1,721,052 research outputs found
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe 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
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 linkWe 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 linkWe 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
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No full textEste trabalho discute tópicos fundamentais relacionados com a conceituação básica sobre simulação de sistemas discretos e geradores de aplicação. O desenvolvimento de programas de simulação pode consistir em uma tarefa árdua, exigindo conhecimentos não apenas sobre o problema em estudo, como também de técnicas de modelagem, análise e implementação. A utilização de ferramentas capazes de automatizar parte significativa do trabalho envolvido no desenvolvimento de \"software\" apresenta inúmeras vantagens, principalmente em relação aos aspectos de qualidade e produtividade. Com base nos estudos realizados foi desenvolvido um gerador de aplicação para simulação de sistemas discretos, cujo principal atrativo é possibilitar ao usuário o desenvolvimento de programas de simulação sem se preocupar com detalhes da implementação do mesmo.This MSc dissertation discusses the basic concepts and applications of discret systems simulation and applicationgenerator systems. Analysis of many applications fields demonstrates that the development of simulation programs can become a very hard task, requiring the knowledge of both the problem under study and modelling techniques together with skills on implementation and analysis of results.The adºption of tools able to produce software automatically shows many attractions mainly in terms of software productivityand quality. Therefore, this dissertation addresses the development, implementation and validation of an application generator for discret systems simulation programs. This generator allows its users to develop simulationprograms in a transparent fashion; i. e., users do not get envolved with implementation details. The dissertation discusses implementation details for the application generator system and presents several examples of automatically generated simulation programs
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
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No full textEste trabalho apresenta um estudo sobre a viabilidade de utilização do protocolo conservativo CMB para sincronização de simulações distribuídas em diferentes plataformas MIMD com memória distribuída, utilizando granulosidade grossa com poucos processos paralelos. A técnica utilizada para a realização das análises consiste em efetuar coleta de dados na execução da simulação de um grande número de modelos. Para a simulação desses modelos foi desenvolvida, e é apresentada neste trabalho, a extensão funcional ParSMPL, que implementa o protocolo de sincronização CMB. Pode-se subdividir os resultados obtidos com a análise dos dados das simulações em enfoques que apresentam contribuições distintas. O primeiro enfoque avalia como a plataforma adotada e o modelo a ser simulado influenciam no speedup alcançado. Neste caso, define-se quando uma aplicação tem tendência a ser eficiente com o paradigma da simulação distribuída utilizando o protocolo CMB. O segundo enfoque refere-se à necessidade do usuário conhecer a melhor forma de se utilizar a simulação distribuída. A partir das análises realizadas foi estabelecido um conjunto de diretrizes que visam auxiliar o processo de desenvolvimento de uma simulação distribuída conservativa. Com a ajuda dessas diretrizes e a disponibilidade da extensão ParSMPL espera-se auxiliar o usuário a desenvolver aplicações eficientes utilizando o paradigma da simulação distribuída conservativa, sem exigir desse usuário o conhecimento das características e particularidades do protocolo de sincronização utilizadoThis thesis approaches a study about the viability of using the CMB conservative protocol for distributed simulation synchronization on different distributed memory M vID platforms and considering coarse granularity and few parailel processes. The technique used to analyze the results comprises data acquisition during simulation execution for a large number of models. The simulation of these models is performed on a special-built distributed simulation environment (ParSMPL) developed and presented in this work, being a CMB synchronization protocol implementation. The results obtained in this work are split according to different views taking to distinct sets of contributions. The first view evaluates the influence of the model and the execution platform on the speedup reached. In this case it is defined when an application can reach efficiency through the adoption of the distributed simulation paradigm using the CMB protocol. The second view refers to the need of the users knowing the best way to make use of distributed simulation. Thus, following the analysis performed in this thesis, it is established a set of procedures to help in the distributed simulation development process adopting the conservative approach. By following the procedures proposed and using the ParSMPL an user can hope precious help in the development of efficient conservative distributed sirnulation programs, without the need of knowing the features and particularities of the CMB protoco
Author-wise bibliometric analysis based on entropy.
No full textAuthor-wise bibliometric analysis based on entropy.</p
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