1,720,992 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
Simulated particle distributions obtained by various tunes in modern detectors
No full textKako bi se potvrdila odstupanja teorije od mjerenja u eksperimentima u fizici visokih energija, simuliraju se relativistički sudari čestica s pomoću različitih Monte Carlo simulatora koji prate fizikalne zakonitosti kvantne kromodinamike. S obzirom na to da nakon sudara dolazi do mnoštva fizikalnih fenomena koji se ne mogu egzaktno opisati, kvantnodinamičke simulatore potrebno je ugoditi tako da opisuju stvarne podatke izmjerene na detektorima. U okviru ovog rada proučava se utjecaj izbora ugađanja PYTHIA simulatora na svojstva izlaznih čestica u pp sudarima.
Pokazano je kako korištenje različitih prilagodbi utječe na distribucije čestica u dijelu prostora za koji prilagodbe obično nisu rađene. Distribucije se uspoređuju primjenom različitih statističkih testova. Uz analizu distribucija kinematičkih varijabli čestica, napravljena je nezavisna simulacija depozicije energije čestica u detektorima koji odgovaraju stvarnim eksperimentima. Uspoređene su distribucije deponiranih energija u centralnom i forward detektoru.
U zaključku, opazili smo statističke razlike među distribucijama i u centralnom i u forward detektoru te pokazali između kojih ugađanja su razlike najveće. Ustvrdili smo koliko podataka bi trebao prikupiti realni centralni detektor kako bi opazio razlike među simuliranim distribucijama dobivenima s pomoću ugađanja dizajniranih za generiranje podataka u centralnom području.In order to confirm the deviations of theory and measurements in experiments in high-energy physics, relativistic particle collisions are simulated using various Monte Carlo simulators that follow the physical laws of quantum chromodynamics. Considering that after the collision there are many physical phenomena that cannot be described exactly, the quantum dynamic simulator needs to be adjusted so that it describes the real data measured on the detectors. In the framework of this work, the influence of the tuning choice of the PYTHIA simulator on the properties of the exiting particles in pp collisions is studied.
It is shown how the use of different tunes affects the distribution of particles in a part of the space for which adjustments were not usually made. Distributions are compared using various statistical tests. In addition to checking the distributions of particle kinematic variables, an independent simulation of particle energy deposition in detectors corresponding to real experiments was made. The distributions of deposited energies in the central and forward detectors were compared.
In conclusion, we observed statistical differences between the distributions in both the central and forward detectors and showed which tunings had the largest differences. We determined how much data a real central detector would need to collect to detect differences between the simulated distributions obtained using tunings designed to generate data in the central region
Simulated particle distributions obtained by various tunes in modern detectors
No full textKako bi se potvrdila odstupanja teorije od mjerenja u eksperimentima u fizici visokih energija, simuliraju se relativistički sudari čestica s pomoću različitih Monte Carlo simulatora koji prate fizikalne zakonitosti kvantne kromodinamike. S obzirom na to da nakon sudara dolazi do mnoštva fizikalnih fenomena koji se ne mogu egzaktno opisati, kvantnodinamičke simulatore potrebno je ugoditi tako da opisuju stvarne podatke izmjerene na detektorima. U okviru ovog rada proučava se utjecaj izbora ugađanja PYTHIA simulatora na svojstva izlaznih čestica u pp sudarima.
Pokazano je kako korištenje različitih prilagodbi utječe na distribucije čestica u dijelu prostora za koji prilagodbe obično nisu rađene. Distribucije se uspoređuju primjenom različitih statističkih testova. Uz analizu distribucija kinematičkih varijabli čestica, napravljena je nezavisna simulacija depozicije energije čestica u detektorima koji odgovaraju stvarnim eksperimentima. Uspoređene su distribucije deponiranih energija u centralnom i forward detektoru.
U zaključku, opazili smo statističke razlike među distribucijama i u centralnom i u forward detektoru te pokazali između kojih ugađanja su razlike najveće. Ustvrdili smo koliko podataka bi trebao prikupiti realni centralni detektor kako bi opazio razlike među simuliranim distribucijama dobivenima s pomoću ugađanja dizajniranih za generiranje podataka u centralnom području.In order to confirm the deviations of theory and measurements in experiments in high-energy physics, relativistic particle collisions are simulated using various Monte Carlo simulators that follow the physical laws of quantum chromodynamics. Considering that after the collision there are many physical phenomena that cannot be described exactly, the quantum dynamic simulator needs to be adjusted so that it describes the real data measured on the detectors. In the framework of this work, the influence of the tuning choice of the PYTHIA simulator on the properties of the exiting particles in pp collisions is studied.
It is shown how the use of different tunes affects the distribution of particles in a part of the space for which adjustments were not usually made. Distributions are compared using various statistical tests. In addition to checking the distributions of particle kinematic variables, an independent simulation of particle energy deposition in detectors corresponding to real experiments was made. The distributions of deposited energies in the central and forward detectors were compared.
In conclusion, we observed statistical differences between the distributions in both the central and forward detectors and showed which tunings had the largest differences. We determined how much data a real central detector would need to collect to detect differences between the simulated distributions obtained using tunings designed to generate data in the central region
Author-wise bibliometric analysis based on entropy.
No full textAuthor-wise bibliometric analysis based on entropy.</p
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