967 resultados para 080109 Pattern Recognition and Data Mining


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Current scientific applications are often structured as workflows and rely on workflow systems to compile abstract experiment designs into enactable workflows that utilise the best available resources. The automation of this step and of the workflow enactment, hides the details of how results have been produced. Knowing how compilation and enactment occurred allows results to be reconnected with the experiment design. We investigate how provenance helps scientists to connect their results with the actual execution that took place, their original experiment and its inputs and parameters.

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As part of a larger Simplification Project for program quality assurance processes conducted at RMIT University, this paper chronicles the refinement of one aspect: program assessment and reporting. This involved the realignment of criteria used in program quality assurance with those developed in higher-level strategic and business planning processes. In addition, the project attempted to address the lack of alignment between annual program processes and subsequent decisions made about the future of programs, particularly in profile planning processes.
A revised Program Annual Report process was developed that aimed to achieve simplicity and alignment while re-engaging program leaders and heads of schools with the quality agenda. A concerted effort was made to develop a process that improved on previously poor vertical communication inherent in program quality assurance. This paper explores the ways in which this was achieved by a) linking people to data through the use of agreed and contextualised performance indicators, and b) linking people to process through more meaningful input into planning and opportunity for dialogue.

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Three conformationally preorganised host molecules based on the [3]polynorbornyl framework and incorporating di-urea receptors were synthesised and their interaction with a series of anions investigated by 1H NMR spectroscopy. A high affinity of each host molecule for dihydrogenphosphate (H2PO4–) and dihydrogenpyrophosphate (H2P2O72–) was identified. In addition to binding to the urea receptors of the host molecules, evidence for an interaction involving the non-polar C–H groups within the binding cavity of the framework and guest anions was also discovered. Furthermore, an unusual 2 : 1 host-to-anion stoichiometry was indicated when binding H2P2O72–, and a model for the anion-mediated self-assembly of this complex species is proposed.

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Objective: To highlight the importance of sampling and data collection  processes in qualitative interview studies, and to discuss the contribution of  these processes to determining the strength of the evidence generated and  thereby to decisions for public health practice and policy.

Approach:
This discussion is informed by a hierarchy-of-evidence-for-practice  model. The paper provides succinct guidelines for key sampling and data  collection considerations in qualitative research involving interview studies. The  importance of allowing time for immersion in a given community to become  familiar with the context and population is discussed, as well as the practical  constraints that sometimes operate against this stage. The role of theory in  guiding sample selection is discussed both in terms of identifying likely sources  of rich data and in understanding the issues emerging from the data. It is noted  that sampling further assists in confirming the developing evidence and also  illuminates data that does not seem to fit. The importance of reporting sampling  and data collection processes is highlighted clearly to enable others to assess  both the strength of the evidence and the broader applications of the findings.

Conclusion:
Sampling and data collection processes are critical to determining  the quality of a study and the generalisability of the findings. We argue that  these processes should operate within the parameters of the research goal, be  guided by emerging theoretical considerations, cover a range of relevant   participant perspectives, and be clearly outlined in research reports with an  explanation of any research limitations.

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There are practical initiatives which can be taken by university management to move institutions forward by engaging a broad range of staff and in cultivating leadership capabilities in teaching and learning. These initiatives are considered in terms of 12 ‘levers of engagement’ currently being implemented in our university, and shown below. Deakin, as a major flexible education provider, is used as an institutional case study of the role of technology in supporting organisational change in higher education. Many of the levers of engagement are evident in other Australian universities.

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This review article focuses primarily on the work carried in our laboratories over the last few years using luminescent and colorimetric sensors, where the anion recognition occurs through hydrogen bonding in organic or aqueous solvents. This review begins with the story of the discovery of fluorescent photoinduced electron transfer (PET) sensors for anions using charged neutral urea or thiourea receptors where both fluorescent and NMR spectroscopic methods monitored anion recognition. This work led to the development of dual luminescent and colorimetric anion sensors based on the use of the ICT based naphthalimide chromophore, where ions such as fluoride gave rise to changes in both the fluorescence and the absorption spectra of the sensors, but at different concentrations. Here, the former changes were due to hydrogen bonding interactions, whereas the latter was due to the deprotonation of acidic protons, giving rise to the formation of the bifluoride anion (HF2−). Modification of the 4-amino-l,8-naphthalimide moiety has facilitated the formation of colorimetric anion sensors that work both in organic or aqueous solutions. Such charge neutral receptor motifs have also been incorporated into organic scaffolds with norbomyl and calixarene backbones, which have enabled us to produce anion directed self-assembled structures.

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Globalization and language reform is often presented as a set of practices and relationships to which educators must adapt in order to 'compete‘ or maintain 'relevance‘ in contemporary society. Presented in such a way neo-liberal versions of globalization and educational reform situate localized culture often as a kind of impediment, something we must overcome or ameliorate in order for progress to be sustained and maintained. In Malaysia, these kinds of discourses inform public policy debates. From debates over university competitiveness through to arguments over language and literacy in a global world, the pressures on Malaysian educators to change their practices and reform are often presented with an implicit assumption that local culture is somehow in deficit.

The argument of this paper challenges this framing and representation of globalization. I present an alternative theoretical framework through which educators can judge their practices within the discourse of globalization. I will demonstrate how respecting difference and culture is framing globalization as mutual respect and recognition rather than imposed change is critical to addressing the language and culture of globalization and education. In this sense, debates about language (understood here in the broadest sense as how we communicate and in what power discourse we communicate within) and culture are ultimately arguments about recognition and respect. Neo liberal politics as an expression of an increasingly authoritarian discourse of globalization needs to be challenged by a politics and practice of cultural recognition and respect.

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The thesis examines Honneth's claim that forms of misrecognition cause undue suffering and considers the extent to which we are vulnerable to and independent of misrecognition. It formulates a sixfold classification of our responses to misrecognition - stoicism, withdrawal, conformity, reification, deconstruction, and humanism, - and thereby an alternative ethics of recognition.