1,720,968 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
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
The Accidental Computer: Polynomial Commitments from Data Availability
Get PDFIn this paper, we show two simple variations of a data availability scheme which enable it to act as a multilinear polynomial commitment scheme over the data in a block. The first variation enables commitments over all of the block\u27s data with zero prover overhead: the data availability construction simply serves both purposes. The second variation allows commitments over subsets of data with nonzero but still concretely small proving costs, since most work is already done during data encoding. This works especially well for blockchains with a high degree of data parallelism, as data-parallel computation is particularly amenable to efficient GKR proofs. Since, in GKR, opening the polynomial commitment contributes significantly to prover costs, our construction enables the prover to reuse work already done by the data availability scheme, reducing—or wholly removing—work associated with the polynomial commitment scheme
Succinct Proofs and Linear Algebra
Get PDFThe intuitions behind succinct proof systems are often difficult to separate from some of the deep cryptographic techniques that are used in their construction. In this paper, we show that, using some simple abstractions, a number of commonly-used tools used in the construction of succinct proof systems may be viewed as basic consequences of linear algebra over finite fields. We introduce notation which considerably simplifies these constructions and slowly build a toolkit of useful techniques that can be combined to create different protocols. We also show a simple \u27probabilistic calculus\u27 which specifies how to combine these tools and bounds on their resulting security. To show the power of these abstractions and toolkit, we give a short proof of the security of the FRI protocol. Along the way, we discuss some natural generalizations of protocols in the literature and propose a conjecture related to proximity testing using linear error-correcting codes that is of independent interest
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
koamabayili/VECTRON-author-checklist: VECTRON author checklist
No full textWe have done our best to complete the author checklist relating to the use of animals in the hut study. Note that the objective for the hut study was to evaluate the IRS treatment applications for residual efficacy against Anopheles mosquitoes, including the local An. coluzzii mosquito population. Cows were only used to attract mosquitoes into the huts and no tests were carried out directly on the cows. The author checklist is intended for use with studies where experiments are carried out on animals, which is why we have had such difficulty in completing this for the hut study, as many of the questions do not relate to how the cows were used
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