1,720,979 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
Brein-Computer Interfaces gebaseerd op Electroencefalografie en Visuele Stimulatie
No full textThis thesis discusses three independent studies on Brain-Computer Interfaces (BCIs) for communication based on electroencephalography (EEG) and visual stimulation. BCIs aim at establishing a direct communication channel between the brain and an external device and are therefore particularly interesting for patients whose motor output channels are severely impaired. The main objective of this doctoral project is to develop BCIs based on visual oddball paradigms (P300 component of the Event-Related Potential ERP) and Steady-State Visually Evoked Potentials (SSVEPs), to assess their performance on both healthy and disabled volunteers and to study possible improvements. The first study (chapter 3) investigated the possibility to use Error-related Potential (ErrP) detection to improve the accuracy of P300-based spelling. When a user attempts to communicate a symbol using a BCI, he/she receives as feedback the symbol being identified as target by the BCI. However BCIs are bound to make mistakes and therefore the provided feedback can either be correct or incorrect. In this chapter, we studied the differences between EEG responses to incorrect feedback (ErrP) and those to correct feedback as well as the possibility to accurately detect those ErrPs in order to improve the BCI performance. The shapes of the EEG responses to both types of feedback are consistent with earlier EEG work on error-related processes in a non-BCI context. We also showed the possibility to accurately classify those two types of EEG responses and suggested an automatic correction strategy based on ErrP detection resulting in an improved BCI performance. However, we also stressed several critical aspects of ErrP detection such as the need to collect a large amount of training data, the importance of minimizing false detection of responses to correct feedback and the minor benefit it yields to subjects that already achieve a high spelling accuracy. In the second study (chapter 4), we investigated the applicability of two BCIs, one based on P300 and another one based on SSVEPs, for mental text spelling on a cohort of patients with Locked-In Syndrome (LIS). In order to be applicable for daily use, these BCI systems need to be not only accurate, but also easy to use by the patient. Their applicability therefore depends not only on the achieved performance but also on the users assessment of the mental workload associated with the BCI task and the overall satisfaction with the BCI system. For this reason, the comparison was done in terms of typing performance, mental workload, and user satisfaction. We observe a better usability of the SSVEP-based BCI compared to the P300-based one for the sessions performed by the tested population of locked-in patients with respect to all criteria considered. Our results suggest the advantage of developing alternative BCIs with respect to the traditional matrix-based P300 speller using different designs and signal modalities such as SSVEPs to build a faster, more accurate, less mentally demanding and moresatisfying BCI by testing both types of BCIs on a convenience sample of LIS patients. In the third study (chapter 5), we investigated the possibility to successfully combine the P300 and SSVEP BCI paradigms in a single hybrid BCI. We hypothesized that such a system would allow to overcome the main limitations of each individual BCI paradigm, so as to be able to operate faster than purely P300-based BCIs and encode more commands than purely SSVEP-based BCIs. We collected and analyzed EEG data in a series of several experiments that allowed us to analyse the interactions between the brain responses of the two paradigms, and explore the possibilities of such a hybrid BCI. We observed that the hybrid stimulation scheme did not impair any of the two types of brain responses and that the latter could be detected as accurately as in their non-hybrid counterparts. We, finally, showed the possibility to detect both types of brain responses simultaneously and discussed the feasibility of such a hybrid BCI and the gain it provides over pure P300- and pure SSVEP-based BCIs in terms of communication rate.status: Publishe
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
- …
