A bibliometric analysis of the landslide susceptibility research (1999–2021)

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Abstract
Landslide susceptibility assessment (LSA) is a significant part of landslide research, which plays an important role in preventing landslide disasters. It has gained an increasing attention in both the academic and practice fields for the past two decades. However, there have been few bibliometric analyses on this topic, although bibliometric analysis can inspire future researchers by exploring the overall characteristics of the published literature. This article aims at collecting and analyzing the information of the abstracts, authors, institutions, countries, journals, funds, and keywords of the recent 4,732 papers published from 1999 to 2021 in Web of Science (www.webofscience.com). In particular, latent Dirichlet allocation (LDA), a machine learning and text analysis method, is utilized to analyze the abstract of each article to identify the hottest research topics related to LSA. The results revealed that: (1) The amount of annual publications related to LSA generally shows an increasing trend, which accounts for about 22% of the total landslide publications in 2021; (2) The author of Pradhan B, the institution of the Chinese Academy of Sciences, the country of China, the journal of Natural Hazards and the funding agency of the National Natural Science Foundation of China, are the productive performers in each aspect of LSA; and (3) Machine learning methods have gained a rapid increase in LSA in recent five years, which have become the most popular research topic.
Funding Information
  • The National Natural Science Foundation of China (41902291)
  • the Natural Science Foundation of Hunan Province, China (2020JJ5704)
  • the Special Fund for Safety Production Prevention and Emergency of Hunan Province (2021YJ009)
  • the Research Project of Geological Bureau of Hunan Province (HNGSTP202106)
  • the Fundamental Research Funds for Central Universities of the Central South University (2021zzts0856)

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