1,720,995 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
Analyse de champs de température de surface de la mer à partir d'observations satellite multi-sources
Full text linkThis thesis focuses on the analysis of several satellite derived sea surface temperature (SST) datasets from instruments with different spatio-temporal resolution. The objective is to analyse, characterize and exploit SST observations with different spatial resolution and possibly improve our understanding of processes at fine scale (1-50 km). The first two chapters describe the data used in this thesis. The following chapters present three types of analysis. The first one deals with SST spectral analysis and a joint SST/SSH (Sea Surface Height) analysis. Global maps of wavenumber spectral slopes are estimated from two independant datasets and a relationship between spectral slopes and SST variances is highlighted. A good agreement between SSH and SST (from microwave data) wavenumber spectral slopes is shown. Global and seasonnal maps of spatial correlation between SST and SSH are presented and show high correlation coefficients over energetic regions. The analysis presented in chapter 4 concernes the spatial organization of the high resolution detail relative to a lower resolution field and a new reconstruction method is proposed. The last part presents an analysis of the tracer level-set geometry. ¿¿La thèse vise l'analyse de mesures de températures de surface de mer (SST) issues de différents capteurs, de résolutions et principes de mesures différents, embarqués sur différents satellites. L'objectif est d'analyser, caractériser et exploiter l'aspect multi-échelle de la SST observée et essayer de mieux interpréter la dynamique petite échelle (1-50 km). Les deux premiers chapitres présentent les observations utilisées. Les chapitres suivants présentent trois analyses. La première concerne les analyses spectrales de SST et une analyse conjointe de SST et hauteur de mer (SSH). Des cartes globales de pentes spectrales sont estimées à partir de jeux d'observations différents et une relation entre valeurs de pentes et variances de SST est mise en évidence. Un accord entre les valeurs obtenues en SST (à partir des données micro-ondes) et en SSH sur des échelles spatiales communes est montré. L'analyse conjointe SST/SSH présentent des cartes globales et saisonnières des coefficients de corrélation entre SST et SSH montrant de fortes corrélations dans les zones fortement énergétiques. L'analyse présentée au chapitre 4 s'intéresse à la caractérisation de l'organisation du détail haute résolution relativement à la basse résolution. Un jeu de données de SST colocalisées de résolutions spatiales différentes est exploité pour la caractérisation du détail haute résolution et une méthode de reconstruction est proposée. La dernière partie présente une analyse de la géométrie des contours de SST
Introducing the Indian-French TRISHNA mission for high resolution SST observations in coastal ocean and continental waters
No full text22nd GHRSST Science Team meeting (XXII), online, 7-11 June 202
Author-wise bibliometric analysis based on entropy.
No full textAuthor-wise bibliometric analysis based on entropy.</p
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