1,721,025 research outputs found
Workshop: Distributed AI, machine learning, and emerging technologies for next-generation wireless networks
No full textLow Electromagnetic Field Exposure Wireless Devices: Fundamentals and Recent Advances
No full textNo abstract available
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
Design and Analysis of Electromagnetic Field Emission-aware User Terminals
Full text linkThe advancements in the wireless communication industry have revolutionised how societies exchange information. It is foreseen that wireless communication systems' capacity will have to grow by 1,000 folds to accommodate the ever-growing number of wireless users. A part of this capacity enhancement will be made possible via an increase in the number of access points (AP)s, which will increase the number and type of electromagnetic field (EMF) exposure sources in the environment. The World Health Organization (WHO) has classified these EMF radiations as possibly carcinogenic to humans. Therefore, this thesis aims at proposing novel techniques and performing exhaustive analysis to minimise EMF exposure, even well below the limits identified by the regulatory authorities.This thesis, firstly, provides a detailed survey related to the possible health hazards linked with the EMF exposure and the different metrics that are currently used for evaluating, limiting and mitigating the effects of this type of exposure on the individual user. Based on these EMF exposure metrics assessment, a novel EMF-aware resource allocation scheme for the uplink of power domain non-orthogonal multiple access (PD-NOMA) based systems is proposed, where each user terminal (UT) available in the network is equipped with a single antenna element for the uplink transmission. This scheme uses unsupervised machine learning (ML) technologies to reduce the EMF exposure by a fair margin compared to other existing EMF-aware scheduling schemes while satisfying the required quality of service (QoS).The presence of multiple antenna elements on a UT opens up opportunities to further reduce the EMF exposure compared to a single antenna element. In order to limit the potential health effect of EMF exposure, UT antennas must comply with EMF regulations, as they are very close to the human body. Therefore, the coupling between the two planar inverted-F antenna (PIFA) elements is substantially manipulated to reduce the specific absorption rate (SAR) to the human head. This work identifies the antenna element requirements to enable the design of context-aware multiple antennas handset to operate at low SAR in talk position and multiple-input multiple-output (MIMO) transmission mode in data mode. Results from this work shown that SAR can be reduced by a factor of three or more compared to a single antenna element when the appropriate settings identified in this work are selected.Based on the coupling manipulation analysis, a novel context-aware rim antenna design is proposed, which effectively exploits the level of mutual coupling between the antenna elements to reduce the EMF exposure when the UT comes in close contact with the human body. Analysis and results show that an up to 30% reduction in SAR (compared to their baseline value) can be achieved by any 2x2 MIMO rim antenna when using the proposed design
- …
