1,720,970 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
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
Lower bounds for incidences with hypersurfaces
No full textLower bounds for incidences with hypersurfaces, Discrete Analysis 2016:16, 14pp.
A fundamental result in combinatorial geometry, the Szemerédi-Trotter theorem, states that among any points and lines in there can be at most incidences, where an incidence is a pair that consists of one of the points and one of the lines with the point contained in the line. Simple examples show that this result is best possible. (The interesting case is when and are of roughly comparable size: the terms and in the bound are there to deal with the case when is much bigger than or is much bigger than , when trivial examples are best.)
The Szemerédi-Trotter theorem has been generalized in various ways. To begin with, it holds not just for incidences between points and lines, but also for incidences between points and _pseudolines_: if we define a pseudoline system to be a set of curves in the plane such that no two of them intersect in more than a point, then we can replace "line" by "pseudoline" in the Szemerédi-Trotter theorem, and several of its proofs are almost unaffected.
It is also possible to relax the condition on pseudolines and merely to insist that any two curves intersect in at most points for some fixed : this introduces an extra constant factor into the bound. In particular, this implies that, under appropriate conditions, the Szemerédi-Trotter theorem holds for incidences between points and algebraic curves of bounded degree.
Another direction of generalization is to higher dimensions: for example, one can consider incidences between points and hyperplanes in . Considering the case of planes in , one sees that for an interesting result some kind of non-degeneracy condition is needed, since otherwise one can take a collection of planes that all meet in a line and a collection of points that all lie in that line. The obvious condition is that any three planes from the set meet in at most one point, or for general that any of the hyperplanes meet in at most one point.
Again, we can consider not just affine subspaces. One quite general result, due to Fox, Pach, Sheffer, Suk and Zahl, states that if is a set of points in and is a set of varieties in of dimension at most , and if the incidence graph of points and varieties (defined in an obvious way) contains no copy of the complete bipartite graph -- or equivalently any of the varieties intersect in at most points -- then the number of incidences is at most
for a constant that depends on and only.
The purpose of this paper is to find matching lower bounds for this result and other results of a similar kind, at least in certain situations. In particular, for every the author finds a collection of points and hyperplanes such that the incidence graph contains no copy of and the number of incidences is at least . Here, is in the range for which the dominant term in the upper bound above is the first one, so this construction shows that up to the in the exponent that result is best possible.
Such matching bounds are not very common in the area, and there are still plenty of open problems. For instance, the dependence on is not very well understood: it is conjectured that when there are at least as many points as curves, increasing should not have an effect on the exponent (so the fact that it does in the upper bound stated above would be an artefact of the proof rather than reflecting what is actually going on). [This blog post by the author](https://adamsheffer.wordpress.com/2014/11/25/incidences-lower-bounds-part-5/) discusses an example with that gives a larger exponent than the Szemerédi-Trotter bound for , but nothing better is known when .
[Another blog post of the author](https://adamsheffer.wordpress.com/2016/01/22/incidences-outside-of-discrete-geometry/) discusses applications of incidence problems to several other areas, including harmonic analysis, theoretical computer science, and number theory
Author-wise bibliometric analysis based on entropy.
No full textAuthor-wise bibliometric analysis based on entropy.</p
Author Under Sail The Imagination of Jack London, 1893-1902
No full textIn Author Under Sail, Jay Williams offers the first complete literary biography of Jack London as a professional writer engaged in the labor of writing. It examines the authorial imagination in London's work, the use of imagination in both his fiction and nonfiction, and the ways he defined imagination in the creative process in his business dealings with his publishers, editors, and agents. In this first volume of a two-volume biography, Williams traverses the years 1893 to 1902, from London's "Story of a Typhoon" to The People of the Abyss. The Jack London who emerges in the pages of Author Under Sail is a writer whose partnership with publishers, most notably his productive alliance with George Brett of Macmillan, was one of the most formative in American literary history. London pioneered many author models during the heyday of realism and naturalism, blurring the boundaries of these popular genres by focusing on absorption and theatricality and the representation of the seen and unseen. London created an impassioned, sincere, and extremely personal realism unlike that of other American writers of the time. Author Under Sail is a literary tour de force that reveals the full range of London as writer, creative citizen, and entrepreneur at the same time it sheds light on the maverick side of machine-age literature.Intro -- Title Page -- Copyright Page -- Dedication -- Contents -- Acknowledgments -- Introduction -- 1. Spirit Truth -- 2. From Absorption to Theatricality and Back Again -- 3. "I Will Build a New Present" -- 4. Sons as Authors -- 5. Fathers as Publishers -- 6. The Daughter as Author -- 7. Lovers as Authors -- 8. At Sea with the Family -- 9. Yellow News, Yellow Stories -- 10. The Return Home -- Notes -- Bibliography -- Index -- About Jay WilliamsIn Author Under Sail, Jay Williams offers the first complete literary biography of Jack London as a professional writer engaged in the labor of writing. It examines the authorial imagination in London's work, the use of imagination in both his fiction and nonfiction, and the ways he defined imagination in the creative process in his business dealings with his publishers, editors, and agents. In this first volume of a two-volume biography, Williams traverses the years 1893 to 1902, from London's "Story of a Typhoon" to The People of the Abyss. The Jack London who emerges in the pages of Author Under Sail is a writer whose partnership with publishers, most notably his productive alliance with George Brett of Macmillan, was one of the most formative in American literary history. London pioneered many author models during the heyday of realism and naturalism, blurring the boundaries of these popular genres by focusing on absorption and theatricality and the representation of the seen and unseen. London created an impassioned, sincere, and extremely personal realism unlike that of other American writers of the time. Author Under Sail is a literary tour de force that reveals the full range of London as writer, creative citizen, and entrepreneur at the same time it sheds light on the maverick side of machine-age literature.Description based on publisher supplied metadata and other sources.Electronic reproduction. Ann Arbor, Michigan : ProQuest Ebook Central, YYYY. Available via World Wide Web. Access may be limited to ProQuest Ebook Central affiliated libraries
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