1,720,956 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 new telemetry monitoring system to enable Industry 4.0 initiatives in the South African heavy industry sector
Get PDFPhD (Electronic and Computer Engineering), North-West University, Potchefstroom CampusIndustry 4.0 initiatives aim to increase and maintain the operational efficiency of existing manufacturing methods and processes, as well as to enhance existing automation methods and technologies. Established heavy industries, such as the mining and steelmaking industry, water distribution schemes and power utilities, have been less proactive in adopting Industry 4.0 initiatives and methods. Machine-to-Machine communication and wireless networks form the backbone of the Industry 4.0 network layer. The aim of this thesis is to illustrate the current limitations present in wide-area wireless communications and to present a new telemetry monitoring system to address these limitations in the South African heavy industry sector.
In the first article, listed in Appendix B, a clear architectural description is presented that can be used to guide heavy industry players in the adoption of key Industry 4.0 principles in practice. An input-output methodological approach was followed to deconstruct the Industry 4.0 paradigm into two parts, namely the digital framework and the digital toolbox, with both
terms being coined in this article. Together, these two components form a roadmap that can be utilised to navigate the tides of Industry 4.0 adoption in the heavy industry sector.
In the second article, listed in Appendix C, a new software-based system is developed that actively monitors the network layer vital signs of a wide-area wireless telemetry system. The proposed monitoring system was implemented on a wide-area wireless telemetry network utilised by multiple industrial facilities within South Africa. The system successfully monitored more than 80 remote sites, with communication failures being detected immediately. The average connection uplink time was also increased by more than 25%.
In the third article, listed in Appendix D, the proposed monitoring system is integrated into existing real-time information systems. This integration allowed for the introduction of enhanced troubleshooting and maintenance procedures that can be followed on-site to rectify any network anomalies. Positive impacts were made on condition-based maintenance agreements between an energy services company and a South African gold mining company. The aim of the third article is to emphasise the value of the developed telemetry monitoring system in industry.
In the conference paper, listed in Appendix E, the value of an information and asset management system for the management of subscriber identification module (SIM) cards utilised in heavy industry is emphasised. The paper aims to analyse and present the current architecture of existing industrial information systems and discuss key challenges that contribute to communication disruptions. The paper introduces a new information and asset management system to address the challenges presented. The system is validated, and the results reflect the value of such a system in industry, with a communication cost reduction of 62%.Doctora
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
User-based activity logging and analysis to improve system maintenance
Get PDFMaster of Engineering in Computer and Electronic
Engineering, North-West University, Vanderbijlpark CampusSoftware maintenance is continuous and forms part of the software development process. Research suggests that 15% of the total software development cost should be allocated to implementing a maintenance model for a software system. Unused components or noncompliant software will increase over the project’s life cycle. The discontinuation of some
systems may reduce the resources required to maintain the system. Deciding how many resources
to allocate for maintenance for each subsystem can be challenging without a suitable
software maintenance prioritisation method.
Software logging is crucial to improve software maintenance by troubleshooting. In extensive
software systems, logging enables the development team to monitor specific events. A
suitable logging mechanism can identify the most used software system. In web-based applications,
the user interactions with each software system can be determined by capturing
user-based events.
Analysing logs can be challenging if the logging mechanism does not track the desired userbased
events. Developing a method to track these events for a specific purpose is more
efficient and reliable. The author suggests integrating the method to create a logging mechanism
and a log analysis to prioritise software maintenance.
The method for this study was divided into two main functional parts, namely the logging
mechanism and the log analysis. The characteristics of these user-based events, user types,
and user-based attributes are defined. The logging mechanism captures any user activity on
the software systems, and the logging points in strategic locations in the software systems
capture the log attributes. HTTP requests have more significant and relevant data about a
specific event. Additional data from request parameters are obtained as metadata that can
be used for system diagnostic purposes.
For the log analysis for this study, log quality is monitored to ensure that event logs are consistent,
reliable, and complete to create prioritisation recommendations for software maintenance.
A test system validates the method’s work, making modifications where needed. The
results of this method applied to case studies proved that the method can prioritise software
maintenance. The results are evaluated and discussed, and positive and negative points are
highlighted by implementing this method. Therefore, the study objectives have addressed
the need to develop a method for log analysis for software maintenance by creating a suitable
logging mechanism to capture user-based event logs.-ETA-Operations (Pty) Ltd
-IPGIP-bursaryMaster
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
Author-wise bibliometric analysis based on entropy.
No full textAuthor-wise bibliometric analysis based on entropy.</p
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