1,720,979 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
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
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
FROM THE PROFANE TO THE SECULAR: IDENTIFYING ANCIENT MAYA ARCHITECTURAL SPACE AT PACBITUN, BELIZE
No full textInvestigations in Plazas A and B of the site core at Pacbitun indicate that initial occupation began in the early Middle Preclassic period (900–600 BC). At this time, a small agricultural community was established in Plaza B beginning with a few domestic structures built just above bedrock. These early domiciles would also function as workshops for the production of marine shell beads. During the late Middle Preclassic (600-300 BC), the size of the community in Plaza B expanded five-fold, with rectangular-shaped platforms replacing the early apsidal structures and the shell bead industry intensifying significantly. It is during this period that two large ceremonial platforms were erected at the site. In Plaza B, to the south of the domestic structures, a large round platform was constructed in the center of what would become Courtyard 2. In Plaza A, a large rectangular platform was built on the highest point of the site. While these buildings represent the first two monumental constructions at Pacbitun, their unique physical and spatial attributes say much about their distinct identities as they relate to each another and to the domestic structures of Plaza B. The purpose of this presentation is to detail these distinct identities and discuss what each might tell us about the residents living and working in Plaza B. Comparative data from other sites will be utilized to see how Pacbitun fits within the broader period sphere sweeping across the lowlands at this time
BURIED BENEATH OUR FEET: EARLY MAYA ARCHITECTURE UNDER THE MAIN PLAZAS AT THE ANCIENT MAYA SITE OF PACBITUN, BELIZE
No full textOver the past 75 years archaeologists have realized the benefits of investigating early Maya communities beneath plaza surfaces. Sites like Barton Ramie, Cahal Pech, Caracol, Ceibal, Colha, Cuello, Tikal, and Uaxactun have produced a wealth of information on Preclassic buildings, burials, and caches. In the Belize Valley there has been a concerted effort since the late 1980s to recover as much information as possible about the Middle Preclassic (900-300 BC) Maya by targeting plazas. This approach has been very effective at Pacbitun where we have uncovered new information on the earliest community located within the two main plazas. This paper reports on recent investigations in Plazas A and B and provides new information on the earliest houses and ceremonial constructions that may be compared with other sites in the region to identify general patterns in Middle Preclassic Maya development
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