1,721,027 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
Seismic coefficients for pseudo-static analysis of wrap faced geosynthetic reinforced soil walls
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Bed Rock Profile Analysis and Interpretation of Archaeological Features Using GPR at Dholavira
No full textDholavira is one of the five largest Harappan cities located in Khadir Island, district Kachchh, in the state of Gujarat, India. An ancient Harappan city was found there with superbly planned, aesthetic architecture and advanced water management system. A major portion of the city area is unexcavated till today. Therefore, to explore the city more, to decide the excavation strategy of the unexplored areas, it was necessary to conduct non-destructive ground probing survey. Ground Penetrating Radar (GPR) is a non-destructive, geophysical technique, which provides three dimensional image of the subsurface features and depth of such features. Two sites were selected for GPR survey at Dholavira after conducting a through reconnaissance survey to the site. These sites are located at the east of East reservoir and south of Lower Town, respectively. GPR survey was conducted using 200 MHz antenna and GSSI SIR 3000 system. GPR data was processed in conventional software RADAN 7 prior to interpretation. An average velocity of electromagnetic wave in the survey area was estimated as 0.125 m/ns which is later used for time to depth conversion. Low frequency noise and abundance of multiple reflections masked bed rock reflection making the interpretation a challenging task. With appropriate filtering and analysis of data, bed rock profile has been produced of both the surveyed sites. Bed rock in both the sites was found almost flat except some shallow interruptions in the bed rock in Site-1. These interruptions might be produced by nature as no signature of man-made interruptions were noticed. Several linear features were observed in Site-1 and Site-2. Two distinct rubble deposits were observed in Site-1. Archaeological understanding of the observed features has been hypothesized to include existence of water reservoirs, channels, bunds etc in the surveyed areas. GPR survey provided possible features based on interpretation of GPR data but more detailed information about dimension of features was not included in this study due to lack of available techniques
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