1,721,071 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
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
Empowering the community or escape daily routine - a voluntourism perspective
Get PDFOn the edges of tourism, volunteering, and travel, we find voluntourism with tourists, mainly from high-income countries, looking for an alternative form of travel that promises sustainable development of destinations. The aim of the paper is to explore voluntourism through motivations and impacts, as well as aggregate different volunteers in categories, in order to better understand this phenomenon. The results of a questionnaire answered by 65 international volunteers show seven motivations and a lack of attention on the local projects. More than half of the volunteers are considered to have short participations in projects, considering the destination as a very important aspect, have minimal skills, and have a passive participation, as a minimal direct contribution. Generically, our research may help to highlight and boost the voluntourism experience, creating positive and transformative changes.Marisa R. Ferreira gratefully acknowledges financial support from FCT - Fundação para a Ciência e Tecnologia (Portugal), national funding through project UIDB/04728/202
Continuous authentication with a focus on explainability
Get PDFTraditional explicit authentication mechanisms, in which the device remains unlocked after the introduction of some kind of password, are slowly being complemented with the so-called implicit or continuous authentication mechanisms. In the latter, the user is constantly monitored in one or more ways, in search for signs of unauthorized access, which may happen if a third party has access to the phone after it has been unlocked. There are some different forms of continuous authentication, some of which based on Machine Learning. These are generally black box models, that provide a decision but not an explanation. In this paper we propose an approach for continuous authentication based on behavioral biometrics, machine learning, and that includes domain-dependent aspects for the user to interpret the actions and decisions of the system. It is non-intrusive, does not require any additional hardware, and can be used continuously to monitor user identity.This work has been supported by national funds through FCT – Fundação
para a Ciência e Tecnologia through project UIDB/04728/2020
Learning inside the box: students' perceptions of emergency remote learning
No full textCOVID-19 has had a considerable impact on learning environments, placing huge challenges on students and teachers. During the pandemic period, academic activities were mainly provided in a remote learning environment. Learning and assessment activities had to be adjusted to remote environments. The present study is particularly focuses on students' perceptions. Namely, it aims to understand the students' perceptions of the learning and assessment activities during the first lockdown due to COVID-19 in a Portuguese Higher Education Institution. Specifically, we aim to understand the difficulties and challenges identified by higher education students related to remote learning environments.
For this qualitative study, we used a semi-structured interview for data collection. Data were collected in September and October 2020. We interviewed 29 students from a Portuguese Higher education institution. Data were analysed according to content analysis procedures. Our results suggest that most students had a positive evaluation of the learning process and assessment during the pandemic. The most positive dimensions were related to their ability to manage their own time and better work/study management. On the other hand, students understood it as a challenge to their ability to maintain focus, be motivated for classes and tasks, and interact with the teacher. These challenges are related to the understanding of less efficient learning.
Therefore, most students were satisfied with the learning and the assessment process during the first lockdown. Furthermore, students identified several positive aspects and challenges related to this period. Higher Education Institutions' decision-makers should consider these results to develop new strategies and models for Higher Education.The work of authors Vanda Lima and Amélia Carvalho is supported by national funds, through the FCT - Portuguese Foundation for Science and Technology under the project UIDB/04728/2020info:eu-repo/semantics/publishedVersio
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