1,721,104 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
Few-to-many communication : Public figures' self-promotion on Twitter through 'joint performances' in small networked constellations
No full textThe purpose of the study is to examine how members of a Twitter elite act together on a raised platform, thus performing “before” their manifold followers/audiences. A discourse study of Swedish public fi gures’ Twitter activities resulted in the identifi cation of three discourse types: expert sessions, professional “backstage” chatting, and exclusive lifestreaming. Altogether, they demonstrate how nationally recognized politicians, journalists, and PR consultants socialize on Twitter in a top-down manner that works against broader participation. This “elite collaborative” tweeting can be conceptualized as a particular mode of mass communication, namely few-to-many.Lo scopo dello studio è quello di analizzare come i membri dell’élite di Twitter operano insieme sulla piattaforma “elevata”, dove si esibiscono “davanti” a un’ampia varietà di followers/pubblico. L’analisi qualitativa discorsiva delle attività dei personaggi pubblici svedesi su Twitter ha portato all’identifi cazione di tre tipi discorsivi: sessioni di esperti, conversazione professionale “dietro le quinte” e rivelazione esclusiva delle esperienze personali (ingl. lifestreaming). Le tipologie menzionate mostrano come i politici, i giornalisti e i consulenti in pubbliche relazioni conosciuti a livello nazionale, socializzano dall’alto verso il basso, il che fa allontanare la partecipazione più ampia. Questa forma di “collaborazione dell’élite” può essere concettualizzata come un modo particolare della comunicazione di massa, ovvero come il modo “da pochi a molti” (ingl. few-to-many).The Journalism-Politics-PR Interplay on Twitter: Hybridized, Cross-Professional Relations on the We
Democracy and Media Transformations in the 21st Century: Analysing Knowledge and Expertise
No full textDispelling 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
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