1,721,106 research outputs found

    A Novel Program-Verify Algorithm for Multi-Bit Operation in HfO2 RRAM

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    In this letter, we propose a dispersion-aware program-verify algorithm to enable reliable multi-bit operations in HfO2-based RRAM. The significant intrinsic dispersion of the resistive states, typically hindering multi-bit operations, is exploited to devise a program-verify scheme which enables the multi-bit operations with unique properties of failure resilience and adaptability to degradation. We show that an appropriate choice of the algorithm parameters can minimize the average number of cycles needed to program the cell, enabling fast and reliable multi-bit operation. This maximizes the bit/cell ratio and minimizes the dispersion of targeted resistive states

    Going Beyond Counting First Authors in Author Co-citation Analysis

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    The present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed

    Climate change adaptation and floods: Australia's institutional arrangements. Case Study

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    This case study addresses a ‘threat’ attribute, flood, in terms of each of the seven institutional mechanisms. Flooding is Australia’s most expensive natural hazard and the federal government allocated 5.6 billion in recovery funding to Queensland alone, primarily to restore public infrastructure (BITRE, 2008, Gillard, 2011). Climate change scenarios predict an increase in intensity and frequency of floods, potentially exposing Australia to even greater damages in the future. Floods are thus a key area for improving adaptive capacity. Past research identified inadequacies in institutional and regulatory arrangements, development planning and funding mechanisms (Wenger et al 2013). That research overwhelmingly pointed to the need for improvements in non-structural measures, particularly in the preventative phase of emergency management. It also found that adaptive approaches that are proving successful and cost-effective overseas are largely unknown in Australia, and would have difficulty being implemented under current arrangements. Accordingly, this paper explores flooding from the perspective of government function to determine: • current policies and institutional arrangements in place to address flooding • the types of reforms that would be required to reduce Australia’s vulnerability to flooding in the future. The case study that contributed to a broader climate change adaptation project. The case study used project methodology developed by Karen Hussey, Steve Dovers and Richard Price. Details of the umbrella project are: Hussey, K, Price, R, Pittock, J, Livingstone, J, Dovers, S, Fisher, D & Hatfield-Dodds, S 2013, Statutory frameworks, institutions and policy processes for climate adaptation: Do Australia’s existing statutory frameworks, associated institutions and policy processes support or impede national adaptation planning and practice?, National Climate Change Adaptation Research Facility, Gold Coast, 193 pp. The case study also drew upon work undertaken as part of a second NCCARF project under its synthesis and integrative program (referred to in this paper as the SIRP Report): Wenger, C, Hussey, K & Pittock J 2013, Living with floods: Key lessons from Australia and abroad, National Climate Change Adaptation Research Facility, Gold Coast, 267 pp

    Variations on the Author

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    “Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship

    Appropriate Similarity Measures for Author Cocitation Analysis

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    We provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis

    Dispelling the Myths Behind First-author Citation Counts

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    We conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more sophisticated methods
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