1,720,964 research outputs found

    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

    User behavior prediction using the online behavior log analysis

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    학위논문 (석사)-- 서울대학교 대학원 : 전기·컴퓨터공학부, 2015. 2. 권태경.구매와 관련된 온라인 쇼핑 사용자의 행동은 많은 연구자들이 관심을 가지고 있는 분야이다. 이 논문에서는 온라인 쇼핑 사용자의 행동을 이해하기 위해 쇼핑 사이트에 대한 웹 클라이언트의 접근 기록을 분석하였다. 접근 기록은 50만 개 이상의 클라이언트에 대한 기록을 가지고 있으며, 접근 물품 종류는 180만개에 달하는 큰 규모이다. 이 기록을 분석하여 기본적인 매출 및 아이템 조회의 규모, 하루 중 시간에 따른 매출 등의 결과를 알아 내었다. 그리고 구매에 영향을 미치는 사용자의 행동 요인을 알아 보기 위해 가지고 있는 접근 기록을 재가공하여 사용자-제품 조합을 키로 하여 조회 횟수, 장바구니 사용 유무, 구매 고려 시간 및 최종으로 구매하였는지 등의 정보를 알아내었다. 이 작업을 통해 새로 제작된 데이터를 통해 각 요인에 변화에 따른 제품 구매율의 변화를 분석하였다. 분석 결과, 제품 페이지 확인 횟수, 최초 제품 확인 후 구매 고려 시간의 경우 특정 시점까지는 구매율이 양의 상관관계로 증가한다. 장바구니의 경우 사용하는 경우가 사용하지 않는 경우에 비해 10배 이상 구매자 비율이 높으며 장바구니에 제품을 추가한 시점의 경우 제품 확인 초기일 경우 구매율이 낮으며 후반부일수록 구매율이 상승한다. 이렇게 구매율과 관련된 분석 결과 연관이 있는 항목을 이용하여 머신 러닝을 수행한다. SVM을 이용하여 구매 예측을 수행해 본 결과 아이템의 가격, 판매 횟수 등의 아이템자체의 특성과 관련 있는 피처들을 이용한 경우보다 사용자가 아이템 정보를 확인한 횟수, 최초 확인 후 구매 고려 시간, 장바구니 추가 시점 등의 사용자의 행동과 관련된 피처들을 이용한 경우가 보다 높은 80%에 다다른 정확도를 나타내었다. 그리고 전체 피처를 이용한 경우의 정확도도 행동 피처를 이용한 경우와 다르지 않아, 행동 피처를 이용하는 것이 보다 효율적인 수행이 가능함을 보인다. 이 논문을 통해, 시간에 따라 저장된 데이터를 목적에 맞는 사용자-제품 기준으로 가공하는 방법을 알 수 있다. 그리고 사용자의 행동에 따른 구매율 변화 분석을 통해 행동에 따라 구매율이 어떻게 변화할 것인지 예측할 수 있다. 마지막으로 사용자의 행동이 사용자의 구매 여부 예측에 효율적인 요소임을 시험 결과를 통해 증명한다.제 1 장 서론 7 제 2 장 데이터 수집 및 처리 11 제 1 절 데이터 수집 11 제 2 절 데이터 처리 15 제 3 장 사용자 구매 행동 분석 20 제 1 절 사이트 내 제품 인기도 20 제 2 절 제품 탐색 및 구매 시각 22 제 3 절 제품 정보 확인 행동 패턴 23 제 4 절 구매 결정 소요 시간 27 제 5 절 장바구니 이용 행동 30 제 4 장 사용자 구매 예측 35 제 1 절 시험 방법 35 제 2 절 구매 예측 결과 37 제 5 장 결론 39 참고문헌 40Maste

    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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    Nao informado

    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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