QuickTime multi-track theatricks

Digital media, corporate database applications and intranets provide efficient ways to create, store and deliver information and educational services. However some academics perceive new workload and other constraints eroding the potency of these technologies. Proposed corporate level information management systems for digital objects and their metadata are new complexities entering academicsÕ thoughts about using online multimedia.

Few staff understand digital multimedia concepts and fewer still, the systems designed to deal with IP management, copyright law compliance and the tracking of digital resource creation processes. Faltering staff enthusiasm warns of their need to experience working models and tangible benefits from these new directions. A project in Deakin's Faculty of Education provides a case study showing how QuickTime is helping academics understand, and increase their use of, multimedia in e-learning environments with an integrated library of digital resources with metadata.

We also report our experience of QuickTime in creating interactive learning objects using multi-tracks. We discuss our idea of theatricks as a performance drawcard - people will come! There is orchestration of multimedia and QuickTime conducts the events, its flexible functionalities providing a safer development environment for solving problems and grasping opportunities.

While difficult for some academics to comprehend, scripting automation and database connectivity through intelligent interfaces might facilitate QuickTime's use in building integrated learning environments with academics. These ideas are considered in relation to staff development, central to the case study project.

Reconceptualising outsourcing in the public sector : choices and outcomes

National Competition Policy’s introduction encouraged the use of outsourcing in the public sector, but variations in the extent and types of services outsourced were evident. Through reviewing the economic and political literature, this paper has uncovered six reasons for outsourcing that straddle the two paradigms. The desire to reduce costs and increase efficiency, focus on core competitive advantage, introduce workforce flexibility, manage industrial relations’ problems, satisfy decision-makers’ personal objectives and adhere to the neo-liberal government agenda are discussed. The paper puts forward a number of models which delve into the relationship between the theoretical factors which economic and political theorists have proposed as being important in making the decision to outsource and delineates between those factors which are perceived by decision-makers as important in their reasoning and those which are unperceived but impact on the outcomes. It concludes that is only by understanding the complex relationship between reasons, and perceived and unperceived factors, will outcomes be able to be predicted.

A multi-wavelet based technique for calculating dense 2D disparity maps from stereo

A vision based approach for calculating accurate 3D models of the objects is presented. Generally industrial visual inspection systems capable of accurate 3D depth estimation rely on extra hardware tools like laser scanners or light pattern projectors. These tools improve the accuracy of depth estimation but also make the vision system costly and cumbersome. In the proposed algorithm, depth and dimensional accuracy of the produced 3D depth model depends on the existing reference model instead of the information from extra hardware tools. The proposed algorithm is a simple and cost effective software based approach to achieve accurate 3D depth estimation with minimal hardware involvement. The matching process uses the well-known coarse to fine strategy, involving the calculation of matching points at the coarsest level with consequent refinement up to the finest level. Vector coefficients of the wavelet transform-modulus are used as matching features, where wavelet transform-modulus maxima defines the shift invariant high-level features with phase pointing to the normal of the feature surface. The technique addresses the estimation of optimal corresponding points and the corresponding 2D disparity maps leading to the creation of accurate depth perception model.

Discharge planning: from the acute sector for people over the age of 65

This paper reports the findings relating to discharge planning from a larger study (Hegney et al 2001) that aimed to investigate options to improve care co-ordination between the aged, community, acute and primary care sectors for the elderly residents of a large provincial town. The data, which were collected from a wide variety of aged care stakeholders in the region, are consistent with previous Australian studies. First, it appears that inappropriate discharge from acute hospitals occurs in Toowoomba because there is a perceived lack of information regarding the available community care options and a lack of suitable models to support people's care needs within their own homes. Second, inappropriate discharge practices from acute hospitals occur due to a lack of knowledge and communication on the part of health professionals employed in these settings with regard to the on- going health care needs of elderly people. Third, there is little discharge planning occurring that includes the general practitioner in post-discharge care. Finally, inappropriate discharge can also be attributed to the lack of sub-acute/step-down/rehabilitation options and long waiting lists for community home care services in the region.

Roles, responsibilities and futures of chief information officers (CIOs) in the public sector

This paper discusses in its entirety, the CIO (Chief Information Officer) position in the public sector. Governments are increasingly adopting Information Technology for internal processes and for the delivery of service to their citizens. It includes literature on CIO roles and responsibilities which is heavily based on the private sector, due to the recognition of the role in this sector over twenty years. The position is just evolving in the public sector, and due to the context in which the public sector operates there are some similarities as well as vast differences. An evaluation of existing CIO models and theories form the basis for research on CIO roles, responsibilities and future within the public sector.

Depth estimation using multi-wavelet analysis based stereo vision approach

The problem of dimensional defects in aluminum die- casting is widespread throughout the foundry industry and their detection is of paramount importance in maintaining product quality. Due to the unpredictable factory environment and metallic, with highly reflective, nature of aluminum die-castings, it is extremely hard to estimate true dimensionality of the die-casting, autonomously. In this work, we propose a novel robust 3D reconstruction algorithm capable of reconstructing dimensionally accurate 3D depth models of the aluminum die-castings. The developed system is very simple and cost effective as it consists of only a stereo cameras pair and a simple fluorescent light. The developed system is capable of estimating surface depths within the tolerance of 1.5 mm. Moreover, the system is invariant to illuminative variations and orientation of the objects in the input image space, which makes the developed system highly robust. Due to its hardware simplicity and robustness, it can be implemented in different factory environments without a significant change in the setup.

A computation trust model with trust network in multi-agent systems

Trust is a fundamental issue in multi-agent systems, especially when they are applied in e-commence. The computational models of trust play an important role in determining who and how to interact in open and dynamic environments. To this end, a computation trust model is proposed in which the confidence information based on direct prior interactions with the target agent and the reputation information from trust network are used. In this way, agents can autonomously deal with deception and identify trustworthy parties in multi-agent systems. The ontological property of trust is also considered in the model. A case study is provided to show the effectiveness of the proposed model.

Directors' remuneration and performance in the Australian banking sector

This paper explores the links between directors' pay and performance within the Australian banking sector using panel data for the 1993-2004 period. The links between CEOs' pay and performance is investigated also. Several earnings models are estimated and different estimation techniques are used. The results indicate that there is no link between directors' pay and firm performance with a one year lag. However, there is a more distant payperformance link, with directors' pay influenced by shareholders' returns with a three year lag. The other key determinants of directors' pay in the Australian banking sector are bank specific managerial policies, lags in the administration of pay, bank size and board composition. A clear and strong positive and direct association between CEO remuneration and performance is established.

Job stress in the law enforcement sector: comparing the linear, non-linear and interaction effects of working conditions

This study addresses a gap in much of the research involving stress among high-risk occupations by investigating the effects of linear, non-linear and interaction models in a law enforcement organization that has undertaken a series of efficiency-driven organizational reforms. The results of a survey involving 2085 police officers indicated that the demand-control-support model provided good utility in predicting an officer's satisfaction, commitment and well-being. In particular, social support and job control were closely associated with all three outcome variables. Although the demand × control/support interactions were not identified in the data, there was some support for the curvilinear effects of job demands. The results have implications for the organizational conditions that need to be addressed in contemporary policing environments where new public management strategies have had widespread affects on the social and organizational context in which policing takes place.

Australian public sector adoption of EDRMS : a preliminary survey

Governments around the world are placing increasing emphasis on effective corporate recordkeeping within both private and public sector organisations, with some governments mandating such approaches: for example, The State Government of South Australia has required all its agencies to have 'an adequate records management program' in place by the end of 2009 (State Records of South Australia 2007). These demands are often met through the implementation of centralised electronic records management solutions – frequently, Electronic Document and Records Management Systems (EDRMS) – but not all implementing organisations adopt an EDRMS solution in the most optimal way; and many such systems fail to meet organisational needs, or gain acceptance form all (or even most) users. This paper reports on a Web-based survey of Australian public sector EDRMS implementation at three levels (federal, state and local government) and forms the first component of a multi-part investigation of Australian public sector records management. This preliminary survey was designed to identify the EDRMS solutions adopted by government agencies, as well as any guidelines or frameworks used in designing and implementing those solutions.

Decentralized mobility models for data collection in wireless sensor networks

Controlled mobility in wireless sensor networks provides many benefits towards enhancing the network performance and prolonging its lifetime. Mobile elements, acting as mechanical data carriers, traverse the network collecting data using single-hop communication, instead of the more energy demanding multi-hop routing to the sink. Scaling up from single to multiple mobiles is based more on the mobility models and the coordination methodology rather than increasing the number of mobile elements in the network. This work addresses the problem of designing and coordinating decentralized mobile elements for scheduling data collection in wireless sensor networks, while preserving some performance measures, such as latency and amount of data collected. We propose two mobility models governing the behaviour of the mobile element, where the incoming data collection requests are scheduled to service according to bidding strategies to determine the winner element. Simulations are run to measure the performance of the proposed mobility models subject to the network size and the number of mobile elements.

Internationalisation process for construction design service SMES on multi national projects

The internationalisation process has four key factors including market selection, decision to enter, entry modes and factors affecting entry modes. Small and medium sizes enterprises (SMEs) in the architectural engineering construction design services sector have demonstrated an increasing involvement in international markets. Consequently, activities and processes involved in internationalisation of these SME types present important issues for understanding from entrepreneurial, managerial and research perspectives. A research gap exists, however, through emphasis in past research having been given to large firms, and in particular those within manufacturing. This investigation identified similarities and differences between two construction design service SMEs who have been exporting to various localities including Eastern Europe, Africa, Middle East, UK, Asia and South America for typically more than two decades. Similarities and differences were identified within eight major constructs including: purpose, firm type, market image and design philosophy, entry mode strategy, institutional arrangement, factors affecting mode of entry, marketing selection and firm strategy in relation to project selection. The primary reasons for firms in both cases working in international markets were associated with the firms' motivations related to growth and enhancement of financial viability. Both firms were categorized as client following. This paper discusses the various internationalization processes and explains the reasons intrinsic to each case study. The two firms have been highly successful in the internationalization processes on multi-national projects die to a reflexive capability philosophy which incorporates continuous analysis and alignment between firm and locality characteristic to transform traditional barriers into enablers of success.

Multi-scaling modelling in financial markets

In the recent years, a new wave of interest spurred the involvement of complexity in finance which might provide a guideline to understand the mechanism of financial markets, and researchers with different backgrounds have made increasing contributions introducing new techniques and methodologies. In this paper, Markov-switching multifractal models (MSM) are briefly reviewed and the multi-scaling properties of different financial data are analyzed by computing the scaling exponents by means of the generalized Hurst exponent H(q). In particular we have considered H(q) for price data, absolute returns and squared returns of different empirical financial time series. We have computed H(q) for the simulated data based on the MSM models with Binomial and Lognormal distributions of the volatility components. The results demonstrate the capacity of the multifractal (MF) models to capture the stylized facts in finance, and the ability of the generalized Hurst exponents approach to detect the scaling feature of financial time series.

Optimising discrete event simulation models using a reinforcement learning agent

A reinforcement learning agent has been developed to determine optimal operating policies in a multi-part serial line. The agent interacts with a discrete event simulation model of a stochastic production facility. This study identifies issues important to the simulation developer who wishes to optimise a complex simulation or develop a robust operating policy. Critical parameters pertinent to 'tuning' an agent quickly and enabling it to rapidly learn the system were investigated.

The ill effects of public sector corruption in the water and sanitation sector

In general, given a particular set of institutions, the greater a county's per capita income, the more extensive will be its pro vision of goods and services that require concerted public action. We contend that one of the most important aspects of institutions in this regard is public sector corruption. We test this contention by analyzing 85 countries observed in 1990, 1995, 2000, and 2004--the only years for which data on improved drinking water and adequate sanitation are available. The models point to statistically significant, negative relations between corruption and access to both improved drinking water and adequate sanitation.