1,720,981 research outputs found
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
Analysis of complex systems based on the decomposition of G-Nets systems.
No full textQuando especificando, concebendo e analisando sistemas complexos, e necessário adotar uma methodologia composicional ou modular. Esta metodologia deve permitir ao
projetista a habilidade de verificar propriedades locais de módulos ou componentes individuais de um sistema, e também, permitir a verificação do comportamento correto
entre componentes interagindo. A aplicação de redes de Petri para a modelagem e verificação de sistemas, ao nível de especificação e concepção, e bem conhecida. A despeito de poderosos mecanismos de estruturação disponíveis na teoria de redes de Petri, para a construção do modelo de um sistema complexo, o projetista poderá ainda se defrontar com o problema da explosão de estados, quando analisando e verificando grandes sistemas. Neste trabalho introduzimos uma metodologia de analise composicional para um tipo de redes de Petri de alto-nível denominada G-Nets. Ainda mais, tendo em mente o objetivo de aplicar esta metodologia para sistemas atuais, nos abordamos a introdução sistemática de propriedades de tolerância a falhas na concepção de um componente. A aplicação e exemplificação da metodologia introduzida e na concepção de sistemas de software.When specifying, designing and analyzing complex systems, it is necessary to adopt a
modular or compositional methodology. This methodology shall allow the designer the
ability to verify local properties of individual modules or components in the system, and
also shall allow the verification of the correct behavior of interacting components. The
application of Petri nets for the modeling and verification of systems, at specification
and design levels are well know. Despite of powerful structuring mechanisms available
in the Petri nets theory for the construction of the model of complex systems, the designer
is still likely to face the problem of state explosion, when analyzing and verifying
large systems. In this work we introduce a compositional analysis methodology for a
kind of high level Petri nets called G-Nets. Moreover, having in mind the objective
of applying this methodology for actual systems, we also address the systematic introduction
of fault-tolerant properties in the design of a component. The application
and exemplification of the introduced analysis methodology is on the design of software
systems
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
Arcabouço baseado em componentes para o desenvolvimento de interface de usuário de aplicação para smart TV.
No full textO conceito de SmartTV permite a instalação em TVs de aplicativos pelos usuários. Atualmente,
algumas marcas disponibilizam seu próprio conjunto de ferramentas para que os
desenvolvedores criem seus aplicativos e publiquem na respectiva loja. O middleware Ginga foi desenvolvido no país para ser utilizado no Padrão Brasileiro de TV Digital, tornando possívelodesenvolvimentodeaplicativosparapermitirainteratividadeentreTVeusuário.
O Ginga recomenda que seja utilizada a linguagem de programação Lua para desenvolver os aplicativos,em conjunto com a Nested Context Language. Omiddleware especifica uma biblioteca em Lua com módulos utilizados para inserir desenhos na tela e gerenciar eventos
da TV e do controle remoto. Porém,a biblioteca nativa provida pelo middleware é primitiva
para o desenvolvimento de interface de usuário para aplicativos de SmartTV e TV Digital.
Com isso,tal atividade torna-se improdutiva devido à grande quantidade de código,repetição de código e tratamento de eventos. Além disso, o desenvolvedor deve gerenciar a memória e eficiência nos aplicativos. Neste trabalho propõe-se um arcabouço para o desenvolvimento de aplicativos com interface de usuário para melhorar a produtividade dos desenvolvedores
nessa atividade. O arcabouço é baseado em componentes de interface, o que diminui o esforço necessário para a criação de um elemento e facilita o reúso.
Como resultado da solução,
foicriadaabibliotecaLuaSmartGUI,desenvolvidaemLua. Setecomponentespresentesna
solução foram avaliados individualmente. Também foi realizada outra avaliação utilizando
desenvolvedores voluntários para desenvolver uma tela utilizando a solução proposta e a
biblioteca nativa d oGinga. A avaliação mostrou que, apesar de um aumento no uso de memória
de aproximadamente 867%, o uso de LuaSmartGUI mostrou ser aproximadamente
61% mais eficiente e apresentou ganho de 31% na produtividade. Os experimentos mostraram que as meta de produtividade e eficiência foram alcançados, mas é preciso melhorar o gerenciamento de memória da biblioteca para viabilizar seu uso.The concept of SmarTV allows users to install applications on TVs. Nowadays, some TV
brands provide their own toolkits so that developers can create their own applications and
publish in the brand store. Ginga middleware was developed in Brazil to be used in Brazilian Digital TV Standard, making possible the development of applications with interaction
between users and TV. Ginga recommends developers to use the programming language Lua to develop applications, along with the Nested Context Language. The middleware specifies a library in Lua with modules which allow to draw on the screen and to manage TV and remote control events. However, the native library provided by Ginga is primitive for user interface development to SmartTV and Digital TV applications. Consequently, this task becames unproductive due to challenges of handling events, writing very large codes and avoiding code replication. Furthermore, the programmers must deal with memory management and efficiency of the applications. In this work, we propose a framework for applications development with user interface to improve the productivity of developers in this task. The framework is based on interface components, which decreases the necessary effort to create an element and facilitates reusing. As result, the library LuaSmartGUI was developed in Lua. Seven components present in our solution were evaluated. Then, another evaluation was made with volunteers developers using the both approaches: our solution and the native
Ginga library. Our results suggest that, despite the increase of approximately 867% in
memory usage, LuaSmartGUI proved to be approximately 61% more efficient and showed
a gain of about 31% in productivity. The experiments showed that the productivity and efficiency
goals have been met, but it’s necessary to improve the memory management for the
libraryusetobecome viable
Author-wise bibliometric analysis based on entropy.
No full textAuthor-wise bibliometric analysis based on entropy.</p
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