1,721,065 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

    Tutela dei diritti delle donne e ruolo dei social media. Voci dall’Iran

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    I social media possono rappresentare un’importante forza di opposizione a quei valori culturali tradizionali e a quella rappresentazione della donna nei media di massa, spesso basata su preconcetti e pregiudizi legati a modelli e ruoli della condizione femminile, che hanno permesso e permettono ancora il radicarsi e l’esistenza stessa delle diverse forme di violenza contro la donna (domestica, emotiva-psicologica, sessuale, economica, socio-culturale). Il contrasto alla violenza di genere e la tutela dei diritti delle donne sono tra le azioni su cui si sta concentrando l’attenzione della social-mobile network society. Si tratta di una lotta che si sviluppa su una forte convergenza etica, morale e politica, la cui connotazione, specificamente comunicativa, è pensata per divenire fenomeno diffuso, virale, impattante e immediato. Fondamentale, per comprendere queste dinamiche, è la stretta correlazione fra la comunicazione, il suo sviluppo mediale e l'evoluzione dell'idea di sfera pubblica1 e spazio pubblico2, che rendono sempre più labile il confine fra impegno online e impegno offline nelle diverse pratiche di cittadinanza e partecipazione. In questo contributo si è cercato di studiare i movimenti sociali e le pratiche di attivismo civico nati a tutela dei diritti delle donne iraniane, in particolare il movimento “Donna, Vita, Libertà”, nato dopo la morte di Jina Mahsa Amini, e “My stealthy freedom”, contro il velo, hijab, obbligatorio. L’analisi di casi proposta, che guarda all’attivismo digitale per promuovere l’azione collettiva nel contesto più generale della Gender Based Violence, ha messo in evidenza come le figure pubbliche abbiano svolto e svolgano un ruolo fondamentale nell’incoraggiare le persone a prendere posizione contro situazioni ritenute ingiuste, lasciando intravedere alcune caratteristiche riferibili al fenomeno dell’influ-attivismo

    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
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