2018-2020-% Open access
peter.suber's bookmarks 2021-10-25
Summary:
"The map shows 3102167 publications. The classification underlying the map is based on 17 million PubMed publications from 1995 onwards and their citation relations (NIH Open Citation Collection).
Top level nodes (large nodes) represent research disciplines. For each of the discipline nodes, a network of sub-nodes is centralized to the node. Sub-nodes represent research specialties. When clicking on a discipline, sibling nodes are shown and a panel shows attributes as well as a list of children specilties. When clicking on a specialty, a list of children topics is presented...."
Also see the maps for 2013-2015
https://petersjogarde.github.io/papers/hiervis/oa/2013-2015/index.html
and 2008-2010
https://petersjogarde.github.io/papers/hiervis/oa/2008-2010/index.html