1,720,978 research outputs found
Il pieno,
No full textRiflessione sugli effetti dell'11 settembre, in particolare sulle credenze e gli schemi mentali che regolano la produzione e la circolazione della cultura
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
Temporal Images: The Anamorphic Game and the Nature of Picture
No full textAnamorphoses are odd and intriguing images. They are fascinating: their pictorial content, albeit foreseen, is at first sight concealed and spectators are invited to solve a riddle, looking for the right vantage point on the depicted scene. And they are odd: anamorphoses are borderline images because they live on the threshold between the capacity spectators have to glimpse what it is concealed by the painting and the failure of their efforts, ending up in the perception of an intricacy of lines and unfamiliar shapes. Like pictures in trompe-l’oeil, which play on the divide between image and reality, anamorphoses are jokes between sign and design, between what the spectator grasps at first sight—some irregular shapes floating on the background—and what she succeeds in perceiving after a while by moving back and forth in front of the canvas. Anamorphoses belong therefore to the family of tricks: the point of their perception is the moment in which spectators seize what is hidden under the intricacy of the lines they are looking at and enjoy working out the puzzle by which they had been fooled
- …
