1,720,998 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
An ecological typology of the rivers of New South Wales, Australia
No full textUniversity of Technology, Sydney. Faculty of Science.NO FULL TEXT AVAILABLE. Access is restricted indefinitely. The hardcopy may be available for consultation at the UTS Library.NO FULL TEXT AVAILABLE. Access is restricted indefinitely. ----- There is a need for an ecological classification scheme for rivers to facilitate natural
resource management in New South Wales (NSW). One way of doing this is to define
river types based on reference condition and multi-attribute data from river sites.
322 reference sites were selected across NSW, Australia which has a surface area of
801,428 km² and population of approximately 6.8 million. These were selected to
represent all major river types across the State. Environmental data and
macroinvertebrate samples were collected from all of these sites. In addition, wherever
possible, I compiled likely lists of fish species for each sites from a database containing
records of fish collected from rivers across NSW. I used diatom data from relatively
undisturbed river sites in eastern NSW. I determined multivariate patterns in the abiotic
and biological data using ordination and classification methods and defined river types
for each of these attributes. Then, using classification trees, I identified major thresholds
in elevation and mean annual rainfall. Using these thresholds, together with boundaries
of major river basins, I defined regions for each typology that contained as few river
types as possible. Then I constructed two classification trees for each region for each
typology. One of these trees only used immutable variables: maximum distance from
source, elevation, slope, latitude and mean annual rainfall. The other classification tree
used all variables measured including water quality data, substratum cover and modal
river width.
In all I defined 10 abiotic, 8 macroinvertebrate edge, 5 macroinvertebrate riffle, 6 fish
and 3 diatom river types. I wrote identification keys for all these except for the diatom
river types using the immutable variables.
One of the primary areas of application of the river typologies is in the prioritisation of
rivers for conservation action. I explored this in the Hunter region by mapping the
macroinvertebrate edge and fish river types, calculating the total length of rivers in each
type and determining how much of this was within protected areas. I used this to
determine criteria for prioritisation of land units within the region. I then divided the
region into smaller subcatchments and ranked these subcatchments using the river type
priority criteria. This prioritisation may be used as a factor in region prioritisation for
conservation action alongside assessments of catchment condition, threats, special
ecological values and recovery potential
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
Author-wise bibliometric analysis based on entropy.
No full textAuthor-wise bibliometric analysis based on entropy.</p
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