Dataset search in biodiversity research: Do metadata in data repositories reflect scholarly information needs?
Fig 5
Timelines for all repositories presenting the number of datasets per metadata standard and schema offered.
For several repositories, the timelines for the different metadata standards and schemata are almost identical and overlap. Obviously, when introducing a new metadata standard or schema, publication dates were adopted from existing metadata structures. Figshare’s timeline for RDF was computed separately as the data are too large to process it together with the other metadata files.