1,721,116 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
Dialectometrische verkenningen van het taallandschap in Fryslân
No full textThe linguistic landscape in the province of Friesland is characterized by a rich diversity of language varieties: Frisian, peripheral Frisian, Frisian-Dutch contact varieties, and Low Saxon. There is often consensus about this in the literature. Within Frisian, a distinction is again made between Clay Frisian, Wood Frisian and Southwest Frisian. However, there is no consensus about an area in the northeast of the province that is referred to as North clay Frisian: does this belong to Clay Frisian, Wood Frisian, or is it an area in itself? In the 1980s Klaas van der Veen published a dialectometric study. Based on high-frequency words from various sources, he calculated distances between local Frisian varieties using Jean Séguy\u27s method. He weighted the words he used by their frequency of use. Based on the distances, he made a classification of the Frisian dialects and found that North Clay Frisian belongs to Clay Frisian. We compared his analysis with two of our own analyses. In the first analysis we measured lexical distances using Jean Ségey\u27s method as well, and in the second analysis we measured distances in the sound components using PMI Levenshtein distance. Our measurements were based on a random selection of words from the texts in the Reeks Nederlandse Dialectatlassen (RND). The well-known threefold division within Frisian was not found on the basis of the lexical measurements, but on the basis of the distances in the sound components we did find this division, and with North Clay Frisian forming a group with Wood Frisian. The differences between our results and Van der Veen\u27s results are mainly determined by the choice of sources (a mix of different sources versus only the RND) and the choice of words (only high-frequency words versus a random selection from a fairly representative text)
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
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