retain information on relative locations of start and finish of the objects, that is endpoints of objects on a grid. For the agent to be able to do high level planning, the agent may need only the relative position of the starting point and destination, and not the low level details of endpoints, visual clues and so on. This indicates that a hierarchical approach would be suitable, such that each level in the hierarchy is at a different level of abstraction, and thus suitable for a different task. At the lowest level, the representation contains low level details of agent's motion and visual clues to allow the agent to navigate and reposition itself. At the next level of abstraction the aspects of the representation allow the agent to perform spatial reasoning, and finally the highest level of abstraction in the representation can be used by the agent for high level planning.

Managing work health and safety : recent developments and future directions

Effective management of occupational health and safety ( OHS) continues to pose a challenge to many organisations. While significant advancement has occurred in knowledge about traditional workplace risks, organisational and labour market changes have created new risks, psychosocial risks are more prevalent, and the trend towards the adoption of OHS management systems has produced only mixed results. These issues are the focus of this review of recent developments in workplace health and safety. We argue there is a need for organisations to refocus systematically on a collaborative approach to identifying and controlling workplace risks, and on improving the integration of OHS into broader systems and every day management to better meet existing and future OHS challenges.

The capacity of criminal sanctions to shape the behaviour of offenders : specific deterrence doesn’t work, rehabilitation might and the implications for sentencing

There is a considerable gap between the law and knowledge regarding the efficacy of state-imposed sanctions to achieve several key sentencing objectives. Two sentencing objectives which often carry considerable weight in the sentencing calculus are rehabilitation and specific deterrence, despite the fact that neither has been proven to be attainable. This article examines the empirical data on whether specific deterrence and rehabilitation are attainable, and consequently whether they should be retained or abolished as sentencing objectives.

Depression as a predictor of work resumption following myocardial infarction (MI): a review of recent research evidence

Background Depression often coexists with myocardial infarction (MI) and has been found to impede recovery through reduced functioning in key areas of life such as work. In an era of improved survival rates and extended working lives, we review whether depression remains a predictor of poorer work outcomes following MI by systematically reviewing literature from the past 15 years.

Methods Articles were identified using medical, health, occupational and social science databases, including PubMed, OVID, Medline, Proquest, CINAHL plus, CCOHS, SCOPUS, Web of Knowledge, and the following pre-determined criteria were applied: (i) collection of depression measures (as distinct from 'psychological distress') and work status at baseline, (ii) examination and statistical analysis of predictors of work outcomes, (iii) inclusion of cohorts with patients exhibiting symptoms consistent with Acute Coronary Syndrome (ACS), (iv) follow-up of work-specific and depression specific outcomes at minimum 6 months, (v) published in English over the past 15 years. Results from included articles were then evaluated for quality and analysed by comparing effect size.

Results Of the 12 articles meeting criteria, depression significantly predicted reduced likelihood of return to work (RTW) in the majority of studies (n = 7). Further, there was a trend suggesting that increased depression severity was associated with poorer RTW outcomes 6 to 12 months after a cardiac event. Other common significant predictors of RTW were age and patient perceptions of their illness and work performance.

Conclusion Depression is a predictor of work resumption post-MI. As work is a major component of Quality of Life (QOL), this finding has clinical, social, public health and economic implications in the modern era. Targeted depression interventions could facilitate RTW post-MI.

Misconceptions about density of decimals : insights from Indonesian pre-service teachers’ work

Extensive studies have documented various difficulties with, and misconceptions about, decimal numeration across different levels of education. This paper reports on pre-service teachers’ misconceptions about the density of decimals. Written test data from 140 Indonesian pre-service teachers, observation of group and classroom discussions provided evidence of pre-service teachers’ difficulties in grasping the density notion of decimals. This research was situated in a teacher education university in Yogyakarta, Indonesia. Incorrect analogies resulting from over generalization of knowledge about whole numbers and fractions were identified. Teaching ideas to resolve these difficulties and challenges in resolving pre-service teachers’ misconceptions are discussed. Evidence from this research indicates that it is possible to remove misconceptions about density of decimals.

Georg Simmel, the stranger and the sociology of knowledge

The Simmelian stranger has been extensively studied and critiqued. This paper suggests that although this body of literature has contributed to a conceptual refinement of the category, its analysis confines itself to Simmel’s seminal essay on the stranger. A broader and deeper analysis of Simmel’s stranger is possible when we contextualise it within Simmel’s broader intellectual project and link it to his conception of historical knowledge, 10 his reflections on the third element, the cosmopolitan aesthetic sensibility and the genius. It is suggested that the affinities between the stranger and other ideas within his work allow us to ponder the contribution that Simmel can make to the debate on standpoint epistemologies.

Re-positioning Australia's international education in global knowledge economies : implications of shifts in skilled migration policies for universities

In recent times, many key host nations have made it easier for foreign graduates to migrate after graduation. These students are often considered ideal migrants, possessing local qualifications along with a degree of acculturation, language skills and, in many cases, relevant local work experience. For the student, the opportunity to obtain international work experience adds to the appeal of the overseas study experience and enhances the graduate skills necessary to compete in the global labour market. This paper examines recent changes to migration policy in Australia affecting the post-study work entitlements of international students studying at Australian universities and explores the underlying rationale and consequences of the recent changes in policy direction. An examination of migration policies in the United States, United Kingdom, New Zealand and Canada indicates that recent changes to skilled migration policy in Australia, along with bleak economic conditions in a number of key host countries, has opened up opportunities for Australia to re-position itself favourably.

Using professional atandards : assessing work integrated learning in initial teacher education

All Australian teacher education programs must include practical experience--the practicum. It is a critical part of learning to become a teacher.  One of the major challenges in initial teacher education is to provide good quality assessment of the practicum.  Assessing the practicum is filled with tension for both the individual supervisor as well as the pre-service teacher. In 2011 the Australian National Professional Standards for Teachers were established.  On completion of teacher education programs, graduate teachers will have gained the knowledge and practice to meet the seven national standards.  For teacher preparation programs, the successful implementation of the standards will rely on the opportunities for preservice teachers to gather evidence of achieving the standards. This project focussed specifically on evidence of achievements of these standards through assessment practices during practicum.
The overall aim of this project was to enhance the academic and school-based teacher educators' and preservice teachers' capacities and understandings of assessing the practicum.  To achieve this aim, four outcomes were developed to provide professional leaning for improving the assessment practices of the practicum: a website resource, a collaborative partnership process, a professional learning model (PLM) and a developmental 'inventory' of evidence of achievement of the first five national standards.  The website resource provides materials and activities for staff involved in the design of professional experience in initial teacher education programs, to work with partner schools and preservice teachers to facilitate high quality supervision and assessment in practicum sites.  The collaborateive partnership process used for achieving these soutcomes -- communities of reflective practitioners--is integral to the professional learning focus of the project.  It guides the use of the resource in future teacher education sites of practice.  The professional learning model and website materials emphasise the critical role that evidence-informed judgements play at school sites in learning and assessment of future teachers.

Conceptualizing teamwork and group-work in architecture and related design disciplines

This paper reports on the early findings of an Australian Learning Teaching Council (ALTC/OLT) funded project – “Enhancing and Assessing Group and Team Learning in Architecture and Related Design Contexts.” This is a two-year project investigating good practice in Australian higher education for the teaching of teamwork in the design disciplines, with a focus on architecture. Drawing upon a review of the literature and discussions with teachers and practitioners, the paper considers how teamwork is conceived in the context of the design disciplines. The paper explores notions of team and group design activities in the literature, identifying the key elements and characteristics of effective teams and groups. While a great deal of research exists on effective teamwork in organizational, management and general education literature, this research found a clear gap in knowledge relating to teaching teamwork in architecture and related design contexts. Suggestions are made about the ways in which theories on effective teamwork in organisations might elucidate teaching and assessment of effectively functioning student design teams. The literature review prompted five key questions, outlined here, around the conceptualisation of teamwork in design education that were subsequently discussed with educators and practitioners, thus allowing the identification of issues, problems and solutions common to all fields of design.

The Role of TAFE as an Equity Pathway to Social Inclusion, Employment, and to University : a submission from The Deakin University Social Work/Gordon TAFE Community Services Work, Geelong Based Project Team

Executive Summary

The Deakin University Social Work/Gordon TAFE Community Services Work Geelong Based Project Team (the Project Team) was assisted by Higher Education Partnership and Participation funding made available through Deakin University Participation and Partnerships Program (DUPPP) to carry out research and project work in 2012/13.

In the following submission to the House of Representatives Inquiry into the role of Technical and Further Education (TAFE) system and its operation, this Project Team seeks to establish a case for:

1. Funding to enable TAFE to continue as:

a) an equity pathway to social inclusion, employment, and to university, particularly in regional areas.
b) an integral complement to the University education sector to deliver on the ambitious objectives of the Federal Government’s widening participation agenda, as a mechanism to deliver the skills, knowledge and workforce needed now, and in the future, in the Australian economy.
2. Increased resources for separate and joint sector development
a) Publicly funded TAFEs need funding to be restored and increased to enable them to maintain the high quality education they provide and to maintain their successful work in supporting communities, regions and disadvantaged individuals to gain skills, training and employment.
b) Universities need increased funding to increase staffing levels and therefore free up teaching staff to spend the necessary time to develop relationships with and provide support to students. This is important for the achieving the goals of the widening participation agenda of increasing access without increasing attrition at the same time.
c) TAFEs and Universities need funding to do the work required to further develop and formalise diploma-degree pathways so that disadvantaged individuals can exit into employment at the diploma level or be supported in an efficient and seamless way to undertake further study.
3. Active use of localised and nuanced partnership approaches by education institutions. This includes:
• Cross teaching by TAFEs and Universities in courses that can be articulated, such as professional practice diplomas and degrees
• Programs negotiated and designed according to the needs of students in each location. TAFEs and Universities need resources in order to do this work
• Focus on regional centres where there is a particular opportunity for government to make an impact on TAFE pathways to employment and/or further education
• Workforce development in regional areas due to new industries is a particular area of need
4. Recognise and capitalise on the complementary and symbiotic nature of each sector’s skills, strengths and capacities.
The submission responds to the second, third and fifth points of the Terms of Reference of the Inquiry and is based on the research work carried out by the Project Team in 2012/13.

We provide evidence of Gordon TAFE in Geelong working as an equity mechanism in the particular case of the welfare/ community services diploma to social work degree pathway. The project team considers that there is a strong case for additional resourcing of TAFE to enable it to continue what it does well. TAFE is the key training and education sectorthe ‘education and social hub’that can successfully attract, retain, and graduate people who may not otherwise access education due to one or more combinations of:

1. having a low SES current or past background;
2. living in regional areas;
3. receiving interrupted primary and secondary education;
4. having disabilities;
5. being sole parents;
6. being from refugee backgrounds;
7. having English as an additional language/culture;
8. retrenchment from employment in dying industries;
9. short, medium and long term unemployment;
10. past and/or current caring roles;
11. marriage/relationship breakdowns;
12. domestic violence;
13. gender, class, age, race/ethnicity and dis/ability discriminations; and
14. socialised expectations and fears.

The recommendations in this submission are based on research findings about important similarities and differences between Gordon TAFE welfare and Deakin University social work students in Geelong, and their respective institutional organisations and contexts. The two institutions employ a repertoire of diverse administrative, teaching, learning and support approaches to meet different mission goals, requirements and needs.

Carving into country: the work of Badger Bates

Badger Bates (William Brian Bates) was born on the Darling River at Wilcannia in 1947. His grandmother, Granny Moysey, a revered Paakantyi woman who spoke several Aboriginal languages, raised him, teaching him stories and traditional songs. This was the beginning of Badger’s journey into a complex and sophisticated knowledge system. As a child Badger experienced the knowledge and practice imparted by his grandmother which informs his artwork today. Badger learnt carving from her and other Paakantyi elders, and by 1986 he was selling his carvings of wood and emu eggs to the Australian Museum in Sydney.

Global education: travel and new imaginaries for teachers' work

This book confirms that globalisation is reshaping educators’ work and lives towards a more global education. Understanding how teachers make meaning from and respond to travel revealed aspects of knowledge creation and identity formation. Set within contexts of globalisation, the study investigated global education through analysis of changing definitions and meanings by taking an historical stance. Teachers revealed that their study tour created new knowledge, teaching pedagogies and greater awareness of stereotypes both held and disclosed from students. The practices and thinking described by participants were consistent with calls for greater cosmopolitan teaching. A collection of ‘travel’ stories written by the author are included. The book sheds light on how teachers embed global imaginaries in their teaching. This in turn builds understanding around how globalisation is reshaping local contexts and individuals’ thinking and being. The findings challenge global education as a discrete framework and suggest teachers’ experiences as influential on education now in a global world.

Telling stories: my work as a literacy intervention teacher

This text is a “narrative inquiry” (Clandinin and Connelly, 2000) in which the author presents an account of her experiences as an English teacher working in an Australian public secondary school. The author explores the ways in which her beliefs as an English teacher conflicted with her role as a Literacy Co-ordinator/teacher and how — even though she may have consciously questioned and resisted performing certain ideological work, such as administering standardised tests and sorting students into remedial groups — there was still a sense in which government policies mediated her professional practice, transforming it into something with which she remained deeply at odds. The author's aim was not just to provide an empirical account of how students and teachers experienced these literacy initiatives, but to capture the dominant ideology that is shaping education at the current moment. This is done by examining the Victorian government school publication, Education Times, specifically to demonstrate how the rhetoric of this official publication shaped the author's professional practices and knowledge as an English teacher. Through this narrative the author interrogates taken-for-granted understandings about what counts as “knowledge” in an age of increasing accountability.

Doctoral work as boundary-riding and boundary-breaking

This chapter considers the tension between candidates being ‘disciplined in the discipline of the discipline’ and producing significant original knowledge to earn their doctorate. That is, learning about the disciplinary boundaries within which their doctorates are conducted, and learning how to ‘push’ those boundaries with sufficient originality in order to be ‘doctored’. For the purposes of this chapter, ‘doctoral work’ embraces all those forms of work and their workers that contribute to doctoral process. Supervisors (advisers) and candidates (students) are the obvious workers, but then there are those whose work it is to support doctoral work; in particular, administrators, counsellors, postgraduate students’ associations, and those ‘scholarly friends’ the librarians.

Leading WIL: A distributed leadership approach to enhance work integrated learning : final report 2014

Work Integrated Learning (WIL) provides rich, relevant learning through a partnership between universities and employers. Through a collaborative approach to building knowledge, the capability and capacity of experienced WIL leaders in the university and orkplace will be enhanced for improved student outcomes. Having established how and where WIL leadership is situated, the project will identify the critical challenges to WIL leadership capabilities and structures. Through institutionally-based Master Classes that model and employ a distributed learning approach, through national Communities of Practice and a WIL Leadership Summit, a framework and guidelines to support WIL leadership capacity building nationally will be developed, trialled and validated. The project will draw upon expertise and experiences of staff from five Australian universities, each with a demonstrated strong WIL commitment. The distributive leadership approach to WIL will be developed and tested within employer-based individual disciplines. The framework and guidelines will be sustained nationally through the key WIL professional association, the Australian Collaborative Education Network.