1,720,957 research outputs found

    Enhancing mobile usability evaluation with context information

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    Usability spielt eine wichtige Rolle in Mobile Computing und ist oft entscheidend für den Erfolg eines mobilen Systems. Da jedoch die Entwicklung brauchbarer mobiler Systeme schwierig ist, sind Tests notwendig um Benutzerfreundlichkeit zu garantieren. Es gibt verschiedene Faktoren welche die Interaktion beeinflussen können und auch die Evaluation mobiler Systeme erschweren. Außer Formfaktor, Bildschirmgröße und Eingabegerät hat vor allem Kontext einen großen Einfluss auf die mobile Interaktion. Mobile Systeme können überall und jederzeit verwendet werden. Da Mobile Computing immer mehr an Bedeutung dazu gewinnt, braucht es neue Usability Methoden, welche den neuen Anforderungen gerecht werden.Usability spielt eine wichtige Rolle in Mobile Computing und ist oft entscheidend für den Erfolg eines mobilen Systems. Da jedoch die Entwicklung brauchbarer mobiler Systeme schwierig ist, sind Tests notwendig um Benutzerfreundlichkeit zu garantieren. Es gibt verschiedene Faktoren welche die Interaktion beeinflussen können und auch die Evaluation mobiler Systeme erschweren. Außer Formfaktor, Bildschirmgröße und Eingabegerät hat vor allem Kontext einen großen Einfluss auf die mobile Interaktion. Mobile Systeme können überall und jederzeit verwendet werden. Da Mobile Computing immer mehr an Bedeutung dazu gewinnt, braucht es neue Usability Methoden, welche den neuen Anforderungen gerecht werden.Context-aware Usability Evaluation ist ein relativ neuer Ansatz für Usability Evaluationen. Dieser Ansatz verwendet Kontext Information im Evaluationsprozess, um bessere Ergebnisse zu erzielen. Studien zeigen, dass Mobile Computing von der zusätzlichen Information profitieren kann.Diese Arbeit behandelt Instrumented Usability Analysis (Crossan, Murray-Smith et al. 2007), welches eine Context-aware Usability Methode ist. Obwohl sich diese Methode noch in einem frühen Entwicklungsstadium befindet, zeigt sie jetzt schon viel versprechende Möglichkeiten.Instrumented Usability Analysis könnte in Zukunft automatisierte Tests von mobilen Systemen ermöglichen.Dadurch, dass Instrumented Usability Analysis recht neu ist, existieren noch kaum geeignete Werkzeuge. Um die Verbreitung dieser Methode voranzutreiben, braucht es Werkzeuge die diese Methode unterstützen.Deswegen wurde EvalTool im Rahmen dieser Thesis entwickelt. EvalTool ist ein Usability Evaluations Werkzeug, welches Kontext Daten darstellen kann. Ziel ist es Usability Evaluationen von mobilen Systemen in kleinen Projekten zu unterstützen.Usability plays an important role in mobile computing and is essential for the success of a mobile system. But developing usable mobile systems is difficult and requires testing to guarantee usability.There are many different factors that influence the interaction and also make the evaluation more complex than for stationary systems. Apart from form factor, screen size or input device, context can have a considerable effect on mobile interaction. Mobile systems can be used on the move, anywhere. Due to the growing importance of mobile computing, new usability methods are needed that satisfy mobile needs.Context-aware usability evaluation is a relatively new approach to usability evaluation. It includes context information in the evaluation process in order to improve results. Studies indicate that the field of mobile computing can benefit from the additional knowledge. This thesis presents Instrumented Usability Analysis (Crossan, Murray-Smith et al.2007), which is a context-aware usability method. Although still experimental it is a promising new technique, which aims to improve future mobile applications. In the future it may even allow automated evaluations of mobile systems.Due to the fact, that Instrumented Usability Analysis is still new, there hardly exist any tools to support it. To get more people interested in this new method, tools are required to help with the evaluation. That is why EvalTool was developed as part of this thesis.EvalTool, is an usability evaluation tool, that takes account of context. Its purpose is to support usability evaluations of mobile systems in small projects.<br /

    Going Beyond Counting First Authors in Author Co-citation Analysis

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    The 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

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    “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

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    We 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

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    We 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

    Author Index

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    koamabayili/VECTRON-author-checklist: VECTRON author checklist

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    We 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 Under Sail The Imagination of Jack London, 1893-1902

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    In 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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