1,720,954 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
Hättest du die Titanic überlebt? Eine kurze Einführung in das Data Mining mit freier Software
Get PDFAm 10. April 1912 ging Elisabeth Walton Allen an Bord der „Titanic“, um ihr Hab und Gut nach England zu holen. Eines Nachts wurde sie von ihrer aufgelösten Tante geweckt, deren Kajüte unter Wasser stand. Wie steht es um Elisabeths Chancen und hätte man selbst das Unglück damals überlebt? Das Titanic-Orakel ist eine algorithmusbasierte App, die entsprechende Prognosen aufstellt und im Rahmen des Kurses „Data Science“ am Department Information der HAW Hamburg entstanden ist. Dieser Beitrag zeigt Schritt für Schritt, wie die App unter Verwendung freier Software entwickelt wurde. Code und Daten werden zur Nachnutzung bereitgestellt
Studentische Inhalte in institutionellen Repositorien : welche Faktoren beeinflussen die Bereitschaft zur Selbstarchivierung?
Get PDFHochschulbibliotheken sehen sich mit geringen Partizipationsraten bei der Produktion von Inhalten für institutionelle Repositorien (IR) konfrontiert. Eine lange vernachlässigte Gruppe potenzieller Stakeholder sind Studierende. In dieser Arbeit wird der Frage nachgegangen, welche Faktoren die Bereitschaft von Studierenden zur Selbstarchivierung in IR beeinflussen. Hierfür wird zunächst eine literaturbasierte empirische Modellierung der studentischen Selbstarchivierungsbereitschaft in Abhängigkeit von Gewinn‑, Kosten- und Kontextfaktoren vorgenommen. Anschließend werden die Hypothesen mittels einer linearen Regressionsanalyse nach der Methode der kleinsten Quadrate empirisch überprüft, indem eine Stichprobe (n=94) der genannten Zielgruppe im Rahmen eines Online-Fragebogens befragt wird. Im Ergebnis werden zwei signifikante Gewinnfaktoren (Streben nach persönlicher Anerkennung sowie das Unterstützen einer Open-Access-Philosophie) und ein signifikanter Kostenfaktor (wahrgenommener Zeit- und Arbeitsaufwand) identifiziert, aus denen Handlungsempfehlungen für Hochschulbibliotheken zur Akquise studentischer Autor:innen abgeleitet werden. Hierzu zählen das Veranstalten von Preisverleihungen und Schulungsformaten, die Ernennung von Verbindungsbibliothekar:innen sowie das Angebot eines Upload-Services.University libraries are confronted with low participation rates in the production of content for institutional repositories (IR). Students are a long-neglected group of potential stakeholders. This paper explores the question of which factors influence students' willingness to self-archive in IRs. To this end, a literature-based empirical modeling of students' willingness to self-archive is carried out as a function of benefit, cost and contextual factors. The hypotheses are then empirically tested by conducting an online survey among the target group (n=94) and applying ordinary least squares linear regression. As a result, two significant benefit factors (personal recognition and supporting a philosophy of open access) and one significant cost factor (perceived time and effort) are identified, from which recommended actions for university libraries to recruit student authors are derived. These include organizing award ceremonies and training formats, appointing liaison librarians and offering an upload service
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
Author-wise bibliometric analysis based on entropy.
No full textAuthor-wise bibliometric analysis based on entropy.</p
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