1,721,092 research outputs found
Going Beyond Counting First Authors in Author Co-citation Analysis
Get PDFThe 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
Variations on the Author
Get PDF“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
OPTIMIST: Optimised Video Content Delivery Chains over Joint Multi-Access Edge Computing and 5G Radio Network Infrastructures
No full textThe OPTIMIST project is positioned into one of the most challenging and societal impactful innovation paths, by contributing to the design and implementation of a Multi-access Edge Computing-empowered service platform enabling the optimized delivery of the most popular type of traffic in the forthcoming 5G networks: mobile video. Advanced prediction tools (e.g. data analytics), MEC-enabled service provisioning, 5G networking, QoE-driven and model-based service optimization using stochastic modeling and algorithmic optimization, are major components toward a holistic system that combines analytical tools and close-to-market technologies. In addition, despite the considerable amount of valuable academic research conducted in the area of MEC- enabled service provisioning, the vast majority of obtained results remains hardly compatible (in terms of system models and implementation platforms) and are often limited to the scope of academic research with no envisaged market transfer plans. OPTIMIST fosters fruitful collaboration of academia and industry targeting at developing an innovative platform for fully personalized delivery of 5G mobile video content
Appropriate Similarity Measures for Author Cocitation Analysis
Get PDFWe 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
Do European procurement rules generate or prevent crime?
No full textThe purpose of this paper is to explore whether opportunities for fraud and corruption might be reduced or increased by rules governing public procurement. The focus is on specific European legislation – Procurement Directive 2004/18 on the coordination of procedures for the award of contracts for public works, public supply and public services by public bodies within all EU Member States – however similar issues would arise in other jurisdictions. The procurement process is examined in relation to three stages of procedure: preparation of specifications, selection of tenderers, and execution of contracts, within each of which some specific risks (red flags) are identified. Particular risks that may not have been sufficiently addressed, in terms of research or legislation, arise at the first of these stages; accordingly this paper focuses there. Generally, risks are summarised in terms of insider-driven specifications, low visibility of procurement processes, and ample opportunities for renegotiation of terms. Risks may be increased by innovative procurement practices that have the effect of extending the manoeuvring between tenderers and public bodies, such as competitive dialogue. Fraud and corruption risk in public procurement is an area deserving detailed and comparative study, with special attention to the pre-contracting stage. Research on this topic within EU Member States should go hand in hand with enquiry into international procurement, and into the EC's own rules as applied by its institutions and bodies. Practical implications – Suggestions for risk-reduction are put forward in relation to quality standards and pre-award publicity. Originality/value – After some time as the Cinderella of crime policies, large-scale frauds attract greater interest. This paper gives grounds for asking whether, in relation to procurement fraud, a combination of traditional practices and modernisation may outpace anti-fraud measures
Dispelling the Myths Behind First-author Citation Counts
Get PDFWe 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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