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Open AccessArticle

Research Trend Visualization by MeSH Terms from PubMed

Kore Institute of Science and Technology Information, 66, Hoegi-ro, Dongdaemun-gu, Seoul 02456, Korea
Author to whom correspondence should be addressed.
Int. J. Environ. Res. Public Health 2018, 15(6), 1113;
Received: 17 April 2018 / Revised: 28 May 2018 / Accepted: 29 May 2018 / Published: 30 May 2018
(This article belongs to the Special Issue Social Networks and Health)
Motivation: PubMed is a primary source of biomedical information comprising search tool function and the biomedical literature from MEDLINE which is the US National Library of Medicine premier bibliographic database, life science journals and online books. Complimentary tools to PubMed have been developed to help the users search for literature and acquire knowledge. However, these tools are insufficient to overcome the difficulties of the users due to the proliferation of biomedical literature. A new method is needed for searching the knowledge in biomedical field. Methods: A new method is proposed in this study for visualizing the recent research trends based on the retrieved documents corresponding to a search query given by the user. The Medical Subject Headings (MeSH) are used as the primary analytical element. MeSH terms are extracted from the literature and the correlations between them are calculated. A MeSH network, called MeSH Net, is generated as the final result based on the Pathfinder Network algorithm. Results: A case study for the verification of proposed method was carried out on a research area defined by the search query (immunotherapy and cancer and “tumor microenvironment”). The MeSH Net generated by the method is in good agreement with the actual research activities in the research area (immunotherapy). Conclusion: A prototype application generating MeSH Net was developed. The application, which could be used as a “guide map for travelers”, allows the users to quickly and easily acquire the knowledge of research trends. Combination of PubMed and MeSH Net is expected to be an effective complementary system for the researchers in biomedical field experiencing difficulties with search and information analysis. View Full-Text
Keywords: PubMed; medical subject headings; keyword network; MeSH correlations; MeSH Net PubMed; medical subject headings; keyword network; MeSH correlations; MeSH Net
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Yang, H.; Lee, H.J. Research Trend Visualization by MeSH Terms from PubMed. Int. J. Environ. Res. Public Health 2018, 15, 1113.

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