1,721,100 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
Coupling of stochastic processes in subRiemannian geometry
No full textDans cette thèse on s’intéresse à l’étude des couplages des mouvements browniens sous-elliptiques sur plusieurs variétés sous-riemaniennes: les groupes de Carnot libres d’ordre 2, incluant le groupe d’Heisenberg, ainsi que les groupes de matrices SU(2) et SL(2, R). Ces derniers peuvent être vus, avec le groupe d’Heisenberg, comme des espaces modèles de courbure constante en géométrie sous-riemanienne. On utilise la décomposition du mouvement brownien sous la forme d’un mouvement brownien sur une variété riemannienne, que nous nommerons bruit directeur, ainsi que d’un processus pouvant s’interpréter comme l’aire balayée par ce bruit directeur. La méthode de couplage utilisée ici consiste alors à définir un couplage pour les bruits directeurs et à en étudier l’effet sur les aires balayées. En s’inspirant de précédents travaux sur le groupe d’Heisenberg on s’intéresse d’abord aux couplages avec succès, c’est à dire les couplages pour lesquels le temps de rencontre entre les processus est fini presque surement. En utilisant la décomposition de Karhunen-Loève pour les ponts browniens, on construit des couplages non co-adaptés avec succès sur SU(2) et sur les groupes de Carnot libres de profondeur 2 sur Rn avec n ≥ 3. Lorsque les processus partent de la même fibre on obtient également un résultat sur SL(2, R). En particulier ces constructions mènent à des estimées du taux de couplage dont on déduit des inégalités pour le semi-groupe de la chaleur et pour les fonctions harmoniques. On propose aussi la construction explicite d’un couplage co-adapté sur SU(2). Enfin, on développe un nouveau modèle de couplage "en un coup" basé sur résolution d’un problème inverse pour obtenir de bonnes estimées de la distance en variation totale entre les lois des processus. Ce travail est effectué sur les groupes de Carnot libres de profondeur 2 et utilise une décomposition du mouvement brownien via les polynômes de Legendre. Il permet aussi d’obtenir des relations similaires à la formule de Bismut-Elworthy-Li pour les gradients de semi-groupes, via l’étude d’un changement de probabilité sur l’espace des vecteurs Gaussiens.This thesis deals with the study of the couplings of subelliptic Brownian motions in several subRiemannian manifolds: the free, step 2 Carnot groups, including the Heisenberg group, as well as the groups of matrices SU(2) et SL(2, R). These last ones can be seen, together with the Heisenberg group, as some model spaces with constant curvature in subRiemannian geometry. We use the decomposition of the Brownian motion as a Brownian motion on a Riemannian manifold, that we will call driving noise, as well as a process that can be interpreted as the area swept by the driving noise. The coupling method used here consists in defining a coupling for the driving noises and then study its impact on the swept areas. Taking inspiration from previous works on the Heisenberg group, we first focus on successful couplings, that is couplings where the processes meet at an almost surely finite time. Using the Karhunen-Loève expansion of the Brownian bridges, we construct successful non co-adapted couplings on SU(2) and on the free step 2 Carnot groups with rank n ≥ 3. When the processes start from the same fiber we also get a result on SL(2, R). In particular we obtain estimates of the coupling rate, leading to gradient inequalities for the heat semi-group and for harmonic functions. We also describe the explicit construction of a co-adapted successful coupling on SU(2). Finally, we develop a new coupling model "in one sweep", which is based on the study of an inverse problem to obtain good estimates of the total variation distance between the laws of the processes. This work is done for any free, step 2 Carnot groups and uses a decomposition of the Brownian motion via the Legendre polynomials. This method also allows us to obtain relations similar to the Bismut-Elworthy-Li formula for the gradient of the semi-group by studying a change of probability on the Gaussian space
Author-wise bibliometric analysis based on entropy.
No full textAuthor-wise bibliometric analysis based on entropy.</p
Author Under Sail The Imagination of Jack London, 1893-1902
No full textIn Author Under Sail, Jay Williams offers the first complete literary biography of Jack London as a professional writer engaged in the labor of writing. It examines the authorial imagination in London's work, the use of imagination in both his fiction and nonfiction, and the ways he defined imagination in the creative process in his business dealings with his publishers, editors, and agents. In this first volume of a two-volume biography, Williams traverses the years 1893 to 1902, from London's "Story of a Typhoon" to The People of the Abyss. The Jack London who emerges in the pages of Author Under Sail is a writer whose partnership with publishers, most notably his productive alliance with George Brett of Macmillan, was one of the most formative in American literary history. London pioneered many author models during the heyday of realism and naturalism, blurring the boundaries of these popular genres by focusing on absorption and theatricality and the representation of the seen and unseen. London created an impassioned, sincere, and extremely personal realism unlike that of other American writers of the time. Author Under Sail is a literary tour de force that reveals the full range of London as writer, creative citizen, and entrepreneur at the same time it sheds light on the maverick side of machine-age literature.Intro -- Title Page -- Copyright Page -- Dedication -- Contents -- Acknowledgments -- Introduction -- 1. Spirit Truth -- 2. From Absorption to Theatricality and Back Again -- 3. "I Will Build a New Present" -- 4. Sons as Authors -- 5. Fathers as Publishers -- 6. The Daughter as Author -- 7. Lovers as Authors -- 8. At Sea with the Family -- 9. Yellow News, Yellow Stories -- 10. The Return Home -- Notes -- Bibliography -- Index -- About Jay WilliamsIn Author Under Sail, Jay Williams offers the first complete literary biography of Jack London as a professional writer engaged in the labor of writing. It examines the authorial imagination in London's work, the use of imagination in both his fiction and nonfiction, and the ways he defined imagination in the creative process in his business dealings with his publishers, editors, and agents. In this first volume of a two-volume biography, Williams traverses the years 1893 to 1902, from London's "Story of a Typhoon" to The People of the Abyss. The Jack London who emerges in the pages of Author Under Sail is a writer whose partnership with publishers, most notably his productive alliance with George Brett of Macmillan, was one of the most formative in American literary history. London pioneered many author models during the heyday of realism and naturalism, blurring the boundaries of these popular genres by focusing on absorption and theatricality and the representation of the seen and unseen. London created an impassioned, sincere, and extremely personal realism unlike that of other American writers of the time. Author Under Sail is a literary tour de force that reveals the full range of London as writer, creative citizen, and entrepreneur at the same time it sheds light on the maverick side of machine-age literature.Description based on publisher supplied metadata and other sources.Electronic reproduction. Ann Arbor, Michigan : ProQuest Ebook Central, YYYY. Available via World Wide Web. Access may be limited to ProQuest Ebook Central affiliated libraries
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