1,721,898 research outputs found
Going Beyond Counting First Authors in Author Co-citation Analysis
No full textThe 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
No full text“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
No full textWe 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
No full textWe 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
Tarifications dynamiques et efficacité énergétique et environnementale
No full textCahier de recherche EDDEN n° 3/2013L'activation de la demande électrique permet d'atteindre des objectifs d'efficacité énergétique et environnementale grâce à la maîtrise des consommations (ou DSM pour Demand Side Management). De nombreux pilotes menés ces dix dernières années permettent d'avoir une représentation robuste de l'impact des outils d'activation de la demande ; cependant, ces outils doivent être calibrés pour répondre à des enjeux bien identifiés. La présente étude suggère que des modèles différents de DSM soient choisis, selon les spécificités des mix de production des pays ainsi que leur capacité d'échange aux interconnexions. Un modèle est réalisé pour déterminer le niveau de DSM nécessaire pour atteindre les meilleurs bénéfices économiques et environnementaux pour cinq pays interconnectés et aux différents mix de production. Deux hypothèses d'interconnexion, illimitée et réelle, sont retenues et comparées à la situation d'un pays isolé. Dans un tel contexte, l'intégration des énergies intermittentes, la sortie du nucléaire, le niveau de risque de défaillance en pointe et le report des effacements vont être des déterminants majeurs dans l'adoption de mesures et d'outils DSM. Cette étude vise à apporter des recommandations concernant les instruments d'activation de la demande qui maximisent les efficacités énergétiques et environnementales pour les différents cas de pays étudiés. Cinq conclusions majeures sont à retenir de cette étude. Premièrement, les stratégies DSM dépendent fortement des mix de production des pays et ne sont pas automatiquement reproductibles. Deuxièmement, une vision de marché européen parfaitement intégré modifie le niveau d'effort à réaliser pour chaque pays, et demande une concertation et une coordination fortes dans les stratégies nationales de DSM. Troisièmement, la situation d'interconnexions limitées laisse apparaître les stratégies optimales de DSM et d'échange à adopter par chaque pays pour atteindre les objectifs d'efficacité les plus importants. Quatrièmement, il apparaît que l'efficacité augmente avec le niveau d'effort mais à taux décroissant, suggérant une préférence pour les outils DSM simples. Enfin, les résultats des programmes de DSM sont largement dépendants de l'effet de report des consommations, lequel, s'il n'est pas maîtrisé, peut éliminer les bénéfices de l'effacement, particulièrement en situation de parc fortement thermique
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