1,721,120 research outputs found

    Going Beyond Counting First Authors in Author Co-citation Analysis

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    The 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

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    “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

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    We 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

    A hypervisor for infrastructure-enabled sensing Clouds

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    The lack of support and the shortcomings of Cloud computing in relation to pervasive applications can be addressed through the Sensing and Actuation as a Service (SAaaS) paradigm. In SAaaS, sensors and actuators, from both mobile devices and sensor networks, can be discovered, aggregated and elastically provided as a service according to the Cloud provisioning model. Nevertheless, managing a large set of sensing and actuation resources, characterized by volatility and heterogeneity, rises the need for specific mechanisms and strategies. In this paper we focus on management, abstraction and virtualization of sensing resources. More specifically, we describe the lowest level module of the SAaaS architecture, the hypervisor, that takes care of communication with devices and orchestrates their resources. The hypervisor operates according to policies and strategies coming from higher layers, and includes customization facilities that ease the integration of heterogeneous devices

    SWIMS: The Smart Wastewater Intelligent Management System

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    Wastewater treatment is a critical process in urban and industrial settlements aiming to clean and protect the water as well as the overall environment. Wastewater management systems are conceived explicitly for purifying wastewater, providing clean water efficiently, but this is a hard task due to frequent and quite unpredictable fluctuations of inlet wastewater flows, arising from (random) rain water or (periodical, e.g. day-night) sewage sources, sometimes also leading to failures and outages. To ensure the quality of the clean water out above a threshold and keep the overall system operating, this paper proposes the smart wastewater intelligent management system (SWIMS). It monitors and controls inlet and outlet flows as well as the water quality and parts of the plant as a cyber-physical system (CPS), starting from an Environmental Internet of Things (EIoT) platform. The data generated from the treatment plant is collected in an information system hosted by a server together with an intelligent system that processes this information in a real-time fashion and provides the feedback for optimizing the plant to maintain a good quality of water over time. Such an intelligent system exploits deep learning approaches to control the behaviour of the wastewater treatment system through anomaly detection, supporting decision making on it. SWIMS has been implemented in a real case study deployed in Briatico, Italy. The data and results collected from such a case study are presented, analyzed and discussed in this paper, demonstrating the feasibility and the effectiveness of the SWIMS solution

    A Novel Architecture for the Smart Management of Wastewater Treatment Plants

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    The primary goal of a wastewater treatment system is to take care of the environment as well as of people health by purifying sewage water. In urban and industrial environments, wastewater management is non-trivial since it has to deal with abnormal fluctuations in incoming water flows (due to rainwater or human and industrial sewage) that may cause failures and outages to the entire purification process. This paper proposes a solution based on a smart system to ensure the clean water quality by keeping the wastewater treatment system efficient. It is able to constantly and real time monitoring both the purity of the water and the inlet and outlet flows enforcing on them proper policies based on the monitored values thus acting as a cyber-physical system (CPS). The raw data, generated by an Environmental Internet of Things (EIoT) platform part of a real case study implemented in Briatico (Italy), is collected and hosted in a server that can process and manage real-time information about the plant

    Dispelling the Myths Behind First-author Citation Counts

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    We 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

    Author Index

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    koamabayili/VECTRON-author-checklist: VECTRON author checklist

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    We 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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