1,721,080 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
Variations 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
Is there skilled-biased technological change in Italian manufacturing? Evidence from firm-level data
Get PDFThe bulk of the literature on the Skill-Biased Technological Change (SBTC) hypothesis has focused on the US and the UK, while evidence on other countries is ‘mixed’. We use firm-level data to test for the presence of SBTC in Italian manufacturing. The interest stems from the fact that Italy is a “late comer” country, suffers a gap in new technologies and has a ‘rigid’ labour market. We estimate employment-share equations using as a skill-ratio two alternative measures, the ratio between white collars and blue collars (WC/BC) and that between graduates and non-graduates (G/NG). We find an unconventional evidence supporting SBTC. First, with the most traditional indicator (WC/BC), a significant effect of R&D is only found when the latter is disaggregated by destination: SBTC mainly runs via process-oriented R&D. Instead, a significant impact of R&D on the skill-ratio is always uncovered with G/NG. Further disaggregations confirm that the impact of R&D is mainly due to incremental process-oriented activities. These results can be easily reconciled with the structural characteristics of Italian manufacturing, where traditional sectors and small and medium sized firms prevail, innovative activities are mainly incremental and the capacity to absorb skilled labour rather limited.info:eu-repo/semantics/publishe
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
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