1,721,168 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

    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

    A review on computational intelligence for identification of nonlinear dynamical systems

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    This work aims to provide a broad overview of computational techniques belonging to the area of artificial intelligence tailored for identification of nonlinear dynamical systems. Both parametric and nonparametric identification problems are considered. The examined computational intelligence techniques for parametric identification deal with genetic algorithm, particle swarm optimization, and differential evolution. Special attention is paid to the parameters estimation for a rich class of nonlinear dynamical models, including the Bouc–Wen model, chaotic systems, the Jiles–Atherton model, the LuGre model, the Prandtl–Ishlinskii model, the Preisach model, and the Wiener–Hammerstein model. On the other hand, genetic programming and artificial neural networks are discussed for nonparametric identification applications. Once the identification problem is formulated, a detailed illustration of the considered computational intelligence techniques is provided, together with a comprehensive examination of relevant applications in the fields of structural mechanics and engineering. Possible directions for future research are also addressed

    Integration of learning management system with social networking sites / Sami F. A. Abuyousef

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    The purpose of this study is to attain the integration of the LMS with SNS in order to enhance the e-learning process high level of engagement, collaboration and easing the sharing of the educational material by using the advantages and features of SNS, not delivering the content only. Today, SNS has become a phenomenon and it have been accepted by the age group of the students, such as any websites which influencing many aspects of students life that cause a changing in the student behavior and the educational process including the e-learning systems. In this study understanding the attraction of the social networks change the student behavior which certainly affects the viewpoint of the student to the e-learning system because of the rising of the social networks, the current study aimed, [i] to identify the use of the social networking sites in e-learning, [ii] to investigate SNS features and technologies which can be used for sharing educational materials and enhance collaboration to LMS, [iii] develop a prototype presents the integration of LMS with SNS to use its techniques for enhancing the interaction and collaboration. In order to achieve the objectives, literature review shows the uses of social networks in the e-learning field, and how to use its tools for investigating the collaboration in the e-learning system as pros with avoiding the cons of the social networking sites as e-learning systems and in the educational process. Achieving the objectives of the research need a mix method to have the best understanding and increase the quality of the final results with providing more comprehensive understanding of the study. The results have been collected from the survey and interviews showed the acceptance for integrating learning management systems with social networking sites for keeping the learning management systems in the same level of the internet rapid change in techniques evolution. The prototype has been developed as intermediate application using the platform of Facebook API for integrating Moodle learning management system to achieve high level of students‟ engagement in learning management systems by adding more collaboration tools which leads to increase the interaction between the student and the system. The prototype was tested by students, and the results confirmed that integrating LMS with SNS positively affect the goals of this research and enhancing learning management systems the means for achieving the research goals

    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
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