1,720,958 research outputs found
Going Beyond Counting First Authors in Author Co-citation Analysis
Get PDFThe 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
Invisible communities and their visible cameras: The landscape photography of the Chinese camera club of South Africa
Get PDFVariations on the Author
Get PDF“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
Get PDFWe 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
Reframing Johannesburg’s urban politics through the lens of the Chinese Camera Club of South Africa
Get PDF© 2018, © 2018 Informa UK Limited, trading as Taylor & Francis Group. The Chinese Camera Club of South Africa was formed in 1952 in Johannesburg and was active throughout the 1950s and 1960s. Chinese South Africans were adversely affected by the consolidation of urban racial segregation during apartheid. The Club and its members used the spatial tactic of the photographic outing to disrupt the racialisation of space within Johannesburg, as well as to produce photographs that expressed aspirations that were curtailed by the apartheid system. Photographic outings created temporary zones of autonomy in which photographers could capture subversive and otherwise ephemeral experiences of space. I also examine a photographic exhibition organised by the Chinese Camera Club that formed part of the Johannesburg Festival of 1956. By participating in this celebration of civic pride, the Chinese Camera Club exploited a conspicuous public platform to enhance the visibility and prestige of both themselves and the wider Chinese community within Johannesburg. To paraphrase Stuart Hall, the exhibition contested the relations of difference that were imposed upon club members by racial classification, and replaced exclusionary notions of their difference with relentlessly positive ones. Simultaneously, the exhibition asserted a sense of their belonging to Johannesburg, in spite of their precarious right to reside within it
Minna Keene: a neglected pioneer
Get PDFBorn in Germany in 1861, Minna Keene lived in Cape Town during a prolific phase of her photographic career. Whilst at the Cape (1903-1913), she achieved international acclaim as a pictorialist photographer. Her photographs of South African subject matter were shown at exhibitions across the world. She was quick to recognise opportunities to translate her photographic success into financial profit and was one of very few women to operate a photographic studio in early-twentieth century South Africa. Keene actively circulated reproductions of her photographs as self-published postcards and in popular publications. Through these interventions, she made a substantial contribution to popular visual culture at the Cape and was celebrated by local and international audiences. Despite her pioneering status, she has been overlooked in the existing literature on South African photography, and, although she has received limited attention in Euro-American histories of photography, much remains unknown about her life and work, especially in relation to her time in Cape Town. Drawing on multisited research, I present a biographical account of Keene which analyses the ambivalent gender politics in her photographs as well as her uncritical adoption of colonial categories of race
Minna Keene : a neglected pioneer
Get PDFBorn in Germany in 1861, Minna Keene lived in Cape Town during a prolific phase of her photographic career. Whilst at the Cape (1903-1913), she achieved international acclaim as a pictorialist photographer. Her photographs of South African subject matter were shown at exhibitions across the world. She was quick to recognise opportunities to translate her photographic success into financial profit and was one of very few women to operate a photographic studio in early-twentieth century South Africa. Keene actively circulated reproductions of her photographs as self-published postcards and in popular publications. Through these interventions, she made a substantial contribution to popular visual culture at the Cape and was celebrated by local and international audiences. Despite her pioneering status, she has been overlooked in the existing literature on South African photography, and, although she has received limited attention in Euro-American histories of photography, much remains unknown about her life and work, especially in relation to her time in Cape Town. Drawing on multisited research, I present a biographical account of Keene which analyses the ambivalent gender politics in her photographs as well as her uncritical adoption of colonial categories of race
Dispelling the Myths Behind First-author Citation Counts
Get PDFWe 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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