1,721,016 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
Semantically-Oriented Vowel Reduction in an Amazonian Language
Full text linkWhile it is an interesting phenomenon, semantically-oriented vowel reduction has only been demonstrated in studies with English-speaking participants. The primary objective of the current endeavor is to establish whether or not there is cross-linguistic evidence for semantically-oriented vowel reduction. In order to do so, we will consider some recently-collected data from Karitiâna (K henceforth). K is a Tupí language spoken in southwestern Amazonia. It is a natural subject for the current study since the author regularly conducts phonetic research on the language, and since there are a number of recent phonetic studies available in the literature on the language (Everett in press a, 2008a, inter alia). An ancillary objective for this study is to contribute to the growing acoustic-phonetic literature on the language and on Amazonian languages more generally (see discussion in Everett in press b)
Dispelling the Myths Behind First-author Citation Counts
Full text linkWe 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
koamabayili/VECTRON-author-checklist: VECTRON author checklist
No full textWe have done our best to complete the author checklist relating to the use of animals in the hut study. Note that the objective for the hut study was to evaluate the IRS treatment applications for residual efficacy against Anopheles mosquitoes, including the local An. coluzzii mosquito population. Cows were only used to attract mosquitoes into the huts and no tests were carried out directly on the cows. The author checklist is intended for use with studies where experiments are carried out on animals, which is why we have had such difficulty in completing this for the hut study, as many of the questions do not relate to how the cows were used
Locus Equation Analysis as a Tool for Linguistic Fieldwork
Full text linkLocus equations are linear regressions based on F2 formant transitions from vowel onsets to vowel midpoints. The F2 value of the onset of a given vowel can be plotted on the y-axis, with the F2 for the vowel’s midpoint plotted on the x-axis. Locus equations are derived from numerous F2 onset-F2 midpoint plots of this type. Each locus equation is associated with a particular consonant, which precedes the particular vowel tokens plotted according to F2 transition. Locus equations provide data on the patterns of CV coarticulation characterizing particular consonants. Studies in laboratory settings have demonstrated the efficacy of locus equation analysis for exploring such coarticulation patterns. However, locus equation analysis has generally not been exploited as a tool for linguistic fieldwork. This study presents an exception, as the author presents various locus equations based on data from Karitiâna, an endangered Amazonian language. These equations, based on acoustic data gathered in the field, reveal language-specific patterns of coarticulation. The results suggest that, even in remote non-laboratory settings, locus equations can be applied in a straightforward manner in order to provide useful insights into a language’s sound system.National Foreign Language Resource Cente
The Temporal Indeterminacy of Nasal Gestures in Karitiana
Full text linkIn Karitiana, word-medial nasals occurring between oral vowels may surface as circum-oralized, post-oralized, or completely oralized consonants. For example, the word for ‘thing’ may surface as [ki.\u27dnda], [ki~.\u27nda], or [ki.\u27da]. Interestingly, this surface variation of Karitiana nasals is due to the temporal indeterminacy of nasal gestures in the language, i.e. the duration of velic aperture varies significantly across tokens. This sort of temporal indeterminacy has not been documented for any language in the literature, and similar surface variation of nasal forms in other languages has been shown to result from asynchrony between velic oscillation and oral occlusion. The author provides acoustic data that illustrate clearly the temporal indeterminacy in question. These data were recently recorded and analyzed in the field, and demonstrate conclusively that velic aperture duration is far from constant in the language. This fact contravenes expectations based on the literature, and it remains to be seen if and how it will be handled by contemporary phonological models
- …
