1,720,993 research outputs found
AI-powered solutions assessment in port and maritime sector
No full textAbstract: The digitalization of port and maritime, particularly through the adoption of AI-powered solutions, is a major trend these days. However, this research identifies gaps in the literature, including the lack of a consistent approach to distinguishing AI initiatives and quantifying their costs and benefits. To address these gaps, this PhD thesis employs a mixed-method approach, combining both desk and empirical research. This study develops two assessment models: an AI typology to differentiate AI solutions and a cost-benefit framework to conduct economic analyses of AI solutions. Furthermore, the research identifies a typology of 30 AI initiatives and ranks them based on deployment complexity, considering their application domains. Secondly, three detailed economic analyses are conducted at two implementation levels: micro and macro. The first analysis explores the use of AI to predict truck ETAs for a trucking company. The findings indicate that the truck ETA prediction project offers comparable profitability under two conditions: trucking companies with legacy systems but with potential for revenue growth through AI adoption or trucking companies without the chance for revenue growth but can avoid technical integration costs. However, the project becomes highly cost-effective when revenue increases, and technical integration is not required. The second analysis assesses the benefits of AI-assisted data entry for logistics companies when processing transport orders. The economic analysis reveals that modifying IT system architecture to incorporate AI-assisted data entry is not cost-effective for companies with low transaction volumes. However, horizontal collaboration can reduce organizational integration costs, typically 1% to 7% of total solution implementation costs. The third analysis evaluates an AI-powered solution to optimize the scheduling of tugboats and dock pilots within the lock. It highlights the trade-offs between incorporating fairness in task allocation and achieving cost savings through AI-driven optimization. Including fairness as a goal reduces cost savings, reflecting the social integration costs, which account for 31% and 23% of cost savings for tugboat and pilotage companies, respectively. Additionally, a gain-sharing scenario minimizes benefit losses among port stakeholders, reducing overall losses by 3.5% to promote vertical collaboration. Overall, this dissertation offers valuable insights into AI assessment in the port and maritime sectors, contributing to scholars and industry
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
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
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
Maritime supply chain innovation : costs, benefits and cost-effectiveness of ICT introduction
No full textAbstract: ICT innovation has become a key prerequisite for maritime supply chain (MarSC) stakeholders to remain competitive. In this context, new technological advancements from early EDI-based (electronic data interchange) solutions to contemporary blockchain-based tools are continuously changing the market. The MarSC actors need to decide which ICT solution to implement. In this process, own financial benefits are key. Equally so, the broader effects on other stakeholders participating in the chain are relevant. However, there is no comprehensive framework available to identify the costs and benefits of ICT innovation in the MarSC reported in the literature, nor applications that calculate their cost-effectiveness. This research identifies the cost-effectiveness of integration practices introduced by ICT innovation in the MarSC. To do so, it develops, validates and applies a comprehensive costs and benefits framework taking into consideration key characteristics of ICT innovation. A collection of 44 cases provides further empirical evidence with regard to the cost and benefit elements they generate. Subsequently, four detailed cost-effectiveness analyses are carried out focusing on integration. The first analysis shows how an internal data integration practice is cost-effective for a road transport company and reduces external environmental effects at the same time. The second one studies horizontal data-integration practices in the MarSC. Focusing on data integration amongst hinterland transport operators, the analysis proves that taking a multi-disciplinary approach in building ICT innovation provides a more cost-effective outcome. The third case study focuses on vertical data integration in the MarSC. It discusses the cost-effectiveness of three strategies to implement a blockchain-based application in the MarSC that facilitates the official documents transfer. This last analysis provides evidence with regard to the increase in a community\u2019s competitive advantage, when a mixed data integration tool is used. This tool is developed in the framework of a port community system. Overall, this dissertation provides new relevant insights with regard to costs and benefits generated by ICT innovation in the MarSC, and is valuable for both academia and industry
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