About the Linking Open Data dataset cloud

This image shows some of the datasets published in the Linking Open Data community project. Clicking any of the datasets will take you to its project homepage. It is also available in PDF and SVG versions.

This page is maintained by Richard Cyganiak and Anja Jentzsch. For any additions, corrections, questions, and comments, please email richard@cyganiak.de and mail@anjajentzsch.de.

Last updated: 2009-07-14

How is the diagram generated?

The image shows only datasets that are published as linked data and are interlinked with at least one other dataset in the cloud. Datasets that are not interlinked with the cloud are not shown; many of them can be found on the Datasets page of the LOD project wiki. The “FOAF profiles” and “SIOC sites” circles do not represent datasets published by a single provider, but are aggregates of many individual datasets. They are shown as single circles for historical reasons.

The size of the circles corresponds to the number of triples in each dataset. The numbers are ususally provided by the dataset publishers, and are sometimes rough estimates.

The direction of the arrows indicate the dataset that contains the links, e.g., an arrow from A to B means that dataset A contains RDF triples that use identifiers from B. Bidirectional arrows usually indicate that the links are mirrored in both datasets. The thickness corresponds to the number of links.

The layout of the diagram is done manually in OmniGraffle.

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