1,721,002 research outputs found

    Going Beyond Counting First Authors in Author Co-citation Analysis

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    The 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

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    “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

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    We 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

    Applications of Advanced Analytics to the Promotion of Freemium Goods

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    “Freemium” (Free + Premium) hat sich zu einem führenden Preismodell für digitale Güter entwickelt. Dabei kann die Basisversion eines Produkts, z.B. von Handy-Applikationen (“Apps”), unbegrenzt kostenlos genutzt werden und Firmen bieten Premium-Erweiterungen gegen Bezahlung an. Konsumenten haben in 2018 194 Milliarden mal Apps heruntergeladen und 101 Milliarden US-Dollar für In-App-Einkäufe ausgegeben. Beinahe 80% des Umsatzes auf App-Stores wird dabei durch Handyspiele generiert. 2,4 Milliarden Menschen haben in 2019 Handyspiele gespielt, was der Hälfte aller App-Nutzer im gleichen Zeitraum entspricht. Die Hauptthese dieser Dissertation ist, dass preisreduzierende Sonderangebote von großer Wichtigkeit für das Vermarkten von Freemium-Gütern sind: Obwohl Freemium bereits eine extreme Preis-Reduktion darstellt, indem es ein Produkt Konsumenten kostenlos zum Ausprobieren zur Verfügung stellt, können demnach Firmen durch die Nutzung weiterer Sonderangebotstaktiken höhere Profite generieren. Die Arbeit postuliert weiter (und beweist dies empirisch), dass lange angenommene Risiken in der Nutzung von Sonderangeboten, die vor allem bei klassischen Konsumgütern etabliert wurden, im Freemium-Bereich in dieser Form nicht zutreffen. Diese Perspektive entwickelt und vertieft der Autor über vier individuelle Papiere, die zusammen mit einer einleitenden Zusammenfassung die fünf Kapitel dieser Dissertation ausmachen. Die vorliegende Arbeit ist empirischer Natur und wendet “Advanced Analytics”, insbesondere Feldexperimente und maschinelles Lernen, in Zusammenarbeit mit Firmen an. Als repräsentativer Forschungsgrund dienen dabei Freemium-Handyspiele, in denen Firmen detaillierte Daten über Interaktionen mit Kunden sammeln. Anhand dieser Daten leitet der Autor neue Kenntnisse über Kundenverhalten ab und entwickelt Entscheidungsunterstützungssysteme, die es Firmen ermöglichen, höhere Gewinne beim Verkauf von Freemium-Gütern zu erzielen.“Freemium” (free + premium) has become a workhorse pricing model in the digital economy: A basic version of a product or service, e.g., mobile applications (“apps”), can be used for free in perpetuity and premium upgrades are available against payment of a fee. Consumers downloaded apps 194 billion times in 2018 and spent $101 billion on in-app purchases in the same time period. Accounting for almost 80% of that revenue, gaming in particular has seen an unparalleled expansion of demand. It is estimated that 50% of mobile app users play games regularly and that a global total of 2.4 billion people will play mobile games in 2019. The core thesis of this dissertation is that promotions are essential to the marketing of freemium goods such as mobile apps and games. While freemium already represents a promotional pricing tactic in using a zero price for free sampling, the author conjectures that firms can operate their freemium offerings more profitably by using further promotional tactics, especially targeted and personalized promotions, to sell premium upgrades. The author also argues (and shows) that widespread concerns around the use of promotions, particularly developed in the setting of consumer packaged goods, do not apply in the same way in this setting. This thinking is qualified and developed across four chapters that represent individual papers after providing an introduction to the work in the first chapter. The work is empirical in nature and applies advanced analytics, in particular field experimentation and machine learning, in collaboration with firms. As representative of the freemium app economy, the collaborating firms observe dense user data that enable the author to both derive insights on consumer behavior that extend existing conceptual thinking in the field of marketing and to devise decision support and expert systems that allow firms to operate more profitably in this setting

    Dispelling the Myths Behind First-author Citation Counts

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    We 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

    Author Index

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    koamabayili/VECTRON-author-checklist: VECTRON author checklist

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    We 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

    Author Under Sail The Imagination of Jack London, 1893-1902

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    In 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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