1,720,960 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
Représentations hyperboliques des réseaux de connectivité cérébrale et applications cliniques
No full textThis thesis aims to explore the latent geometric structure of brain connectivity networks, with a particular focus on projections into a hyperbolic space and their applications in clinical neuroscience. The objective of this work is to improve the characterization of connectivity patterns in the brain and to develop tools that enhance our understanding of the impact of neurological disorders on these networks. Brain connectivity networks are generally studied using graph theory, where nodes represent brain regions and edges model connectivity patterns inferred from brain imaging or electrophysiological data. More recently, the integration of these networks into latent geometric spaces has emerged as an approach to reduce their complexity while preserving their structural organization and facilitating statistical analyses of the embedded data. Traditionally, Euclidean projections are used, but recent advances in network science have shown that hyperbolic embeddings are more effective in preserving the topology of certain complex networks, including brain connectivity, particularly by improving the representation of hierarchical structures. While previous research has applied hyperbolic network models to biological and technological networks, their full potential in clinical neuroscience remains largely unexplored. Recent studies have used graph-based methods to diagnose neurological pathologies, assess surgical interventions, and model disease progression. However, the application of hyperbolic embeddings to these problems remains an emerging field. In this thesis, we introduce an innovative approach for analyzing brain connectivity networks through hyperbolic latent space representations, with both methodological and clinical contributions. We develop a framework for assessing connectivity changes using geometric measures in the latent space, introducing perturbation metrics that allow to: quantify network damage and reorganization, identify the most affected brain regions, and study large-scale effects of perturbations on the network. We apply this framework to two clinical case studies. First, we analyze the impact of surgical resection on structural brain networks in patients undergoing temporal lobe epilepsy (TLE) surgery, highlighting both local and global connectivity disruptions and their correlation with surgical outcomes. Second, we identify connectivity alterations in the anatomical and structural networks of patients with Alzheimer's disease, emphasizing key brain regions affected by neurodegeneration. The results obtained support the hypothesis that hyperbolic space provides a relevant representation of brain connectivity. This project contributes to the growing body of evidence suggesting that brain connectivity networks exhibit hierarchical and non-Euclidean properties, making hyperbolic embeddings a valuable tool for clinical neuroscience. By integrating concepts from complex network science, machine learning, and clinical research, this work advances the understanding of the structure and dynamics of the brain and introduces innovative methods for studying neurological diseases.Cette thèse vise à explorer la structure géométrique latente des réseaux de connectivité cérébrale, en mettant particulièrement l'accent sur les projections dans un espace hyperbolique et leurs applications en neurosciences cliniques. L'objectif de ce travail est d'améliorer la caractérisation des motifs de connectivité dans le cerveau et de développer des outils permettant de mieux comprendre l'impact des troubles neurologiques sur ces réseaux. Les réseaux de connectivité cérébrale sont généralement étudiés à l'aide de la théorie des graphes, où les nœuds représentent des régions cérébrales et les arêtes modélisent des schémas de connectivité inférés à partir de données d'imagerie cérébrale ou électrophysiologiques. Plus récemment, l'intégration de ces réseaux dans des espaces géométriques latents a émergé comme une approche permettant de réduire leur complexité tout en préservant leur organisation structurelle et en facilitant les analyses statistiques des données intégrées. Traditionnellement, des projections Euclidiennes sont utilisées, mais des avancées récentes en science des réseaux ont démontré que les plongements hyperboliques sont plus efficaces pour préserver la topologie de certains réseaux complexes, y compris la connectivité cérébrale, en particulier en améliorant la caractérisation des structures hiérarchiques. Alors que des recherches antérieures ont appliqué des modèles de réseaux hyperboliques aux réseaux biologiques et technologiques, leur plein potentiel en neurosciences cliniques reste largement inexploré. Des études récentes ont utilisé des méthodes basées sur les graphes pour diagnostiquer des pathologies neurologiques, évaluer des interventions chirurgicales et modéliser la progression des maladies. Cependant, l'application des plongements hyperboliques à ces problématiques constitue un domaine émergent. Dans cette thèse, nous introduisons une approche novatrice pour analyser les réseaux de connectivité cérébrale à travers des représentations en espace latent hyperbolique, avec des contributions à la fois méthodologiques et cliniques. Nous développons un cadre d'évaluation des changements de connectivité à l'aide de mesures géométriques dans l'espace latent, introduisant des métriques de perturbation permettant de: quantifier les dommages et la réorganisation des réseaux, localiser les régions cérébrales les plus affectées et étudier les effets à grande échelle des perturbations sur le réseau. Nous appliquons ce cadre à deux études de cas cliniques. Premièrement, nous analysons l'impact de la résection chirurgicale sur les réseaux cérébraux structurels chez des patients subissant une chirurgie de l'épilepsie du lobe temporal (ELT), mettant en évidence les perturbations locales et globales de la connectivité ainsi que leur corrélation avec les résultats chirurgicaux. Deuxièmement, nous identifions les altérations de la connectivité dans les réseaux anatomiques et structurels de patients atteints de la maladie d'Alzheimer, en mettant en avant les régions cérébrales clés affectées par la neurodégénérescence. Les résultats obtenus soutiennent l'hypothèse selon laquelle l'espace hyperbolique constitue une représentation pertinente de la connectivité cérébrale. Ce projet contribue à l'ensemble croissant de preuves suggérant que les réseaux de connectivité cérébrale présentent des propriétés hiérarchiques et non-Euclidiennes, faisant des plongements hyperboliques un outil précieux pour les neurosciences cliniques. En intégrant des concepts issus de la science des réseaux complexes, de l'apprentissage automatique et de la recherche clinique, ce travail fait progresser la compréhension de la structure et de la dynamique du cerveau et introduit des méthodes innovantes pour l'étude des maladies neurologiques
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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