1,720,983 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
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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Design and Mitigation of Vehicular Botnets in Vehicular Ad Hoc Networks
Full text linkImproving traffic safety is considered as one of the most important tasks by many countries, and current solutions are not very effective due to the human factor. There are 30,000 deaths and 2.2 million injuries caused by car accidents each year just in the US alone. Many of these accidents are due to the lack of sufficient traffic information and slow driver reaction. Vehicular ad hoc networks (VANETs) is a peer-to-peer communication protocol designed to improve traffic safety. In order to achieve this, cars communicate with each other over a wireless channel exchanging information such as their current speeds, locations, heading angles, brake system statuses, etc. VANETs help collect traffic information more accurately and from a much wider area than drivers. Autonomous driving eliminates the human factor, which will prevent traffic accidents more effectively. Autonomous vehicles are expected to be on the market in 2020. VANET will be used by these cars since it decreases the dependency on expensive sensors, thus making the deployment of autonomous vehicles easier and faster. The accurate traffic information collected using VANETs from a wide area will provide highly effective collision avoidance tools in these autonomous vehicles. However, these benefits are counterbalanced by possible security attacks. Researchers showed that computers inside these vehicles can be compromised; as a result, attackers can take full control of them. Similar to Internet botnets, we can expect that attackers will organize these vehicles into vehicular botnets. We demonstrate the particular dangers of this threat by designing vehicular botnets that consist of these compromised autonomous cars. Existing research into security problems with autonomous vehicles cannot properly cope with our vehicular botnets since they fail to consider the possibility of cooperative malicious cars.This dissertation investigates the potential uses of vehicular botnets, how they can be organized and controlled, and how we might detect and defend against them. We discuss how an attacker who controls a number of vehicles can organize them into a botnet using the current VANET infrastructure. We demonstrate three powerful attacks performed by our vehicular botnets. We then present our detection mechanism to find vehicular botnets, discuss possible approaches to evict them from the network, and the effect of their eviction. Our work is the first that ever proposed and designed vehicular botnets in the literature. The evaluation of our work is solely through simulations since experimenting with real autonomous vehicles is impractical and dangerous
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Data Tethers: Preventing Information Leakage by Enforcing Environmental Data Access Policies
Full text linkProtecting data from accidental loss or theft is crucial in today's world ofmobile computing. Data Tethers provides environmental policy control of information at the data level, rather than the file level. Data Tethers uses dynamic recompilation to add label tracking instructions to existing applications in the OpenSolaris operating system, allowing fine-grain data flow tracking in legacy applications without the need to recompile from source. We demonstrate the system's feasibility with microbenchmarks that show individual component performance and benchmarks of real user applications like word processors and spreadsheets
Author-wise bibliometric analysis based on entropy.
No full textAuthor-wise bibliometric analysis based on entropy.</p
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