1,720,960 research outputs found

    Going Beyond Counting First Authors in Author Co-citation Analysis

    Full text link
    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

    Üçüncü nesil kablosuz çoklu dağıtım servis tanımı keşfi ve iletimi

    No full text
    Kablosuz çoklu dağıtım tek bir kaynaktan, hareketli bir grup alıcıya, veri ve çoklu ortam dağıtımını özellikle telekomünikasyon ve yayımsal dünya aktörleri için mümkün kılan bir teknolojidir. Çoklu dağıtım geçmişte kapsamlı bir şekilde çalışılmasına rağmen, kablolu IP çoklu dağıtım modeli birçok kısıtlamalardan dolayı başarılı olamamıştır. Bu teknolojinin yeni nesil kablosuz sürümü dünyanın her yerinden olağanüstü bir ilgi almıştır. Bu tezde ilk olarak hücresel ve yayımsal dünyada, kablosuz çoklu dağıtımın son teknolojik gelişmelerini ortaya çıkardık. Sonra, UMTS (Universal Mobile Telecommunication System) ağlarda 3. nesil kablosuz çoklu dağıtım mimarilerinden biri olan 3GPP‘nin MBMS (Multimedia Broadcast Multicast Services) teknolojisini güvenilir yükleme üzerinde durarak inceledik. MBMS'in uçtan uca yükleme prototipini geliştirdik. Bu prototipimizi MBMS kalıt yükleme olarak isimlendirdik. Prototipimize aynı zamanda servis keşif mimarisinin bir uygulamasını da ekledik. Prototipi daha da geliştirerek aşağıdaki yenilikleri tezde sunduk. Tez MBMS'te duraksız çoklu ortam için, kalıt yükleme yerine gelişimsel yükleme kullanımının getirdiği kazancı sunar ve bu kazancı attırmak için yeni metotlar önerir. Gelişimsel yükleme ile yükleme işlemi arka planda devam ederken, belli bir bekleme zamanından sonra yüklenebilir çoklu ortam dosyaları duraksız olarak oynatılabilir. Önce verimli bir MBMS kalıt yükleme için parametrelerin en iyilemelerini gösterdik. Sonra bu en iyilemelerin üstüne, MBMS gelişimsel yükleme kullanılarak elde edilen kazancı göstermek için deneysel analizler sunduk. Son olarak gelişimsel yükleme verimliliğini daha da artırmak için, uygulama katmanında “interleaving†mekanizması kullandık. Kalıt Yükleme ile Gelişimsel ve “Interleaved†Yükleme arasında verimlilik kıyaslaması yaptık. Bu çalışma TUBITAK ve Vidiator Technology US firması tarafından EEEAG 104E163 proje numarası altında desteklenmiştir. Wireless Multicasting is a technology that enables data and multimedia services to be delivered from a single source to a group of mobile receivers particularly for the actors in the broadcasting and telecommunication world. Although multicasting has been extensively researched in the past, the wired IP Multicast model has not picked up due to various limitations. The new generation wireless counterpart of this technology is receiving tremendous interest from all over the world. In this work, first we have provided a survey of recent technological improvements for wireless multicasting in both cellular and broadcast world. Then, one of the 3G wireless multicasting architecture, 3GPP's MBMS (Multimedia Broadcast Multicast Services) in UMTS (Universal Mobile Telecommunication System) networks, is investigated with a focus on reliable download mechanism. We have provided an end to end download prototype for MBMS. Our prototype, called MBMS legacy download, also covers an implementation of a Service Discovery Architecture. As a unique contribution the thesis provides the gain of using progressive download instead of legacy download and proposes ways to increase the gain for streamable multimedia files for MBMS. With progressive download, downloadable media can be streamed earlier after some waiting time, while the downloading still continues in the background. First we provide optimizations of the parameters for an efficient MBMS legacy download. Then based on these optimizations, we provide experimental analyses to show the gain in using progressive download in MBMS. Finally in order to further increase the progressive download performance, we apply our application layer interleaving strategy to our MBMS download systems and give a performance comparison of the legacy, interleaved and progressive download delivery. This work has has been fully funded by TUBITAK and Vidiator Technology US under the project EEEAG 104E163

    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 link
    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

    Full text link
    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

    No full text
    Nao informado

    koamabayili/VECTRON-author-checklist: VECTRON author checklist

    No full text
    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

    No full text
    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
    corecore