What tagging system does this site use?

Tags on this site are non-hierarchical terms assigned to categorise and describe the content of articles. Specifically, tags are defined here as 'buzz' keywords or as the names of organisations, projects, and authors of interest.

Our tagging system is designed to facilitate discovery of related content across more than 1600 articles and to help monitor trends in discussion since Ariadne started publication in 1996.  

Specifically, this system looks for designated terms of interest, automatically tagging articles containing these terms (or close variants and synonyms).

In addition to our standard list of target terms, our system allows for some manual tagging of articles by editors.

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Tagging content: copyright image, used under license from shutterstock.com