1,721,326 research outputs found
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe 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
Full text link“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
Full text linkWe 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
Full text linkWe 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
Silicon strip detector system assembly for the ATLAS Inner Tracker upgrade at the LHC
No full textDuring the past 18 months, I worked on the assembly of the strip detector system at Brookhaven National Laboratory for the Inner Tracker (ITk) detector for the planned upgrade of the ATLAS detector for the High Luminosity LHC. The ITk consists of two concentric silicon sub-detectors, the pixel and the strips detectors. The strip detector consists of 4 layers. Each layer consists of electrical modules glued on the local support structures, or . This report will discuss the work I did to assemble the first stave using the new-generation chips, ABC* and HCC*, and to perform the required metrology. I will also discuss the modifications to the engineering drawings for the staves to adhere to expected manufacturing standards
Machine learning techniques for cross-section measurements for the vector-boson fusion production of the Higgs boson in the decay channel with the ATLAS detector
No full textThis article reports on the measurements of the fiducial and differential production cross section of Higgs bosons with an electron, a muon, and two energetic neutrinos from the decay of bosons in the final state. The understanding of the fundamental properties of the Higgs boson is one of the main goals of the physics programme of the Large Hadron Collider. The analysis of 139 fb of proton--proton collision data at a centre-of-mass energy of = 13 TeV recorded by the ATLAS experiment unlocks the study of the Higgs boson’s properties with unprecedented precision. While the first differential and fiducial production cross section measurements had been reported in the diphoton and four-lepton final states, the exploration of secondary production mechanisms in extreme kinematic regions has been heavily anticipated. Cutting-edge machine- learning-based methodologies are exploited for maximising the signal sensitivity while minimising the model- dependency of the results. The results are compared with state-of-the-art theoretical predictions. Furthermore, the measurements are used to constrain the presence of new phenomena in the framework of Effective Field Theories
Higgs differential cross-sections and CP Higgs couplings results with the ATLAS experiment
No full textWith the pp collision dataset collected at 13 TeV, detailed measurements of Higgs boson properties can be performed. The Higgs kinematics and CP properties can be measured with various production and decay modes and interpreted to constrain beyond-the-Standard-Model phenomena. This talk presents the measurements of Higgs boson differential and fiducial cross-sections as well as their combination and interpretations, and limits on the mixing of CP-even and CP-odd Higgs states are set by exploiting the properties of diverse final state
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