在与COVID-19相关的交通杂志文章中发现研究主题、趋势和观点

IF 2.9 3区 工程技术 Q2 ENVIRONMENTAL STUDIES
R. Tamakloe, Dongjoo Park, Hyunho Chang
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引用次数: 2

摘要

摘要自2019年爆发以来,交通领域对新冠肺炎的研究兴趣零星增加。这导致学术期刊上的出版物数量空前增加,使得人们很难清楚地捕捉和理解整个文献中正在讨论的主题。本研究采用了结构主题模型,这是一种稳健的概率主题模型,结合了文档级元数据,以提取关注新冠肺炎和交通的非结构化文本大数据中的隐藏主题。为了理解所确定的主题,该研究考察了一段时间以来的主题趋势,并对其进行了比较,以深入了解作者基于本国经济状况的观点。总共收集并分析了在顶级交通/运输科学期刊上发表的421篇研究文章的摘要。研究结果表明,新冠肺炎和交通领域的主要学术问题与不断变化的旅行行为、机场财务表现和供应链优化有关。总体而言,研究趋势似乎正在转向航运排放、航空运输恢复、旅行行为和机场性能。此外,来自高收入国家和中低收入国家的作者对所确定的主题有不同的看法。这项研究的发现有助于理解新冠肺炎和交通文献中的主题趋势和观点,研究人员、政策制定者和资金提供者可以利用这些发现来认识当前的研究问题,以指导未来的研究方向,并做出更明智的政策决定。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Discovering research topics, trends, and perspectives in COVID-19-related transportation journal articles
Abstract Research interest in COVID-19 in the transportation field has increased sporadically since its outbreak in 2019. This has led to an unprecedented increase in the number of publications in academic journals, rendering it difficult to clearly capture and understand the themes being discussed in the entire literature. This study employs a Structural Topic Model, a robust probabilistic topic model that incorporates document-level metadata to extract hidden topics in unstructured textual big data that focuses on COVID-19 and transportation. To understand the topics identified, the study examined the topical trends over time and compared them to provide insights into authors’ perspectives based on their country’s economic status. In total, abstracts from 421 research articles published in top transportation/transportation science journals were collected and analysed. The results reveal that the major academic concerns in the area of COVID-19 and transportation are related to the changing travel behaviour, airport financial performance, and supply chain optimisation. Overall, research trends seem to be shifting towards shipping emissions, air transport recovery, travel behaviour, and the performance of airports. In addition, authors from both high-income and middle-and low-income countries were found to have different perspectives regarding the topics identified. The findings from this study contribute to understanding topical trends and perspectives in the literature on COVID-19 and transportation and can be used by researchers, policymakers, and fund providers to recognise current research issues to guide future research direction and for making more informed policy decisions.
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来源期刊
CiteScore
5.90
自引率
6.90%
发文量
36
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