1,720,969 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
A Similarity Threshold-based Tool for Generating and Assessing Essay Computer-Based Examinations
Get PDFMost computer-based assessments (CBA) employ test generators that produce multiple choice questions usually with our options. The limitations of these types of evaluation are that students can randomly select or guess answers with a 25% chance of choosing the right answer per question. The implication is that there is a one out of four probability that students can pass such examinations without understanding the contents taught in class; without studying for the examination and by just guessing answers. In the light of the foregoing, the effectiveness of multiple choice and objective questions as a tool for evaluating students’ mastery of subjects can be questioned. Unfortunately, most test generators do not have the capability for handling essay-based questions due to the fact that there are no rigid responses to essay examination questions. We attempted to bridge this gap by developing EssayTest - a tool that generates essay based questions and mark essay based examinations. Using JAVA, JDBC, MYSQL and other third party interface design tools, EssayTest employ similarity thresholds to match tokens in the answers supplied by teachers and responses from the students in an essay-based CBA as a way of scoring the examination. Preliminary tests showed very promising results
On the Origins of Advance Fee Fraud Electronic Mails: A Technical Investigation Using Internet Protocol Address Tracers
Get PDFOne issue that is concerning to the web security community is the correct identification of the origins of advance fee fraud mails. This has serious implications for directing concerted efforts towards mitigating the malaise in the right direction. Although previous research (Cuckier et al, 2007, Gbenga, 2007; Igwe, 2007; Progame, 2007) opined that these mails originate mainly from Nigeria and other West African Countries, research is warranted using available tracking tools to validate previously held notions about the issue of advance fee e-fraud mails. We harvested in real-time aggregated advance fraud e-mails over a two year period using the sinkhole aggregation methodology as proposed by Abhinav et al (2008), Using freeware e-mail and internet protocol address tracers, we obtained results that deviates from the generally held believes about the origins of advance fee fraud e-mails. Our findings have implications for research on spam filtering and by extension web security
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
COVID-19 Pandemic and the Small- and Medium-Sized Enterprise: Digital Strategies for Surviving in a Developing Economy
No full textSituation faced: Various restrictions were imposed to curb the spread of COVID-19. The owners of a small- and medium-sized enterprise (SME) in the food sector faced challenges that span from keeping their employees and customers safe, shoring-up cash and liquidity, reorienting operations to navigating complicated government support programs.Action taken: The case SME in Ghana adopted several digital strategies that revolutionized their business model and ensured that revenue came in, keeping the business alive and strong. Some measures included enhanced social media engagements and introducing a mobile application (app) for online ordering of meals and making payments.Results achieved: Adopting and implementing strategies utilizing digital technology brought considerable benefits to the SME even though the initial stages were marred with some challenges. One related organizational challenge was an organizational culture accustomed to manual service delivery procedures, hence hampering the smooth implementation of the digital strategies in the initial stages. But the digital strategies enabled the SME to remain profitable in the face of the challenges the COVID-19 pandemic created.Lessons learned: Adoption of affordable and or low-cost digital tools – rather than buying expensive proprietary software – was one of the most important critical success factors in implementing digital strategies. The willingness of the staff – their desire for change and the cordial relationship among them – was very crucial in innovation implementation. Electronic payment channels such as mobile money services supported the SME’s digital strategies. Also, their collaboration with strategic partners in the downstream supply chain enhanced their operational efficiency
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
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