1,721,043 research outputs found
Modified Topology-Based proactive routing protocols with indoor testbed design and development for Quality-Of-Service support in Vehicular AD HOC Network
No full textVehicular Ad-hoc Networks (VANETs) can produce scalable and cost-effective solutions for both safety-related and non-safety applications that rely on wireless communication. In VANETs, vehicles may disseminate helpful information about vital incidents, such as traffic conditions, route congestion, and incident warnings, providing extra efficient and circulated traffic management. For example, vehicles can receive the aforementioned information from their immediate surroundings in order to determine traffic delays or hazards. During this crucial event, the topology of such network shifts fast since the nodes are in continuous exchange at varying speeds. This results in several challenges that must be discussed accordingly in order to establish VANET effectively. Fast topological transitions and constant disconnection makes it difficult to produce an efficient routing performance for broadcasting data across vehicles, notably in vehicle to vehicle (V2V) communication. Many related investigations have been performed to identify routing protocols that have been proposed as a data dissemination approach. Routing protocols are classified based on how they transmit the packet from the source to the destination. In VANETs, routinely evaluating routing protocols can be challenging due to the lack of readily available installation packages and resources. The lack of universal support for many routing protocols has been indicated as a problem in previous literature. The evaluation of VANET protocols and applications relies largely on simulations. There are challenges in measuring performance in VANET environments, which is the lack of a unified platform for collecting and analysing performance data. The present study focuses on proactive routing protocols and the performance of VANET through the deployment of indoor microcontroller testbeds in motionless and motion states. Modifications have been proposed to the default Optimised Link State Routing (OLSR), Better Approach To Mobile Ad-Hoc Networking (BATMAN) and BABEL routing protocols. In the development of the testbed, Raspberry Pi 4, a two-wheel-drive (2WD) car chassis, and a number of components were used. Several scenarios were represented to determine the optimum performance incorporating both default and modified routing protocols. The Quality of Service (QoS) index measurement is used to measure the performance of the default and modified routing protocols based on throughput, delay, jitter, packet delivery ratio, and packet loss. According to the results of the study, BABEL routing has significantly better results than OLSR and BATMAN. The contribution of this study could lead to a more practical implementation of V2V communication
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
Adaptive fusion based deep learning framework for restoring underwater image quality using multi scale attention features
No full textVariations 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
Author-wise bibliometric analysis based on entropy.
No full textAuthor-wise bibliometric analysis based on entropy.</p
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