986 resultados para Missing values


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Problem Statement: Universities are faced with the challenging task of educating an increasingly diverse and mobile student community. An understanding of the backgrounds of students and their expectations is central to ensure effective delivery of educational and support services to enhance student experience and satisfaction. The study of student personal values is able to provide better understanding of student demands and aspirations and to assist universities to target educational and support services to meet the differential needs of students.

Purpose of Study: To examine the differences in personal values among Asian international postgraduate students studying in Australian universities and to discuss the strategic implications of these differences in relation to enhancing student experience and satisfaction.

Research Methods: Data collected from a sample of 371 postgraduate students from China, India, Indonesia and Thailand studying in five universities in Victoria, Australia. Personal values were measured using Kahle’s (1983) List Of Values (LOV). Factor analysis was undertaken to determine the underlying personal value domains and Structural Equation Modelling (SEM) to analyse the relationship of the value constructs to student satisfaction. ANOVA and MANOVA tests employed to examine the differences of personal values between the nationalities, gender and age.

Findings: Factor Analysis resulted in a two factor solution and labelled as Self-efficacy and Hedonism which explained 73.5 percent of the variance. MANOVA and ANOVA results indicated significant differences (.001) across the values constructs of Self-efficacy and Hedonism and the individual variables between nationalities, gender and age.

SEM results indicated a link between student satisfaction and the value domains of Self-efficacy and Hedonism.

Conclusions: The study highlighed the opportunities for universities to recognise that Asia is a differentiated market place and the development of segmented approach in designing educational programs as part of the strategy to enhance student experience and satisfaction. The inclusion of cultural aspects in educational programs, promotional material that fits in with different cultural backgrounds of students, self-paced learning approaches, promotion of cross cultural understanding among university staff are among the recommended strategies.

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Places encompass the physical setting, as well as human experience and interpretation. Although sense of place definition nominally includes the physical environment, most research has emphasized the social construction of sense of place and neglect the important contribution of the physical environment to place meanings and attachment. On the other side, theoretical and technological developments during the past decades resulted in significant sophistication and power of analysis, display, and interpretation of spatial information applied in landscape analysis. This development, however, remains disconnected from the socio-political realities of the communities and regions which are the subject of these studies. There is a research need to integrate public perceptions and attitudes with the type of information typically found in a landscape assessment. A challenge of GIS is whether or not Cartesian space can be adapted to incorporate a more humanistic sense and understanding of distance, direction, and position.

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3-alkylpyrrole to the fabric surface. Direct applications of a conductive paint to the textile surface eliminate the exposure of the substrate to damaging oxidizing agents which allow the coating of more sensitive and delicate substrates. All textiles produced are tested for abrasion resistance and conductivity. For alkyl polypyrrole coated fabrics, the optimum carbon chain lengths are between n=10 and n=14, which result in optimum values of conductivity and solubility. The darkness of the tone is inversely related to the surface resistivity of the resulting conductive fabric. Therefore, deep black coatings have low resistivity whereas light gray coatings on a white fabric surface have higher surface resistivity. Longer alkyl chains result in higher surface resistivity in fabrics. The conductive coating of poly(3-decanylpyrrole) on the textile surface has a better abrasion resistance compared to that of an unsubstituted polypyrrole coating.

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The 9 Australian Values promoted in the National Framework for Values Education in Australian Schools have been developed with emphasis on valuing cultural and religious diversity, tolerance and inclusion. The document states:

These shared values such as respect and ‘fair go’ are part of Australia’s common democratic way of life, which includes equality, freedom and the rule of law. They reflect our commitment to a multicultural and environmentally sustainable society where all are entitled to justice (DEST, 2005:4).

It would follow that UnAustralian Values of exclusion, ignorance, disrespect and dishonesty, synonymous with a resurgence of narrow nationalism and intolerance for cultural and religious diversity, are in conflict with Australian Values. However many public figures seem to have confused UnAustralian with Australian Values and the socalled ‘Values Debate’ has largely ignored the actual content of the 9 Australian Values promoted in the National Framework for Values Education. Something is amiss in UnAustralia. This paper aims to examine this discrepancy.

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Despite the surge of scholarly interest in terrorism and counter-terrorism in the post-9/11 world, surprisingly little attention has been paid to the role of religious actors (especially faith communities and faith leaders) in combating the threat of terrorism. However, the resurgence of religiosity in contemporary politics should not be viewed as an inherently dangerous force. As Appleby has argued, a new secular-religious model of inter and intra-state diplomacy looms as a development with significant potential to resolve conflict and deny terrorist groups access to communities of support. By drawing on an Australian example, we argue that in societies that have a strong multicultural and multifaith character secular-religious diplomacy pitched at the national and sub-national level can play an important role in the formation of a flexible long-term counterterrorism strategy.

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This paper describes the integration of missing observation data with hidden Markov models to create a framework that is able to segment and classify individual actions from a stream of human motion using an incomplete 3D human pose estimation. Based on this framework, a model is trained to automatically segment and classify an activity sequence into its constituent subactions during inferencing. This is achieved by introducing action labels into the observation vector and setting these labels as missing data during inferencing, thus forcing the system to infer the probability of each action label. Additionally, missing data provides recognition-level support for occlusions and imperfect silhouette segmentation, permitting the use of a fast (real-time) pose estimation that delegates the burden of handling undetected limbs onto the action recognition system. Findings show that the use of missing data to segment activities is an accurate and elegant approach. Furthermore, action recognition can be accurate even when almost half of the pose feature data is missing due to occlusions, since not all of the pose data is important all of the time.

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Segmentation of individual actions from a stream of human motion is an open problem in computer vision. This paper approaches the problem of segmenting higher-level activities into their component sub-actions using Hidden Markov Models modified to handle missing data in the observation vector. By controlling the use of missing data, action labels can be inferred from the observation vector during inferencing, thus performing segmentation and classification simultaneously. The approach is able to segment both prominent and subtle actions, even when subtle actions are grouped together. The advantage of this method over sliding windows and Viterbi state sequence interrogation is that segmentation is performed as a trainable task, and the temporal relationship between actions is encoded in the model and used as evidence for action labelling.

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Colleen Murrell gives a talk for the Reuters Institute seminar series.