1,722,843 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
Accordo e Disaccordo
No full textDa ormai più di 50 anni la teoria dell’argomentazione ha acquisito un ruolo centrale nell’ambito della riflessione filosofico-linguistica. A far data dal 1958, anno in cui escono in contemporanea ma in maniera del tutto indipendente, il Trattato dell’argomentazione di Perelman ed Olbrechts-Tyteca e Gli usi dell’argomentazione di S. Toulmin si è assistito, infatti, ad una serrata rivalutazione di una logica del ragionamento che, in opposizione alla logica dimostrativa di matrice cartesiana, recupera la centralità delle nozioni di efficacia, di probabile, di uditorio. Una logica doxastica, dunque, che, per riprendere la terminologia impiegata da Aristotele, si applica a ciò che, essendo vero o falso, può essere diversamente da come è. Si tratta, a ben vedere, di un ambito di applicazione molto ampio che finisce per ricomprendere la maggior parte delle pratiche che danno senso alla vita dell’uomo ed alla comunità linguistica di cui è membro
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
Mediologia. Una disciplina attraverso i suoi classici
No full textDesde hace tiempo se oye hablar de mediología y de perspectivas mediológicas para el estudio de la realidad. Pero ¿qué es la mediología? ¿Cuáles son sus clásicos? ¿Cuáles son las herramientas y las referencias compartidas para los estudiosos del campo? Con el fin de responder a estas cuestiones, diecinueve estudiosos de media y comunicación reseñan otros tantos clásicos del pensamiento mediológico. Simmel, Luckàcs, Warburg, Arnheim, Benjamin, Horkheimer y Adorno, Innis, Katz y Lazarsfeld, Barthes, Heidegger, Habermas, McLuhan, Morin, Havelock, Baudrillard, Williams, Meyrowitz son autores de distinta proveniencia cuyas obras forman aquí un canon de la mediología, disciplina que entiende los media como territorio de observación privilegiado para el estudio de la sociedad y de sus mutaciones. Introducidos por fichas sintéticas de presentación, una serie de textos clásicos son reseñados “como si se publicasen hoy”, confrontados con problemáticas actuales y puestos en diálogo con la bibliografía y las teorías contemporáneas. De este modo, por ejemplo, las investigaciones clásicas sobre la influencia personal se revelan claves para la comprensión del pasapalabra en la red, Benjamin nos habla de las prácticas del remixing digital, el Atlas de Warburg nos ayuda a entender el funcionamiento de las imágenes contemporáneas. Integrando las perspectivas de investigaciones tradicionales con las más recientes, el volumen proporciona una “caja de herramientas” mediológica básica y recoge un abanico de instrumentos de trabajo útil para quien desee estudiar y razonar sobre media y comunicación
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