Visualizing science based on open data sources

Visualizing science based on open data sources

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  Visualizing science basedon open data sources Nees Jan van Eck and Ludo Waltman Centre for Science and Technology Studies (CWTS), Leiden University Workshop on Open Citations University of Bologna, Bologna, Italy September 4, 2018
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  VOSviewer 1
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  Users of VOSviewer •Researchers • Research institutions • Research funders • Scientific publishers • Industry 2
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  Data sources supportedby VOSviewer 3
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  Bibliometric networks 4 WoS Scopus Dimensions PubMed Crossref Citation network ofpubs / 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 data source
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  Types of networkssupported by each data source 5 Co-authorship Co- occurrence Citation Bibliographic coupling Co-citation Web of Science      Scopus      Dimensions      PubMed      Crossref     
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  Journal citation networkbased on openly available Crossref data 6
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  Demonstration • Journals: – Journalof Informetrics (Elsevier) – Scientometrics (Springer Nature) • Time period: 2007-2016 • Data sources: – Dimensions – Crossref – OCC (OpenCitations Corpus) – COCI (OpenCitations Index of Crossref open DOI-to-DOI references) 7
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  Coverage of publicationsand citations for each data source 12
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  Wish list forimproving open data sources • Expanding coverage of publications (OCC) • Opening citations (Crossref) • Opening other metadata, e.g. abstracts (Dimensions, Crossref, OCC) • Improving completeness and standardization of metadata (Crossref) • Speeding up APIs 13
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  Thank you foryour attention! 14