54 resultados para SURF Descriptor


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The socio-technical framework (STF) is useful for describing how technologies are embedded in social systems and how people, groups and technologies are interrelated. This perspective, however, lacks theoretical specificity and has limited usefulness in explaining the dynamics of actual situations. In this paper we address the question of how to extend the STF to better analyse technologies in their social context. We build on the STF by including the concept of ‘information ecology’ and research on service provision to suggest a more empirically focussed way of analysing the relationships between people and technologies. In particular, we examine changes that have occurred as B2C eCommerce technologies have been implemented in service organisations, using case study findings from retail banking to introduce the concept of ‘Coactive Commerce Systems’. This concept provides a theoretically based descriptor for understanding the technologically-mediated interrelationships between organisations and their customers.

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Albie Thomas is a seminal figure in the history of Avant-Garde film in Australia. In the mid-1960s he helped found UBU Films, the precursor of the Sydney Film-Makers' Co-operative, and he has made a number of short and feature-length experimental films. Thoms has written on film and film cultures for an array of journals and maintains an active involvement with aspects of the surf film industry in Australia. In this interview, Thoms discusses his early UBU films, and the connections between those films and Palm Beach (1979). Styles of surf film and the influences on Thoms' filmmaking are also discussed.

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Not all documentary films and videos are sober depictions of the real world. Documentary representations can present expressive, entertaining and spectacular images. This book examines such innovative approaches as they occur within the process of 'documentary display' - a practice which emphasises the visual attractions of documentary representation. Works of documentary display explore modes of exhibitionistic 'showing' in which sensation is frequently the vehicle of cognition and knowledge. Such a display is analysed within the popular and prominent forms of found-footage film, 'rockumentary', the city film, nonfiction surf film and video, and certain views of natural science topics. This accessible and informed study - with its focus on entertaining, popular, spectacular and sensational froms of nonfiction representation - makes an important contribution to theoretical analyses of documentary film and video

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In six studies on the I Ching - an ancient Chinese system of divination - successful predictions of first- and second-hexagrams (i.e., hexagram hitting) based on pre-selections of corresponding descriptor-pairs have ranged from chance, to significantly above chance. No significant effect below chance has ever been found. Hexagram hitting has been predicted by measures such as paranormal belief, time perspective, and meaningfulness. Storm (2008a) found a near-significant aggregate hexagram hit rate of 27%. Though these results are encouraging, there has been no assessment of the reliability and validity of the main test instrument used in the I Ching studies, the Hexagram Descriptor Form (HDF). To test the validity of the HDF, three control methods were tested against the experimental method. Taking first- and second-hexagram hit rates together, three out of 22 tests on the experimental method (14%) were significant or near-significant. Three significant or near-significant outcomes out of 66 control tests (4.5%) were attributed to chance. Inter-rater reliability was tested using two I Ching experts who judged the 64 descriptor-pairs of the HDF for suitability against their corresponding hexagram readings. The correlation between judges' ratings was not significant (the mean rating ranged between 60% and 82%). Using the pooled data of six studies, the HDF was tested for possible selection and outcome biases. A selection bias was found, but no outcome biases were found. The I Ching and the HDF were considered suitable for parapsychological research.

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The clear presence of vengeance as an underlying motive behind calls for self-help in the immediate aftermath of some violent homicides indicates that community protection is largely irrelevant where vigilantism is associated with these 'signal crimes'. This paper documents the characteristics of five major cases between 2006 and 2007 where the threat ofcommunity-generated vigilante activity received media coverage, the nature of that coverage, the role of police in cautioning the public to reassert their legitimacy and monopoly over the correct procedures for conducting criminal
investigations and the implications of these issues in light of the moral 'outrage' associated with the status of the victim in each case. In an era of increased community concern about crime, it appears vigilantism is an important rhetorical indicator of the level of collective insecurity prompted by fatal assaults, especially in regional areas characterised by underlying racial
tensions and cases involving vulnerable child victims. However, when viewed alongside the virtual victimhood promoted by stylised press reporting, it appears 'vigilantism' is a pertinent signifier of public anxiety over the timing, location and antecedents of some serious violent crimes, rather than a descriptor of any substantive community-generated measures aimed at promoting greater levels of public safety.

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The blue glass is always the hardest to find. On the beach you catch the waves bringing back the glass from forgotten tossed bottles, frosted green, clear, or mottled pale brown. But the blue glass - that's the real thing. I search for days without finding any. Sometimes there are slivers; other days, small chunks. Like a beachcomber, I comb the sands for it. I take the glass home and make some into jewellery and touchstones for people to hang on to; pour essential oils on others so the scents waft heavenward and meld together with the glass to form a bond. Words are like that. They can fuse with each other and ignite, or just quietly combine, On sunny days, I take my books with me to the beach. I toss words back and forth in my mind, like churning waves. I cobble them together, A phrase here. A sentence there. The water. The sun. The sand. The glass. The words. The paper. The Connection. I find myself enveloped in it all. The glass is from bottles tossed into the surf by unthinking people - picnickers, vacationers, those who don't have to return here and live with the remnants of their actions. Over time, the broken glass is ground and moulded by the action of the waves; the sharp edges are softened and etched by the sand and water, The sea glass is washed up on shore and picked up by beachcombers. Some recycle it for other uses like me; others just keep it as a reminder of a day at the beach. The words I sift through as I sit on the sand are measured in the sea glass. I pick each word up and look through it to see how much light shines through. What use do 1 have for it? A poem? An essay? A fragment of a sentence, for something to be said in the future? I watch the sun rest uneasily on its bed of water and slide slowly, farther down. I know the hot summer is coming to a close and I am loath to let go of the closeness I feel with nature. I live to find the blue glass, and sometimes it just happens. My search for Indian migrant women was like my quest for the blue glass. It was not an easy task. It became a process of rummaging through other people's lives, searching for fragments and relics. Eventually I was able to fit pieces together to form a mosaic of their lives in that other time, that other place. And also in this present time, in this place they now call home, Australia.

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Built environment and lived experience are inextricably interwoven. The Australian State of Victoria’s planning framework prioritises the physical characteristics of space above their socio-psychological correlates, as reflected in the relatively limited remit of ‘place’ in formal decision-making. The Victorian planning model struggles to accommodate the uniqueness of specific places in the process of development, despite the driving role it plays in expansion. A literature review investigating definitions of place and place identity determined that although place has been defined variously, and at times with some contradiction, there is broad consensus that it can be understood as the interrelation between the physical characteristics of a landscape and the sensory faculties of an individual and an individual’s experience. This interrelationship is in turn determined by social constructs. Depending on an individual’s length of residence in a particular physical location, place influences individual and social psychology through both the formation of place attachment and identity. While place attachment to landscapes has been described using a variety of complex methodologies, translation of this work into architectural and planning practice has been limited within Australia in general and Victoria in particular. The Victorian Shires of Surf Coast and Frankston are considered as examples of current best practice in integrating place into planning. Key issues highlighted in the conclusion include: the difficulties of incorporating qualitative information within the Victorian Planning Scheme; the importance of correctly measuring place attachment, rather than landscape preference; and the complexities, costs and ethical implications of describing place attachment for integration within the planning system.

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How to recognize human action from videos captured by modern cameras efficiently and effectively is a challenge in real applications. Traditional methods which need professional analysts are facing a bottleneck because of their shortcomings. To cope with the disadvantage, methods based on computer vision techniques, without or with only a few human interventions, have been proposed to analyse human actions in videos automatically. This paper provides a method combining the three dimensional Scale Invariant Feature Transform (SIFT) detector and the Latent Dirichlet Allocation (LDA) model for human motion analysis. To represent videos effectively and robustly, we extract the 3D SIFT descriptor around each interest point, which is sampled densely from 3D Space-time video volumes. After obtaining the representation of each video frame, the LDA model is adopted to discover the underlying structure-the categorization of human actions in the collection of videos. Public available standard datasets are used to test our method. The concluding part discusses the research challenges and future directions.

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Human action recognition has been attracted lots of interest from computer vision researchers due to its various promising applications. In this paper, we employ Pyramid Histogram of Orientation Gradient (PHOG) to characterize human figures for action recognition. Comparing to silhouette-based features, the PHOG descriptor does not require extraction of human silhouettes or contours. Two state-space models, i.e.; Hidden Markov Model (HMM) and Conditional Random Field (CRF), are adopted to model the dynamic human movement. The proposed PHOG descriptor and the state-space models with respect to different parameters are tested using a standard dataset. We also testify the robustness of the method with respect to various unconstrained conditions and viewpoints. Promising experimental result demonstrates the effectiveness and robustness of our proposed method.

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Motivated by existing cinematic conventions known as film grammar, we proposed a computational approach to determine tempo as a high-level movie content descriptor as well as means for deriving dramatic story sections and events occurring in movies. Movie tempo is extracted from two easily computed aspects in our approach: shot length and motion. Story sections and events are generally associated with changes in tempo, and are thus identified by edges located in the tempo function. In this paper, we analyze our initial founding of the tempo function on the basis that the distribution of both shot length and motion in movies is normal. Given that the distribution of shot length is approximately Weibull as confirmed in our experiments, we examine the impact of modelling and modifying the contributions of shot length to tempo. We derive an appropriate normalization function that faithfully encapsulates the role of shot length in tempo perception, and analyze the changes to the story sections identified in films.

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Southern Australia is currently divided into three marine biogeographical provinces based on faunal distributions and physical parameters. These regions indicate eastern and western distributions, with an overlap occurring in the Bass Strait in Victoria. However, studies indicate that the boundaries of these provinces vary depending on the species being examined, and in particular on the mode of development employed by that species, be they direct developers or planktonic larvae dispersers. Mitochondrial DNA sequence analysis of the surf barnacle Catomerus polymerus in southern Australia revealed an east–west phylogeographical split involving two highly divergent clades (cytochrome oxidase I 3.5 ± 0.76%, control region 6.7 ± 0.65%), with almost no geographical overlap. Spatial genetic structure was not detected within either clade, indicative of a relatively long-lived planktonic larval phase. Five microsatellite loci indicated that C. polymerus populations exhibit relatively high levels of genetic divergence, and fall into four subregions: eastern Australia, central Victoria, western Victoria and Tasmania, and South Australia. FST values between eastern Australia (from the eastern mitochondrial DNA clade) and the remaining three subregions ranged from 0.038 to 0.159, with other analyses indicating isolation by distance between the subregions of western mitochondrial origin. We suggest that the east–west division is indicative of allopatric divergence resulting from the emergence of the Bassian land-bridge during glacial maxima, preventing gene flow between these two lineages. Subsequently, contemporary ecological conditions, namely the East Australian, Leeuwin, and Zeehan currents and the geographical disjunctions at the Coorong and Ninety Mile Beach are most likely responsible for the four subregions indicated by the microsatellite data.

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Assessment criteria designed to fully evaluate prescribed learning outcomes is a significant aid to both student and staff alike. For the student, it allows them to fully understand the requirements for a specific grade and for staff, it simplifies marking (grading) and minimises the likelihood of student appeals against assessment. Whilst criterion referencing is common place in the more traditional analytical type taught papers common in the Engineering degree curriculum it is perhaps less commonly utilised for research based papers. Presented here is a case study where both learning outcomes and achievement criteria have been proposed for a postgraduate research methodology paper which prepares students for their thesis. It has significant cross over to a descriptor for the thesis paper itself and is considered a template which could be equally applied to other subject domains where research methodology is taught.

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Textural image classification technologies have been extensively explored and widely applied in many areas. It is advantageous to combine both the occurrence and spatial distribution of local patterns to describe a texture. However, most existing state-of-the-art approaches for textural image classification only employ the occurrence histogram of local patterns to describe textures, without considering their co-occurrence information. And they are usually very time-consuming because of the vector quantization involved. Moreover, those feature extraction paradigms are implemented at a single scale. In this paper we propose a novel multi-scale local pattern co-occurrence matrix (MS_LPCM) descriptor to characterize textural images through four major steps. Firstly, Gaussian filtering pyramid preprocessing is employed to obtain multi-scale images; secondly, a local binary pattern (LBP) operator is applied on each textural image to create a LBP image; thirdly, the gray-level co-occurrence matrix (GLCM) is utilized to extract local pattern co-occurrence matrix (LPCM) from LBP images as the features; finally, all LPCM features from the same textural image at different scales are concatenated as the final feature vectors for classification. The experimental results on three benchmark databases in this study have shown a higher classification accuracy and lower computing cost as compared with other state-of-the-art algorithms.

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Childlessness is increasing in Australia and has resulted in an upsurge of media commentary on the lives of childless women, This paper investigates the use of the label 'childless' in the Australian print media by drawing meaning and understanding from these representations within the context of pronatalist ideologies. Our analysis suggests that childless(ness) is used as an irrelevant descriptor and as a discreditable attribute, which fudher serves to perpetuate negative othering stereotypes of childless women. This is particularly exemplified through the representation of Australia's Prime Minister Julia Gillard by the print media. This analysis highlights the continued positioning of women in regards to their reproductive status.

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The problem of object recognition is of immense practical importance and potential, and the last decade has witnessed a number of breakthroughs in the state of the art. Most of the past object recognition work focuses on textured objects and local appearance descriptors extracted around salient points in an image. These methods fail in the matching of smooth, untextured objects for which salient point detection does not produce robust results. The recently proposed bag of boundaries (BoB) method is the first to directly address this problem. Since the texture of smooth objects is largely uninformative, BoB focuses on describing and matching objects based on their post-segmentation boundaries. Herein we address three major weaknesses of this work. The first of these is the uniform treatment of all boundary segments. Instead, we describe a method for detecting the locations and scales of salient boundary segments. Secondly, while the BoB method uses an image based elementary descriptor (HoGs + occupancy matrix), we propose a more compact descriptor based on the local profile of boundary normals’ directions. Lastly, we conduct a far more systematic evaluation, both of the bag of boundaries method and the method proposed here. Using a large public database, we demonstrate that our method exhibits greater robustness while at the same time achieving a major computational saving – object representation is extracted from an image in only 6% of the time needed to extract a bag of boundaries, and the storage requirement is similarly reduced to less than 8%.