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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
TriGraphSlant - benchmark set for writer identification - writers were asked to write in unnatural slant
No full text
Disclaimer and terms of use:
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* This is the TrigraphSlant (Img version) Distribution, release 18/3/2011 * *
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* This distribution contains 188 images of scanned handwritten text, *
* scanned at resolution 300dpi Canon LiDE 25, grey scale, *
* by 47 Dutch writers, four pages per writer, from four *
* writing conditions, one condition per page. The conditions are: *
* 1. [AN] Copy text A in your natural handwriting. *
* 2. [BN] Copy text B in your natural handwriting. *
* 3. [BL] Copy text B and slant your handwriting to the *
* left as much as possible. *
* 4. [BR] Copy text B and slant your handwriting to the *
* right as much as possible. *
* The codes AN, BN, BL and BR refer to subsets into which the collected *
* pages of the writers were subdivided. AN represents a collection of *
* authentic documents; BN, BL and BR can be seen as collections of *
* questioned documents. To avoid structural effects of fatigue, the order *
* of item 3 and 4 was randomized at each collection: half of the subjects *
* wrote the BR page before the BL page. The data were collected at three *
* sites, in three cities: The Hague: NFI (N...), Donders Institute for *
* Brain, Cognition and Behaviour, Radboud University Nijmegen (D...) *
* and the Artificial Intelligence Dept. of University of Groningen (R...) *
* *
* Copyright The International Unipen Foundation, 2010, All rights reserved *
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* *
* *
* DISCLAIMER AND COPYRIGHT NOTICE FOR ALL DATA CONTAINED ON THIS CARRIER: *
* *
* *
* 1) PERMISSION IS HEREBY GRANTED TO USE THE DATA FOR RESEARCH *
* PURPOSES. IT IS NOT ALLOWED TO DISTRIBUTE THIS DATA FOR COMMERCIAL *
* PURPOSES. *
* *
* *
* 2) PROVIDER GIVES NO EXPRESS OR IMPLIED WARRANTY OF ANY KIND AND ANY *
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR PURPOSE ARE *
* DISCLAIMED. *
* *
* 3) PROVIDER SHALL NOT BE LIABLE FOR ANY DIRECT, INDIRECT, SPECIAL, *
* INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF ANY USE OF THIS *
* DATA. *
* *
* 4) THE USER SHOULD REFER TO THE FOLLOWING ARTICLE ON THIS DATA SET: *
* *
* A.A. Brink, R.M.J. Niels, R.A. van Batenburg, C.E. van den Heuvel, *
* L.R.B. Schomaker, Towards robust writer verification by correcting *
* unnatural slant, Pattern Recognition Letters, Volume 32, Issue 3, *
* 1 February 2011, Pages 449-457, ISSN 0167-8655, *
* DOI: 10.1016/j.patrec.2010.10.010. *
* *
* 5) THE RECIPIENT SHOULD REFRAIN FROM PROLIFERATING THE DATA SET TO THIRD *
* PARTIES EXTERNAL TO HIS/HER LOCAL RESEARCH GROUP. PLEASE REFER INTERESTED *
* RESEARCHERS TO HTTP://UNIPEN.ORG FOR OBTAINING THEIR OWN COPY. *
\*****************************************************************************/
Abstract
Towards robust writer verification by correcting unnatural slant
A.A. Brink, , R.M.J. Niels, R.A. van Batenburg, C.E. van den Heuvel,
and L.R.B. Schomaker,
a Institute of Artificial Intelligence and Cognitive Engineering (ALICE),
University of Groningen, P.O. Box 407, 9700 AK Groningen, The Netherlands
b Donders Institute for Brain, Cognition and Behaviour, Radboud University Nijmegen,
P.O. Box 9104, 6500 HE Nijmegen, The Netherlands
c Netherlands Forensic Institute, P.O. Box 24044, 2490 AA Den Haag, The Netherlands
Received 11 September 2009. Available online 30 October 2010.
Slant is a salient feature of Western handwriting and it is considered to be an
important writer-specific feature. In disguised handwriting however, slant is
often modified. It was tested whether slant is indeed an important factor and it
was tested whether the distorting effect of deliberate slant change can be
countered by a simple shear transform. This was done in two off-line writer
verification experiments in image processing conditions of slant elimination and
slant correction. The experiments were performed using three features based on
statistical pattern recognition, including the state-of-the-art features
Fraglets and Hinge. A new public dataset was created and used, containing
natural and slanted handwriting by 47 writers. A striking result is that the
average natural slant value is much less important for biometric systems than is
usually assumed: eliminating slant yields just a 1-5% performance loss. A
second result is that the effects of deliberate slant change cannot be fully
countered by a simple shear transform: it raises performance on the distorted
handwriting from 53-68% to 64-90%, but this is still lower than normal
operation on natural handwriting: 97-100%.
Research highlights
- The value of slant as a writer identification feature has been overrated.
- Deliberate slant change can be partly countered by the shear transform.
- Deliberate slant change introduces non-affine distortions to the handwriting.
- A new dataset of deliberately slanted handwriting was introduced.
Keywords: Handwriting biometrics; Writer verification; Slant; Disguise; Statistical
pattern recognition
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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
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
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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