Circumferential traversal techniques for characterizing shapes in digital images
- Authors: Maeder, Anthony
- Date: 1997
- Type: Text , Conference proceedings
- Full Text: false
- Description: Characterizing of region shapes in digital images is a common requirement in medical image processing. This paper describes an approach based on successive traversals around the region boundary, enabling a sequence of related shape information at different scales to be constructed. The approach is useful in that it allows several different shape characteristics to be determined using the same set of data. The approach and its implementation is described, and an example of its application to a problem in bio-medical cell discrimination is considered and compared with results from more conventional shape characterization techniques.
- Description: E1
Segmentation of MR images using multiresolution wavelet representations
- Authors: Pham, Binh
- Date: 1997
- Type: Text , Conference proceedings
- Full Text: false
- Description: A wavelet-based multiscale scheme for segmenting MR images is presented, which aims to extract structures of different sizes by performing segmentation from coarse to fine scales. This scheme alleviates some common difficulties encountered by region-based segmentation to avoid over-segmentation as well as to prevent small regions from being missed. It also allows users more effective control over the segmentation process in order to extract features suitable for their own purposes.
- Description: E1
Artists who make books
- Authors: Mann, Allan
- Date: 2002
- Type: Text , Conference proceedings
- Full Text: false
Victa Vegemite & Violet Crumble (Australian) Artists who make books
- Authors: Mann, Allan
- Date: 2002
- Type: Text , Conference proceedings
- Full Text: false
- Description: 2003007059
Automatic assessment marking and plagiarism detection using SOM, fuzzy logic, and decision trees
- Authors: Ghosh, Moumita , Ghosh, Ranadhir
- Date: 2005
- Type: Text , Conference proceedings
- Full Text: false
- Description: In this paper, we propose and discuss a fully automated system for marking and plagiarism detection for programming assessment using self organizing map (SOM) and fuzzy logic. The plagiarism approach involves finding similarities between programs submitted by students, and rank them depending on their similarity metrics based SOM clustering. The distance from the cluster centroid for individual assignment is calculated using fuzzy technique. The system is a syntax dependant approach for C language and is based on a tree data structure with leafs and attributes that denote the semantic translation of the given program. The system has been tested successfully on real world programming assignments from software development course.
Beyond clusters : Current practices & future strategies
- Authors: Lowe, Julian , Braun, Patrice , McRae-Williams, Pamela
- Date: 2005
- Type: Text , Conference proceedings
- Full Text: false
- Description: "These conference proceedings document the research of participants and include topics specific to clusters, networks, regional development, information and communication technologies, and competitiveness." -- Preface.
Parallel selection of multi-category features for online handwritten character recognition
- Authors: Ghosh, Ranadhir , Ghosh, Moumita , Yearwood, John
- Date: 2005
- Type: Text , Conference proceedings
- Full Text: false
- Description: Online handwritten recognition is gaining more interest due to the increasing popularity of hand-held computers, digital notebooks and advanced cellular phones. The large number of writing styles and the variability between them makes the handwriting recognition problem a very challenging area for researchers. Many previous efforts have utilized many different approaches for recognition in online handwriting using various ANN classifier-modeling techniques. Different types of feature extraction techniques have also been used. It has been observed that, beyond a certain point, the inclusion of additional features leads to a worse rather than better performance. Moreover, the choice of features to represent the patterns affects several aspects of pattern recognition problems such as accuracy, required learning time and a necessary number of samples. A common problem with the multi-category feature classification is the conflict between the categories. None of the feasible solutions allow simultaneous optimal solution for all categories. In order to find an optimal solution the search space can be divided based on an individual category in each sub region and finally merging them through decision spport system. In this paper we propose a canonical GA based modular feature selection approach combined with standard MLP for multi category feature selection in online handwriting recognition.
Proceedings of the Sixteenth Australasian Workshop on Combinatorial Algorithms (AWOCA 2005)
- Authors: Ryan, Joe , Manyem, Prabhu , Sugeng, Kiki Ariyanti , Miller, Mirka
- Date: 2005
- Type: Text , Conference proceedings
- Full Text: false
A semantic method to information extraction for decision support systems
- Authors: Ofoghi, Bahadorreza , Yearwood, John , Ghosh, Ranadhir
- Date: 2006
- Type: Text , Conference proceedings
- Full Text: false
- Description: In this paper, we describe a novel schema for a more semantic text mining process which results in more comprehensive decision making activity by decision support systems via providing more effective and accurate textual information. The utility of two semantic lexical resources; Frame Net and Word Net, in extracting required text snippets from unstructured free texts yields a better and more accurate information extraction process to deliver more precise information either to a DSS or to a decision maker. We explain how the usage of these lexical resources could elevate a focused text mining process which could be applied to an information provider system in a decision support paradigm. The preliminary results obtained after a starter experiment show that the hybrid information extraction schema performs well on some semantic failure situations.
- Description: 2003010644
Being Australian and the problem of detainees : Petro Georgiou and inclusivity
- Authors: Rodan, Debbie , Mummery, Jane
- Date: 2006
- Type: Text , Conference proceedings
- Full Text: false
- Description: The plethora of public and political discourses concerned with refugees/detainees in Australia coalesced in 2005 around the private members bill introduced by Petro Georgiou (Member of Parliament for the House of Representatives affiliated with the Liberal Party of Australia) in May 2005. This bill, aimed at reforming Australia’s immigration detention policy, brought about significant changes at the legislative level (June 2005) with regard to Australia’s practices in the mandatory detention of refugees, especially the detention of children and families. These changes were also both prefaced by and led to a considerable amount of public debate in the Australian media. On this basis, 2005 has been a highly significant period with regard to the public sphere discussion of detainees, mandatory detention, and ensuing issues of national inclusivity, exclusivity, and just what it means – and takes – to be Australian. This paper thus aims to unpack part of this public discussion by analyzing letters to the editor devoted to the above issues and published in Australia’s national broadsheet The Australian between January and July 2005. In addition to outlining the major public discourses in use in these letters, this paper also flags the need for a methodology able to consider not only content but its situatedness in and implications for broader socio-political theory. Given the inextricability of such public discourses from broader social and political theories – those concerned, for instance, with identity, representation, difference, democracy, and governmentality – we use here a cross-disciplinary approach that utilises both media and discourse analysis and contemporary political and cultural theory. Consequently this paper is in two key parts. After identifying and examining the discursive positions prevalent in these letters, we then move to analyse their socio-cultural implications, unpacking just how these discursive positions function within and in terms of broader social and political theories.
- Description: 2003004499
Changing fluxes of sediments and salts as recorded in lower River Murray wetlands, Australia
- Authors: Gell, Peter , Fluin, Jennie , Tibby, John , Haynes, Deborah , Khanum, Syeda , Walsh, Brendan , Hancock, Gary , Harrison, Jennifer , Zawadzki, Atun , Little, Fiona
- Date: 2006
- Type: Conference proceedings
- Full Text:
- Description: The River Murray basin, Australia's largest, has been significantly impacted by changed flow regimes and increased fluxes of salts and sediments since settlement in the 1840s. The river's flood plain hosts an array of cut-off meanders, levee lakes and basin depression lakes that archive historical changes. Pre-European sedimentation rates are typically approx. 0.1-1 mm year-1, while those in the period after European arrival are typically 10 to 30 fold greater. This increased sedimentation corresponds to a shift in wetland trophic state from submerged macrophytes in clear waters to phytoplankton-dominated, turbid systems. There is evidence for a decline in sedimentation in some natural wetlands after river regulation from the 1920s, but with the maintenance of the phytoplankton state. Fossil diatom assemblages reveal that, while some wetlands had saline episodes before settlement, others became saline after, and as early as the 1880s. The oxidation of sulphurous salts deposited after regulation has induced hyperacidity in a number of wetlands in recent years. While these wetlands are rightly perceived as being heavily impacted, other, once open water systems, that have infilled and now support rich macrophyte beds, are used as interpretive sites. The rate of filling, however, suggests that the lifespan of these wetlands is short. The rate of wetland loss through such increased infilling is unlikely to be matched by future scouring as regulation has eliminated middle order floods from the lower catchment.
Detecting rice discoloration with an image analyser
- Authors: Armstrong, Bruce , Blakeney, A.B. , Armstrong, T.A. , Aldred, Peter
- Date: 2007
- Type: Text , Conference proceedings
- Full Text: false
- Description: 2003005465
Interdisciplinary higher education and the Melbourne model
- Authors: Davies, Martin , Devlin, Marcia
- Date: 2007
- Type: Text , Conference proceedings
- Relation: Philosophy of Educaiton Society of Australasia Conference; Wellington, New Zealand; 6th-9th December 2007; published in Creativity, enterprise, policy : New directions in education p. 1-16
- Full Text:
- Reviewed:
- Description: The so-called ‘Melbourne Model’ has recently been adopted by the Council of the University of Melbourne, Australia after a long consultation process and widespread media attention. It proposes the design of new subjects which offer what are referred to as ‘different ways of knowing’ from students’ ‘core’ disciplines, partly through ‘the delivery of breadth subjects that are interdisciplinary in character’. This paper explores interdisciplinary higher education in the light of The Melbourne Model’. Definitional issues associated with the term ‘academic discipline’, as well as the newer terms ‘interdisciplinary’, ‘pluridisciplinary’, ‘cross-disciplinary’, ‘transdisciplinary’ and ‘multidisciplinary’ are examined. Some of the pedagogical issues inherent in a move from a traditional form of educational delivery to that underlined by the Melbourne Model are outlined. Some epistemological considerations relevant to multidisciplinarity and interdisciplinarity are discussed.
Model of ICT adoption: A framework for value creation in East Java SME agribusiness enterprise (EJ-SMAES)
- Authors: Sudaryanto, Yanto , Courvisanos, Jerry , Soekartawi, IR
- Date: 2007
- Type: Text , Conference proceedings
- Full Text: false
- Description: The aim of this paper is to demonstrate the importance of technological investment as an innovation creates benefits either in macro and micro economics. In particular, adopting information and communication technology (ICT) for East Java's SMAES can create value within the agribusiness sub-systems by digitalized coordination.
Quantifying values: A sampling methodology for use in assessing the impacts on tourism, local community and businesses of Victoria's marine protected areas
- Authors: Hall, Nina , Sillitoe, Jim
- Date: 2007
- Type: Text , Conference proceedings
- Full Text: false
- Description: A sampling methodology has been devised to facilitate the selection of a purposeful sample of marine parks and sanctuaries for the investigation of their impacts on tourism, local community and businesses. The methodology is based on multi-attribute utility theory used for comparing complex alternatives in decision making and takes into account those key attributes of Victoria's thirteen marine national parks and eleven marine sanctuaries that have been identified through both published and draft management plans, government policies and relevant strategies. The attributes are: tourism services, activities, community engagement, visitation, values, interpretation, access, location, conservation significance, and regional context. Values of each marine protected area are quantified and establishment of a total attribute value score for a typical area enables the comparison between individual marine parks and sanctuaries. To strengthen the methodology, a panel of independent experts representing tourism, local government and community organisations have been invited to express their views with regard to these attributes, and their responses have been incorporated into the research.
Successful social entrepreneurship: The case of the Eaglehawk Recycle Shop
- Authors: Harman, Jessie
- Date: 2007
- Type: Text , Conference proceedings
- Full Text: false
- Description: This paper reports examines a successful partnership between a local government authority and a private nonprofit organisation to operate a community recycling venture at the Bendigo Municipal Tip in central Victoria.
A framework for a QoS based adaptive topology control system for wireless ad hoc networks with multibeam smart antennas
- Authors: Rokonuzzaman, S. K. , Pose, Ronald , Gondal, Iqbal
- Date: 2008
- Type: Text , Conference proceedings
- Full Text: false
- Description: Wireless ad hoc networks are self-configurable distributed systems. One of the major problems in traditional wireless ad hoc networks is interference. The interference could be reduced using smart directional antennas. In this study, multibeam smart antennas have been used. When using this type of antenna, two nodes can communicate when both the sending and receiving beams are pointing towards each other. Also, a node can only communicate with a subset of nodes in its neighborhood depending on the number of beams and their beamwidth. Thus, the network topology needs to be dynamic in this case, and by controlling the topology network, performance can be increased. In this paper, we present a framework of a cross layer approach of topology control that interacts with the routing layer and MAC layer and meets the required QoS of different data streams. The approach is fully distributed. When the network is initialized, the algorithm builds an initial connected topology and the routing algorithm uses this topology to find paths for the current communications. Then, depending on the network scenario, current communications and the required QoS, the topology control layer changes the topology to optimize the network performance. This study concerns suburban ad hoc networks (SAHN) where nodes tend to be fixed and are aware of their locations.
Advances in canonical duality theory with applications to global optimization
- Authors: Gao, David
- Date: 2008
- Type: Text , Conference proceedings
- Relation: FOCAPO 2008, Boston, June 29th-July 02, Published in Proceedings of the Fifth International Conference Foundations of Computer-Aided Process Operations pg. 73-82 p. 73-81
- Full Text: false
- Reviewed:
An argument structure abstraction for Bayesian belief networks: Just outcomes in on-line dispute resolution
- Authors: Muecke, Nial , Stranieri, Andrew
- Date: 2008
- Type: Text , Conference proceedings
- Full Text:
- Description: There are many different approaches for settling disputes on-line, such as simple email systems, fixed bid systems and intelligent systems. However, to date there have been no attempts to integrate decision support methods into the dispute resolution process for the purpose of supporting outcomes that are consistent with judicial reasoning. This paper describes how a model of judicial reasoning can be used to assist divorcees with the resolution of property issues online, in a manner that is consistent with decisions a judge would make if the matter was heard in Court. The approach uses an argument based model of the discretionary nature of decisions made by judges in Australian Family Law. This is integrated with a protocol for online dispute dialogue. Predictions of the likelihood of alternates outcomes is achieved with a series of Bayesian Belief Networks