Mapping the biomedical sciences using Medical Subject Headings: a comparison between MeSH co-assignments and MeSH citation pairs
Keywords:MeSH, citation, co-assignment, map of life sciences, Gephi
Objective: This study compares two maps of biomedical sciences using Medical Subject Headings (MeSH) term co-assignments versus MeSH terms of citing/cited articles and reveals similarities and differences between the two approaches.
Methods: MeSH terms assigned to 397,475 journal articles published in 2015, as well as their 4,632,992 cited references, were retrieved from Web of Science and MEDLINE databases, respectively, which formed over 7 million MeSH co-assignments and nearly 18 million direct citation pairs. We generated six network visualizations of biomedical science at three levels using Gephi software based on these MeSH co-assignments and citation pairs.
Results: The MeSH co-assignment map contained more nodes and edges, as MeSH co-assignments cover all medical topics discussed in articles. By contrast, the MeSH citation map contained fewer but larger nodes and wider edges, as citation links indicate connections to two similar medical topics.
Conclusion: These two types of maps emphasize different aspects of biomedical sciences, with MeSH co-assignment maps focusing on the relationship between topics in different categories and MeSH direct citation maps providing insights into relationships between topics in the same or similar category.
Klavans R, Boyack KW. Exploring the relationships between a map of altruism and a map of science. Bull Am Soc Inform Sci Tech. 2015 Jan;41(2):30–3.
Börner K, Theriault TN, Boyack KW. Mapping science introduction: past, present and future. Bull Am Soc Inform Sci Tech. 2015 Jan;41(2):12–6.
Kuhn TS. The structure of scientific revolutions. Chicago, IL: University of Chicago Press; 1962.
Shneider AM. Four stages of a scientific discipline; four types of scientist. Trends Biochem Sci. 2009 May;34(5):217–23.
Klavans R, Boyack KW. Toward a consensus map of science. J Am Soc Inform Sci Tech. 2009 Mar;60(3):455–76.
Bernal JD. The social function of science. The Social Function of Science. 1939.
Small H, Griffith BC. The structure of scientific literatures I: identifying and graphing specialties. Sci Studies. 1974 Jan:17–40.
Ding Y, Chowdhury GG, Foo S. Bibliometric cartography of information retrieval research by using co-word analysis. Inf Proc Manage. 2001 Nov;37(6):817–42.
Leydesdroff L. Words and co-words as indicators of intellectual organization. Res Policy. 1989 Aug;18(4):209–23.
Peters HPF, van Raan AFJ. Co-word-based science maps of chemical engineering. Part I: representations by direct multidimensional scaling. Res Policy. 1993 Feb;22(1):23–45.
Peters HPF, van Raan AFJ. Co-word-based science maps of chemical engineering. Part II: representations by combined clustering and multidimensional scaling. Res Policy. 1993 Feb;22(1):47–71.
Rip A, Courtial JP. Co-word maps of biotechnology: an example of cognitive scientometrics. Scientometrics. 1984 Nov;6(6):381–400.
Balaban AT, Klein DJ. Is chemistry "the central science"? How are different sciences related? Co-citations, reductionism, emergence, and posets. Scientometrics. 2006 Dec;69(3):615–37.
Suominen A, Toivanen H. Map of science with topic modeling: comparison of unsupervised learning and human‐assigned subject classification. J Assoc Inf Sci Tech. 2016 Oct;67(10):2464–76.
Shu F, Dinneen JD, Asadi B, Julien C-A. Mapping science using Library of Congress Subject Headings. J Informetrics. 2017 Nov;11(4):1080–94.
Leydesdorff L, Rotolo D, Rafols I. Bibliometric perspectives on medical innovation using the medical subject Headings of PubMed. J Am Soc Inf Sci Tech. 2012 Nov;63(11):2239–53. DOI: http://dx.doi.org/10.1002/asi.22715.
Leydesdorff L, Comins JA, Sorensen AA, Bornmann L, Hellsten I. Cited references and Medical Subject Headings (MeSH) as two different knowledge representations: clustering and mappings at the paper level. Scientometrics. 2016;109(3):2077–91. DOI: http://dx.doi.org/10.1007/s11192-016-2119-7.
Lipscomb CE. Medical subject headings (MeSH). Bull Med Libr Assoc. 2000 Jul;88(3):265.
Coletti MH, Bleich HL. Medical subject headings used to search the biomedical literature. J Am Med Inform Assoc. 2001 Jul;8(4):317–23. DOI: http://dx.doi.org/10.1136/jamia.2001.0080317.
Liu M. The citation process in scientific communication: an analysis of citer motivation and citation characteristics of Chinese physicists [PhD]: University of Michigan; 1990.
Gephi. 0.8.2 ed: Gephi Consortium; 2015. [accessed 1 Oct 2020]. <https://gephi.org/>.
McCain KW. Mapping authors in intellectual space: a technical overview. J Am Soc Inform Sci. 1990 Sep;41(6):433–43.
Zhao D, Strotmann A. Information science during the first decade of the web: an enriched author cocitation analysis. J Am Soc Inform Sci Technol. 2008 Apr;59(6):916–37.
Leydesdorff L, Rafols I. A global map of science based on the ISI Subject Categories. J Am Soc Inform Sci Technol. 2009 Feb;60(2):348–62.
Yan E, Ding Y, Zhu Q. Mapping library and information science in China: a coauthorship network analysis. Scientometrics. 2010 Apr;83(1):115–31.
Hutchins BI, Baker KL, Davis MT, Diwersy MA, Haque E, Harriman RM, Hoppe TA, Leicht SA, Meyer P, Santangelo GM. The NIH Open Citation Collection: a public access, broad coverage resource. PLoS Biol. 2019 Oct;17(10):e3000385.
Song X, Chi P. VOSviewer yu Citespace yin yong bi jiao yan jiu [Comparative study of the data analysis results by Vosviewer and Citespace]. Inf Sci. 2016;34(7):108–12, 46. DOI: http://dx.doi.org/10.13833/j.cnki.is.2016.07.021.
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