Finding information
- Authors: Hart, Elizabeth
- Date: 2008
- Type: Text , Book chapter
- Relation: Media Journalism: new approaches to theory and practice p. 288-295
- Full Text: false
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- Description: Introduces journalism and media through an integration of theory and practice, drawing on current Media Studies theory as well as providing practical instruction on how to write journalistic pieces
Firm performance, power, and forced CEO turnover : An empirical study from China
- Authors: Pi, Lili
- Date: 2008
- Type: Text , Conference paper
- Relation: Paper presented at 8th Pacific Employment Relations Association Annual Conference, PERA, Ballarat, Victoria : 19th-22nd November 2008
- Full Text: false
- Description: 2003006638
Food gardens : Cultivating a pedagogy of place
- Authors: Green, Monica
- Date: 2008
- Type: Text , Conference proceedings
- Full Text:
- Description: Place-based education attempts to position the individual in relationship with the human and non-human elements of the life-world, at a place that is welcoming of educational experience and a knowledge base from which to construct a more ecologically sustainable culture. Food gardens, along with ecological restoration projects within schools are experiencing a significant renaissance and are important sites for place-based education. Many of these places are located in and around the immediate environment of a school ground and become significant educational portals through which children explore their world. This paper reports on the literature reviewed for a study on how a pedagogy of place is cultivated within garden experiences. There is limited research about the use of school gardens as an educational tool and the specific pedagogies that support learning in this context. A number of themes emerge from various bodies of literature that provide a conceptual framework for the study of food garden pedagogies. These themes include placebased education, ecological literary, and nature as teacher. It is useful to think about primary school gardens in the light of this literature because it helps frame a research question for a study into how pedagogies of place can be cultivated within food gardens. [Author abstract, ed]
Forecasting model for crude oil prices based on artificial neural networks
- Authors: Haidar, Imad , Kulkarni, Siddhivinayak , Pan, Heping
- Date: 2008
- Type: Text , Conference paper
- Relation: Paper presented at International Conference on Intelligent Sensors, Sensor Networks and Information Processing, ISSNIP 2008, Sydney, New South Wales : 15th-18th December 2008 p. 103-108
- Full Text:
- Description: This paper presents short-term forecasting model for crude oil prices based on three layer feedforward neural network. Careful attention was paid on finding the optimal network structure. Moreover, a number of features were tested as an inputs such as crude oil futures prices, dollar index, gold spot price, heating oil spot price and S&P 500 index. The results show that with adequate network design and appropriate selection of the training inputs, feedforward networks are capable of forecasting noisy time series with high accuracy.
- Description: 2003006659
FrameNet-based fact-seeking answer processing : A study of semantic alignment techniques and lexical coverage
- Authors: Ofoghi, Bahadorreza , Yearwood, John , Ma, Liping
- Date: 2008
- Type: Text , Journal article
- Relation: Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics) Vol. 5360 LNAI, no. (1 December 2008 through 5 December 2008 2008), p. 192-201
- Full Text: false
- Description: In this paper, we consider two aspects which affect the performance of factoid FrameNet-based Question Answering (QA): i) the frame semantic-based answer processing technique based on frame semantic alignment between questions and passages to identify answer candidates and score them, and ii) the lexical coverage of FrameNet over the predicates which represent the main actions in question and passage events. These are studied using a frame semantic-based QA run over the TREC 2004 and TREC 2006 factoid question sets. © 2008 Springer Berlin Heidelberg.
From wilderness to the educational heart : A Tasmanian story of place
- Authors: Green, Monica
- Date: 2008
- Type: Text , Journal article
- Relation: Australian Journal of Environmental Education Vol. 24, no. (2008 2008), p. 35-43
- Full Text: false
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Fuzzy clustering for image segmentation using generic shape information
- Authors: Ali, Mohammad , Karmakar, Gour , Dooley, Laurence
- Date: 2008
- Type: Text , Journal article
- Relation: Malaysian Journal of Computer Science Vol. 21, no. 2 (2008), p. 122-138
- Full Text: false
- Reviewed:
- Description: The performance of clustering algorithms for image segmentation are highly sensitive to the features used and types of objects in the image, which ultimately limits their generalization capability. This provides strong motivation to investigate integrating shape information into the clustering framework to improve the generality of these algorithms. Existing shape-based clustering techniques mainly focus on circular and elliptical clusters and so are unable to segment arbitrarily-shaped objects. To address this limitation, this paper presents a new shape-based algorithm called fuzzy clustering for image segmentation using generic shape information (FCGS), which exploits the B-spline representation of an object’s shape in combination with the Gustafson-Kessel clustering algorithm. Qualitative and quantitative results for FCGS confirm its superior segmentation performance consistently compared to well-established shape-based clustering techniques, for a wide range of test images comprising various regular and arbitrary-shaped objects
Gender stereotypical attitudes : Past, present and future influences on women's career advancement
- Authors: Wood, Glenice
- Date: 2008
- Type: Text , Journal article
- Relation: Equal Opportunities International Vol. 27, no. 7 (2008), p. 613-628
- Full Text: false
- Reviewed:
- Description: The purpose of this paper is to describe a longitudinal study which followed up middle managers who had participated in a survey on attitudes to promotion eight years earlier. The aim was to contact a sample of these individuals to ascertain their current views on women's career advancement in management.
- Description: C1
- Description: 2003006152
Gene expression imputation techniques for robust post genomic knowledge discovery
- Authors: Sehgal, Muhammad Shoaib B , Gondal, Iqbal , Dooley, Laurence
- Date: 2008
- Type: Text , Book chapter
- Relation: Studies in Computational Intelligence p. 185-206
- Full Text: false
- Reviewed:
- Description: Microarrays measure expression patterns of thousands of genes at a time, under same or diverse conditions, to facilitate faster analysis of biological processes. This gene expression data is being widely used for diagnosis, prognosis and tailored drug discovery. Microarray data, however, commonly contains missing values, which can have high impact on subsequent biological knowledge discovery methods. This has been catalyst for the manifest of different imputation algorithms, including Collateral Missing Value Estimation (CMVE), Bayesian Principal Component Analysis (BPCA), Least Square Impute (LSImpute), Local Least Square Impute (LLSImpute) and K-Nearest Neighbour (KNN). This Chapter investigates the impact of missing values on post genomic knowledge discovery methods like, Gene Selection and Gene Regulatory Network (GRN) reconstruction. A framework for robust subsequent biological knowledge inference has been proposed which has shown significant improvements in the outcomes of Gene Selection and GRN reconstruction methods.
Generalisation with symbolic knowledge in online classification
- Authors: Kang, Byeongho , Dazeley, Richard
- Date: 2008
- Type: Text , Conference paper
- Relation: PKAW-08: Proceedings of the Pacific Rim Knowledge Acquisition Workshop 2008
- Full Text: false
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- Description: Increasingly, researchers and developers of knowledge based systems (KBS) have been incorporating the notion of context. For instance, Repertory Grids, Formal Concept Analysis (FCA) and Ripple-Down Rules (RDR) all integrate either implicit or explicit contextual information. However, these methodologies treat context as a static entity, neglecting many connectionists’ work in learning hidden and dynamic contexts, which aid their ability to generalize. This paper presents a method that models hidden context within a symbolic domain in order to achieve a level of generalisation. The method developed builds on the already established Multiple Classification Ripple-Down Rules (MCRDR) approach and is referred to as Rated MCRDR (RM). RM retains a symbolic core, while using a connection based approach to learn a deeper understanding of the captured knowledge. This method is applied to a number of online classification environments and results indicate that the method can learn the information that experts have difficulty providing.
Generating synthetic gene regulatory networks
- Authors: Ram, Ramesh , Chetty, Madhu
- Date: 2008
- Type: Text , Conference paper
- Relation: Third IAPR International Conference, PRIB
- Full Text: false
- Reviewed:
- Description: Reconstructing GRN from microarray dataset is a very challenging problem as these datasets typically have large number of genes and less number of samples. Moreover, the reconstruction task becomes further complicated as there are no suitable synthetic datasets available for validation and evaluation of GRN reconstruction techniques. Synthetic datasets allow validating new techniques and approaches since the underlying mechanisms of the GRNs, generated from these datasets, are completely known. In this paper, we present an approach for synthetically generating gene networks using causal relationships. The synthetic networks can have varying topologies such as small world, random, scale free, or hierarchical topologies based on the well-defined GRN properties. These artificial but realistic GRN networks provide a simulation environment similar to a real-life laboratory microarray experiment. These networks also provide a mechanism for studying the robustness of reconstruction methods to individual and combination of parametric changes such as topology, noise (background and experimental noise) and time delays. Studies involving complicated interactions such as feedback loops, oscillations, bi-stability, dynamic behavior, vertex in-degree changes and number of samples can also be carried out by the proposed synthetic GRN networks.
Genetic resistance to growth of Lucilia cuprina larvae
- Authors: Smith, J. , Colditz, Ian , Piper, L. , Sandeman, Mark , Dominik, S.
- Date: 2008
- Type: Text , Journal article
- Relation: Animal Production Science Vol. 48, no. (2008), p. 1210-1216
- Full Text: false
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- Description: Cutaneous myiasis (fly strike), caused by Lucilia cuprina, is a major ectoparasitic infection of sheep. Previous research has identified contributions of body conformation, wool characteristics and resistance to bacterial dermatoses to resistance to fly strike. This paper investigates whether genetic variation occurs amongst sheep in growth of larvae on skin. Mixed sex Merino sheep in 27 half-sibling groups were challenged with freshly hatched Lucilia cuprina larvae, and survival and growth of larvae were measured after 50 h. Growth but not survival of larvae had moderate heritability (0.29 ± 0.22), comparable to that seen for resistance to nematode parasites in sheep. Phenotypic correlations between resistance to larval growth and wool traits, skin wheal response to intradermal injection of larval excretory secretory products and resistance to internal parasites were negligible; however, there was a significant negative phenotypic correlation with fleece rot score after exposure of sheep to simulated rain at a time independent to that of measurement of larval growth. Larval growth was negatively correlated with peripheral blood eosinophil numbers measured either before or after larval challenge. In addition, larval growth in vitro on serum collected from challenged sheep was moderately associated with larval growth in vivo. A search for quantitative trait loci (QTL) for larval survival and growth was conducted in data from 94 half-sibling progeny of a Merino × Romney sire backcrossed to Merino ewes. Potential QTL for larval growth were identified on chromosome 11 and for larval survival on chromosome 18, although phenotyping greater numbers of sheep and a higher marker density on these chromosomes is necessary to confirm the result. We conclude that this study has identified a novel level of resistance of Merino sheep to growth of L. cuprina larvae that may be mediated in part through actions of anti-larval factors in serum and eosinophils. Further studies are required to establish the impact of growth retardation on the severity of systemic responses of sheep to fly strike and on the biology of adult flies
Geographic constraint mobility model for ad hoc network
- Authors: Ahmed, Sabbir , Karmakar, Gour , Kamruzzaman, Joarder
- Date: 2008
- Type: Text , Conference paper
- Relation: Proceedings of the 2008 IEEE International Symposium on Modeling, Analysis & Simulation of Computer & Telecommunication Systems
- Full Text: false
- Reviewed:
- Description: In this paper, we propose a mobility model and present its simulation tool to generate realistic mobility traces for mobile ad hoc network. The mobility model is capable of creating realistic node movement pattern in the presence of geographic constraints by exploiting the concepts of anchors. The model dynamically places anchors depending upon the context of the environment through which nodes are guided to move towards the destination, and obstacles of arbitrary shapes with or without doorways and any existing pathways, in full or part of the terrain can be incorporated which makes the simulation environment more realistic. The characteristics of the proposed mobility model tested on a real world university campus map at various movement patterns are presented that illustrate the impact of the mobility model on the performance of a routing protocol and usefulness of the proposed scenario generation tool.
Global optimization methods of solving optimization problems and systems of nonlinear equations
- Authors: Bai, Fusheng , Wu, Zhiyou
- Date: 2008
- Type: Text , Conference paper
- Relation: 9th Academic Exchange Meeting of the Operations Research Society of China 2008
- Full Text: false
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Global optimum design of uniform FIR filter bank with magnitude constraints
- Authors: Wu, Changzhi , Teo, Kok Lay , Rehbock, Volker , Dam, Haihuyen
- Date: 2008
- Type: Text , Journal article
- Relation: IEEE Transactions on Signal Processing Vol. 56, no. 11 (2008), p. 5478-5486
- Full Text: false
- Reviewed:
- Description: The optimum design of a uniform finite impulse response filter bank can be formulated as a nonlinear semi-infinite optimization problem. However, this optimization problem is nonconvex with infinitely many inequality constraints. In this paper, we propose a new hybrid approach for solving this highly challenging nonlinear, nonconvex semi-infinite optimization problem. In this approach, a gradient-based method is used in conjunction with a filled function method to determine a global minimum of the problem. This new hybrid approach finds an optimal result independent of the initial guess of the solution. The method is applied to some existing examples. The results obtained are superior to those obtained by other existing methods. © 2008 IEEE.
Global order : accommodating diversity in the 21st century
- Authors: Edmondson, Elizabeth
- Date: 2008
- Type: Text , Journal article
- Relation: Global Studies Journal Vol. 1, no. 2 (2008), p. 25-34
- Full Text: false
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- Description: The challenges arising from climate change consequences are likely to impact upon states and other international actors in ways that present new manifestations and dynamics of globalisation. Climate change issues are creating political, economic and social challenges for the international political community, key economic actors, and states, and seem set to alter many dimensions of human social organisation. In the 21st century, climate change is set to create unprecedented global challenges, highlighting inequities and inequalities in functional and material capabilities, and revealing more fully the limits of both domestic and international legal capacities. It is, therefore, timely to engage with some of the international political dimensions of global climate change, including the manner in which it raises new questions regarding the nature of rights and responsibilities and their distribution. There can be little doubt that climate change impacts would be experienced quite differently if the contemporary world was not characterised by global communication and knowledge sharing networks and complex patterns of internationalised trade, production and security. This paper examines the pressing imperatives of responding to climate change consequences by utilising these characteristics of 20th century globalisation to generate new and more effective means of accommodating diverse rights, responsibilities and interests.
Globalism's 'other' invader: Equine influenza
- Authors: McConville, Chris
- Date: 2008
- Type: Text , Book chapter
- Relation: A global racecourse : work, culture and horse sports p. 159-162
- Full Text: false
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Globlization, demography, history and the Australian investor
- Authors: Hettihewa, Samanthala , Wright, Christopher
- Date: 2008
- Type: Text , Conference paper
- Relation: Paper presented at 37th Annual Conference of Economists, Gold Coast, Queensland : 30th September - 4th October 2008
- Full Text: false
- Description: Ever seeking to increase returns at a given or lower risk levels , investors are finding that globalization and market integration are making it more difficult to achieve their targets by diversifying their portfolios across nations. Australia moved from being a poor investment prospect in the last third of the 20th Century to becoming fourth in world competitiveness. In contrast, the New Zealand economy has become ever more dependent on volatile agricultural commodities and faces serious infrastructure issues that may hinder its efforts to enhance or even retain its competitiveness. This paper projects from the recent history of the Australian and New Zealand economies to consider how they are likely to fare in resolving the early 21st Century challenges of globalization and demography and asks if Australian investors should consider investing closer to home.
- Description: 2003006644
Graphs and subgraphs with bounded degree
- Authors: Teska, Jakub
- Date: 2008
- Type: Text , Thesis , PhD
- Full Text:
- Description: "The topology of a network (such as a telecommunications, multiprocessor, or local area network, to name just a few) is usually modelled by a graph in which vertices represent 'nodes' (stations or processors) while undirected or directed edges stand for 'links' or other types of connections, physical or virtual. A cycle that contains every vertex of a graph is called a hamiltonian cycle and a graph which contains a hamiltonian cycle is called a hamiltonian graph. The problem of the existence of a hamiltonian cycle is closely related to the well known problem of a travelling salesman. These problems are NP-complete and NP-hard, respectively. While some necessary and sufficient conditions are known, to date, no practical characterization of hamiltonian graphs has been found. There are several ways to generalize the notion of a hamiltonian cycle. In this thesis we make original contributions in two of them, namely k-walks and r-trestles." --Abstract.
- Description: Doctor of Philosophy
Graphs of order two less than the Moore bound
- Authors: Miller, Mirka , Simanjuntak, Rinovia
- Date: 2008
- Type: Text , Journal article
- Relation: Discrete Mathematics Vol. 308, no. 13 (2008), p. 2810-2821
- Full Text: false
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- Description: The Moore bound for a directed graph of maximum out-degree d and diameter k is Md,k=1+d+d2++dk. It is known that digraphs of order Md,k (Moore digraphs) do not exist for d>1 and k>1. Similarly, the Moore bound for an undirected graph of maximum degree d and diameter k is . Undirected Moore graphs only exist in a small number of cases. Mixed (or partially directed) Moore graphs generalize both undirected and directed Moore graphs. In this paper, we shall show that all known mixed Moore graphs of diameter k=2 are unique and that mixed Moore graphs of diameter k3 do not exist.
- Description: C1