http://nova.newcastle.edu.au/vital/access/services/Feed ${session.getAttribute("locale")} 5 An object oriented time model of a decision support system for intoxication diagnoses http://nova.newcastle.edu.au/vital/access/manager/Repository/uon:2776 This paper presents a method exploiting Object Oriented (O-O) model concepts to build a Knowledge Base System (KBS) in empirical domains such as the Human Sciences. The method relies on a particular model whose specific features are: a twin conceptual level (internal and external level); a multiple ascending inner inheritance based on object composition; evaluation and dynamical functions; and a zoom operator providing an adapted perception of the expert’s domain. Model, method, and automated tools yield the design of a KBS for the diagnostic aid of intoxications with antidepressive drugs. It relies on fuzzy functions and time modelling, and takes a case based reasoning approach. 2013-03-27T05:30:47.392Z ]]> Modelling temporal aspects of clinical objects http://nova.newcastle.edu.au/vital/access/manager/Repository/uon:2777 This paper describes some temporal constructs that can be used in modelling temporal relationships of objects involved in medical scenarios. The paper proposes that the temporal constructs are useful and can be applied to general Object-Orientated (O-O) models used in clinical applications. 2013-03-27T05:30:26.368Z ]]> Improving interest point object recognition http://nova.newcastle.edu.au/vital/access/manager/Repository/uon:6531 Research Doctorate - Doctor of Philosophy (PhD) 2011-12-07T21:50:12.205Z ]]> Gender differences in motor skill proficiency from childhood to adolescence: a longitudinal study http://nova.newcastle.edu.au/vital/access/manager/Repository/uon:9431 Students' proficiency in three object control and three locomotor skills were assessed in 2000 (M age = 10.06 years, SD = 0.63) in New South Wales, Australia and in 2006-07 (M age = 16.44 years, SD = 0.64). In 2006-07, 266 students, 138 girls (51. 9%) and 128 boys (48.1 %), had at least one skill reassessed. Boys were more object control proficient than girls. Childhood object control proficiency significantly predicted (p = .001) adolescent object control proficency (r² = .39), and, while gender was significant (p = .001), it did not affect the relationship between these variables (p = .53). Because childhood object control proficiency is predictive of subsequent object control proficiency, developing skills in childhood is important. 2011-11-21T01:40:02.065Z ]]> Industrial organization object-oriented project model of the facade supply chain cluster http://nova.newcastle.edu.au/vital/access/manager/Repository/uon:8648 This chapter presents a cluster of chains in relation to the building facade, which supports a model merging industrial organization economic theory and object-oriented modeling. The results are from the interviews with various project managers, firm executives, production, and procurement managers involved in the supply chains for commodities that are clustered around the facade specialist subcontractor on a major building project in Melbourne, Australia. Many of the suppliers are international in that they either directly work on projects in other countries or are within companies that are international. Researchers have tended to develop normative models to improve industry performance through supply chain integration. Such models are based upon the assumption of a homogenous industry, which is fragmented and composed of numerous small to medium-sized enterprises. Organizations, either governments or corporations, are seeking positive descriptive economic models which are fundamentally informational models to improve firm performance and/or industry performance. 2011-08-17T02:40:18.232Z ]]> Modelling causality in medical scenarios http://nova.newcastle.edu.au/vital/access/manager/Repository/uon:6343 This paper outlines formalisms for the representation of state and causality as mechanisms in an Object-Oriented approach to modelling medical knowledge. Some of the temporal denotations used by the MDS, an Object-Oriented based medical knowledge acquisition methodology and modelling architecture, to model causality are described. 2010-05-25T01:20:05.305Z ]]> An examination of operating system support for persistent object systems http://nova.newcastle.edu.au/vital/access/manager/Repository/uon:2616 Examines operating system support for persistent systems that execute on conventional hardware architectures. The focus of the paper is to examine the inadequacies of traditional operating systems as vehicles for the construction of persistent systems. The authors concentrate on four major areas, namely addressing, stability and resilience, process management and protection. They examine the consequences of making the operating system kernel itself persistent. They conclude by outlining the requirements which must be met by future operating systems designed to support orthogonal persistence. 2010-04-27T07:00:00.123Z ]]> Co-existence of transaction and non transaction-managed activity in a persistent object store http://nova.newcastle.edu.au/vital/access/manager/Repository/uon:2645 Persistent object stores provide an execution environment in which data and its interrelationships are, by default, retained in their original form beyond the lifetimes of the program or programs that created them. Stability mechanisms ensure that such stores always start up in a self-consistent state, even after non-orderly shutdowns that result from events such as power outages or hardware failures. An efficient means of implementing stability uses Directed Dependency Graphs (DDGs) to facilitate execution of user processes in parallel with updates to the durable store image. The authors have previously shown how these DDGs can be extended and used to provide optimistic, transaction-based concurrency control for processes executing in persistent object stores. The management of persistent objects differs from that afforded by conventional DBMS because the entire dataset exists in the same repository. As in conventional systems, it is appropriate that some data is accessed (queried and mutated) independently of the transaction system. In this paper, we examine the issue of interaction between processes that execute under transaction control with those executing independently of the transaction system. Interestingly, this co-existence is achieved without enforcing transaction semantics on the independent activity. 2010-04-27T06:32:34.518Z ]]> Multi-level neural modelling: an application of object-oriented software engineering http://nova.newcastle.edu.au/vital/access/manager/Repository/uon:2646 Neu-Model, an ongoing project aimed at developing a neural simulation environment that is extremely computationally powerful and flexible, is described. It is shown that the use of good Software Engineering techniques in Neu-Model’s design and implementation is resulting in a high performance system that is powerful and flexible enough to allow rigorous exploration of brain function at a variety of conceptual levels. 2010-04-27T06:32:30.958Z ]]> A testbed for experiments with concurrency control primitives in persistent systems http://nova.newcastle.edu.au/vital/access/manager/Repository/uon:2626 In current research operating systems, support for objects and the persistence of these objects has been recognised as an important consideration. Research systems provide support for these concepts in the kernel. In these systems a great deal of effort has gone into integrating persistence and object structures with the other low level functions of the operating system. The low level nature of the support ensures that these concepts are in every respect a seamless part of the operating system which interacts sensibly with other components of the system. There has been a tendency in such systems to ignore the issues of concurrency control and resilience, with the attitude that these concepts are well understood by the database community, and as such, can be easily added on top of the system at a later date. A research project is described which aims to investigate the implementation of concurrency control and resilience support at the lowest level of the operating system. Concurrency control and resilience are considered to be sufficiently important and complex issues that they merit support at a low layer of the operating system in the same sense that support for persistence belongs at this level. It is a motivating belief for this project that support for fully fledged concurrency control systems in a truly seamless fashion requires appropriate low level functionality provided by the system. The goal of this project is the identification a set of low level operating system primitives through which a variety of both traditional and more advanced concurrency control methods can be implemented on a persistent store. This goal is being approached through the development of a prototype persistent store which can be used as both an experimental environment and a testbed for the demonstration of the viability of the projects results. 2010-04-27T06:19:04.407Z ]]> Artefacts and affordance: the surface of meaning http://nova.newcastle.edu.au/vital/access/manager/Repository/uon:3536 Questions: Can an artefact do more than simply illustrate a concept? Can an artefact avoid its objectness? Can the reception of a designed object avoid the openness of affordance typical of “natural” objects? Can a designer structure meaning as an object? Context: Somewhere between Gibson's ecology of perception (affordance – “the actionable properties between the world and an actor”: Norman) and Norman's “perceived affordance” (“in design, we care much more about what the user perceives than what is actually true”: Norman) there is view of objects/artefacts that includes artefacts as “being for” structured intellectual engagement of a determinable kind. We know what opera is for. We know what research outcomes are for. We can come to know what research artefacts are for. The terms needed can be liberated from a critique of the existing approaches to affordance including those prior to Gibson's seminal work. Significance: The issue of artefacts as “bearers of knowledge” is central to the agony of design research within the university. Strong arguments have been made for the general failure of artefacts to satisfy the criteria of research outcomes. Inquiry/process: Through a philosophical investigation and extension of Gibson's perceptual ecology it is possible to relocate the objects of design within a discourse of meaning that embraces both the “true” affordances and the received/perceived affordances. Outcomes: It is anticipated that introducing an expanded concept of affordance into this debate will offer significant strength and rigour to the arguments of proponents of artefacts as research objects. The conceptual structures will provide a ground for the debate to go beyond its current circularity if not polarity. 2010-04-27T05:07:52.848Z ]]> Camera control and multimedia interaction using individual object recognition http://nova.newcastle.edu.au/vital/access/manager/Repository/uon:5779 Currently, most of the automated, computervision assisted camera control policies are based on human events, such as the speaker gesture and position changes. In addition to these events, in this paper, we introduce a set of natural camera control and multimedia synchronization schemes based on the individual object interaction. We describe in detail, how our unique method, in which the head-pose estimation are used to compute the region of interest (ROI) for recognizing the hand-held object. We explain, from our results, how our approach has achieved robustness, efficiency and unambiguous object interaction during real-time video shooting. 2010-04-27T04:49:46.965Z ]]> A webdilemma in social education: using the internet to build intellectual quality http://nova.newcastle.edu.au/vital/access/manager/Repository/uon:5785 In this article, the WebDilemma, an alternative digital learning object to the WebQuest, will be explored. The WebDilemma draws on the same pedagogical theory that underpins the WebQuest concept, but provides an alternative to the WebQuest that would typically be used in place of a WebQuest when time is tight, or a teacher wished students to come out of their inquiry with an informed opinion on the topic under scrutiny. Like a well-designed WebQuest, the WebDilemma aims to have students transform the information they locate, using an inquiry learning format that has a long history in social education. In this regard, WebDilemmas are not about offering some radically different approach to teaching in the social sciences, but do take well respected educational theories and apply them to the problem of using the internet to promote intellectual quality in the classroom. Consequently, it should be underscored that WebDilemmas are not offered as a replacement for WebQuests, but as their complement. The WebDilemma concept preserves many of the benefits of the WebQuest concept, while offering the possibility of less technically demanding and more rapid development of web learning objects, making the construction of inquiry learning resources that utilise the internet more accessible for less technologically able and/or very busy teachers, as discussed in a recent paper that documents a teacher's experience using the WebDilemma concept with his class. 2010-04-27T04:49:31.696Z ]]> Discovering recurrent image semantics from class discrimination http://nova.newcastle.edu.au/vital/access/manager/Repository/uon:5811 Supervised statistical learning has become a critical means to design and learn visual concepts (e.g., faces, foliage, buildings,etc.) in content-based indexing systems. The drawback of this approach is the need of manual labeling of regions. While several automatic image annotation methods proposed recently are very promising, they usually rely on the availability and analysis of associated text descriptions. In this paper, we propose a hybrid learning framework to discover local semantic regions and generate their samples for training of local detectors with minimal human intervention. A multiscale segmentation-free framework is proposed to embed the soft presence of discovered semantic regions and local class patterns in an image independently for indexing and matching. Based on 2400 heterogeneous consumer images with 16 semantic queries, both similarity matching based on individual index and integrated similarity matching have out performed a feature fusion approach by 26 and 37 in average precisions, respectively. 2010-04-27T04:36:58.493Z ]]>