1,721,500 research outputs found
RDF-basierte Integration von E-Learning-Metadaten in einem Informationsportal
No full textIn diesem Beitrag wird beschrieben, in welcher Form E-Learning- Anwendungen durch ein Informationsportal unterstützt werden können. Am Beispiel eines sich in der Entwicklung befindlichen Portals für die Informatik wird zunächst gezeigt, wie Dienstleistungen zum Literaturnachweis und zur Volltextvermittlung sinnvoll in E-Learning-Anwendungen zu integrieren sind. Im Schwerpunkt des Beitrags wird untersucht, wie auch E-Learning-Inhalte in ein entsprechendes Nachweissystem aufgenommen und hiervon ausgehend vermittelt werden können. Die Integration von E-Learning-Inhalten mit Metadaten erfordert eine umfassende Beschreibung der Inhalte, wie sie in diesem Beitrag mit dem IEEE- Standard LOM erreicht wird. Für eine technische Umsetzung des Standards wird das Metamodell RDF vorgeschlagen. Nutzen aus einer Umsetzung von LOM-Metadaten im RDF-Modell können beispielsweise aus einer verbesserten Suche, einer effizienteren Verarbeitung von Informationen zu Lerninhalten und einer höheren Interoperabilität zwischen verschiedenen Anwendungen gezogen werden
Selektionsalgorithmus zur effizienten, kompetenzorientierten Ressourcenallokation in Geschäftsprozessen
No full textDas Management von inner- und überbetrieblichen Geschäftsprozessen ist ein entscheidender Faktor für den Erfolg von Unternehmen. Neben der Modellierung und Analyse dieser Geschäftsprozesse gilt dies in besonderem Maße für deren Ausführung und Überwachung. Aus diesem Grund ist die Festlegung von Zuständigkeiten und benötigten Ressourcen für Teilarbeitsschritte von essentieller Bedeutung. Gängige Ressourcenmodelle erlauben die Auswahl von Ressourcen über Rollenbeschreibungen, während Fähigkeiten und Kompetenzen der Akteure gar nicht oder nur vereinfacht zum Tragen kommen. In diesem Beitrag wird daher ein Verfahren vorgestellt, das die Zuweisung von Ressourcen zu Aufgaben unter Berücksichtigung von Kompetenzen erlaubt. Diese Kombination bietet Mechanismen zu einer effizienteren Auswahl geeigneter Ressourcen, als dies durch einfache Rollenmodelle möglich ist. Im Rahmen eines Fallbeispiels wird schließlich die Praxisrelevanz dieses Ansatzes verdeutlicht, der künftig zur Implementierung erweiterter Schedulingverfahren eingesetzt werden kann
Perceived usefulness of RFID-enabled information services – a systematic approach
Get PDFEven though RFID technology is currently gaining importance mainly in logistics, usage areas, such as shopping or after-sales enhancements beyond the supply chain are envisioned. Yet, while RFID hits the street it is questioned if it may undermine one’s privacy while providing few customer benefits. Meeting this criticism this paper investigates RFID-enabled information services and the drivers of their usefulness for consumers. The article claims that the more risk one associates with a product the more benefit from RFID-enabled information services is perceived. We show empirically that the nature of product risk provides a useful framework to decide on the types of RFID information services a marketer should offer to create RFID usefulness perceptions and increase technology acceptance
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
- …
