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VOSviewer: A software tool for analyzing and visualizing scientific literature

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VOSviewer: A software tool for analyzing and visualizing scientific literature

  1. 1. VOSviewer A software tool for analyzing and visualizing scientific literature Nees Jan van Eck Centre for Science and Technology Studies (CWTS), Leiden University ALPSP 10th Annual Conference and Awards Grand Hotel Huis ter Duin, Noordwijk, The Netherlands, September 14, 2017
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  3. 3. VOSviewer • Software tool for visualizing (bibliometric) networks • Built-in support for popular bibliographic databases • Text mining functionality • Layout and clustering techniques • Advanced visualization features: – Smart labeling algorithm – Overlay visualizations – Density visualizations (‘heat map’) 2
  4. 4. Users of VOSviewer • Researchers • Research institutions – Universities – Academic libraries • Research funders • Scientific publishers • Industry 3
  5. 5. Bibliometric networks in VOSviewer 4 Web of Science Scopus PubMed Crossref Citation network of pubs / journals / authors / orgs / countries Co-authorship network of authors / orgs / countries Co-citation network of pubs / journals / authors / orgs / countries Co-occurrence network of keywords / terms Bibliographic coupling network of pubs / journals / authors Bibliographic database
  6. 6. Demo: Creating bibliometric maps using VOSviewer • 2,667 publications in 3 journals (time period 2007–2016): – Journal of Informetrics – Journal of the Association for Information Science and Technology – Scientometrics • Data downloaded from: – Clarivate Analytics Web of Science – Crossref – oaDOI 5
  7. 7. Term map 6
  8. 8. Interpretation of a term map • Size: – The larger a term, the higher the frequency of occurrence of the term • Distance: – In general, the smaller the distance between two terms, the higher the relatedness of the terms, as measured by co-occurrences – The horizontal and vertical axes have no special meaning; maps can be freely rotated and flipped • Colors: – Colors indicate clusters of closely related terms 7
  9. 9. Term map: Time trend 8
  10. 10. Term map: Citation impact 9
  11. 11. Term map: Open access (green and hybrid) 10
  12. 12. Term map: Journals 11 JOI Scientometrics JASIST
  13. 13. Term map: Countries 12 ChinaUSA
  14. 14. Co-citation map of journals 13
  15. 15. Co-authorship map of authors 14
  16. 16. VOSviewer 2.0 • Users: – Management of research institutions – Research funders – Scientific publishers – Industry • Functionality: – Interactive visual exploration of the scientific literature organized in a customizable fine- grained manner – Linking the interactive visualizations to the underlying scientometric data – Better handling of large scientometric data sets – Taking advantage of new scientometric data sources 15
  17. 17. Do it yourself! 16 www.vosviewer.com
  18. 18. Thank you for your attention! 17

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